A division of Polybags UK

Polybags is the leading UK manufacturer of plastic packaging products including polythylene bags, film, sheeting, tubing, mailing bags, garment covers, bin liners & sacks, biodegradable bags and many more...

Are you looking for cheap, fast and quality polythene bags?

Compare our Prices and Save! Go directly to Polybags Limited, UK

What we offer?

  • Competitive pricing
  • Try before you buy: - Get a free sample today
  • Size doesn't matter: - At polybags we don't believe in minimum or maximum quantities. If we can fulfil your order, we will
  • Free delivery to UK for all online orders
  • Order Today & Use it Tomorrow: - Over 100 million &, 400 polybag sizes & styles in stock
  • No quibbles guarantee
  • Professional packaging advice

Who are Polybags?

Polybags Ltd is not just the best value international distributor of packaging materials. Unlike most packaging companies Polybags controls its own factories and can therefore extrude polyethylene film and make polythene bags to suit any order. This is important for several reasons:

  1. If you can't find *exactly* what you want in our extensive online stock list then Polybags can manufacture film or manufacture bags to your *exact* specifications

  2. No middle man means that you eliminate distributor markups and we deliver bags and film to you at the best possible price

  3. We can make film and bigs quickly and despatch directly to you saving yet more time. In fact we specialise in fast turnaround orders

  4. We can make film and bags in the quantities you require, when you want it; you don't have to wait 3 months for the next stock shipment to arrive

What would you say about plastic bags

Polybag on Sale

A big-format polybag in the 28x26x5 profile sits in the rather practical middle ground between a flat mailer and a light-duty dispatch sack; that geometry matters above list of products shorthand tends to recommend. At this size, volumetric efficiency is governed not merely by face dimensions nevertheless by how the side-gusset or depth allowance accepts soft products without forcing undue stress into the seal area, which is where failures normally start below conveyour handling. The better grades rely on high-density polythene suppliers blends with controlled melt-flow consistency, giving a film that grasps puncture resistance without drifting into unnecessary tare weight; that balance has a direct bearing on pallet stability, courier banding and, less apparantly, select-face efficiency when stock is handled in quantity. Where operations are running secondary bagging or fast bench packing, micron-specific gauging becomes a pure engineering selection rather than a line on a specification sheet, because above-gauged film adds dead weight across each consignment while below-gauged material tends to neck, wrinkle and snag at the sealing edge. There is also the circular-economy question, and the sensible reply is normally mono-material polythene suppliers building: it simplifies recyclability, avoids mixed-substrate pollution and retains the amortised energy burden of the pack in proportion to the value of the products being moved. In warehouse terms, then, a poly mailer of this sort is less an interchangeable envelope than a tuned consumableone that has to reconcile surface toughness, pack-line speed and downstream recovery without creating friction on the floor.

What tends to acquire lost in the public argument above plastic bags is that substitution at the shopping edge rarely alters the underlying materials economy; it merely shifts the format, gauge, and disposal route. Ban a lightweight carrier and the trade often migrates to thicker polythene suppliers stock, laminated secondary bagging, or low-turnover liners with a higher tare weight and a longer residence time in the waste stream. From an engineering standpoint, the trouble is not simply bag versus no bag, nevertheless the polymer architecture behind the article: whether the film is a mono-material structure with predictable melt-flow consistency and viable recyclate yield, or a blended building whose inks, additives and surface treatments compromise reprocessing. On the warehouse floor, these decisions transport consequences well beyond optics pallet stability, select-face efficiency and volumetric efficiency are all affected when ostensibly compliant alternatives arrive in bulkier formats that cube out vehicles sooner and generate more handling friction per consignment. The more serious operatours have so moved towards micron-specific gauging, tighter control of surface resistivity where static affects opening and packing rates, and designs that maintain mechanical strength through orientation rather than brute material addition. That is the less theatrical reality of the circular economy in this segment: not proper clarity, nevertheless a series of trade-offs involving feedstock sustainability, amortised energy across multiple use cycles, and whether the article can return as clean polymer rather than degraded mixed waste.

In the trade, the phrase discount poly bag tends to recommend small above a low unit rate, yet the industrial picture is rather more exacting. A polythene suppliers bag sold on price alone can demonstrate expensive once tare weight, seal integrity and pallet presentation are taken into record; if the film gauge drifts by even a few microns, pack consistency suffers, secondary bagging becomes more likely, and select-face efficiency drops away below the cumulative drag of split packs and awkward handling. The better operatours retain a close eye on melt-flow consistency and polymer distribution through the film web, because high-density chain structure, seal initiation temperature and surface slip all have a bearing on whether a bag runs cleanly on the bench and through despatch. There is also the awkward matter of staticparticularly with lightweight bags in dry warehouse conditionswhere surface resistivity can turn a straightforward packing task into a nuisance of cling, miscounts and line stoppage; antistatic treatment or a more disciplined resin blend normally mitigates it. Even at the discount stop of the stock profile, volumetric efficiency still governs the economics: flatter-packed bags improve cube utilisation, reduce dead space in a consignment and assist more stable pallet stacks. Where the specification remains mono-material, recyclability is at least preserved, and that mattersnot as a slogan, nevertheless because reclaimed feedstock and amortised energy increasingly shape procurement decisions only as surely as the nominal case rate.

polythene suppliers tubing 45cm (18in wide) 250 gauge.

polythene suppliers tubing at 30cm layflat and 250 gauge sits in that useful middle ground on the packing line: heavy enough to tolerate repeated handling, light enough not to distort tare weight or compromise volumetric efficiency across a mixed consignment. In practical terms, that gauge gives a denser, more stable sleeve for secondary bagging and cut-to-length packing, particularly where product dimensions wander and a fixed-format bag would leave also much dead air in the pack. The material behaviour matters herehigh-density polymer chain alignment and sensible melt-flow consistency amid conversion govern puncture resistance, seal integrity and the method the film snaps open at the select-face rather than clinging to itself below dry warehouse conditions. There is also a stock-control advantage; tubing of this width enables operatours to standardise around a narrower spectrum of formats while still trimming to suit awkward lengths, which improves pallet stability and reduces the clutter that accumulates when also plenty tailored bag sizes are held on the shelf. From a circular-economy standpoint, mono-material polythene suppliers remains relatively straightforward to recover where streams are kept clean, and the amortised energy in a well-gauged film is often better defended by damage reduction than by shaving microns to the point of failure.

polythene suppliers Carrier Bags and Paper Bags

polythene suppliers carrier bags remain a surprisingly exacting product type once the conversation transports off the sales sheet and onto the warehouse floor. The contrast between a bag that merely grasps products and one that performs properly through filling, stack-out and last handover lies in the resin architecture and the converting discipline behind it: melt-flow consistency governs film stability amid extrusion, while micron-specific gauging dictates whether the bag will tolerate shock loading at the handles or fail below a modest, uneven consignment. In practice, the better operations treat gauge control, seal integrity and surface slip as interdependent variables rather than isolated specifications; that come mitigates snagging at the select-face, reduces waste amid secondary bagging, and maintains pallet stability by avoiding the fat, inconsistent case profiles that lighter-grade film often manufactures. There is a logistical dividend as well, because low tare weight improves volumetric efficiency without introducing the storage penalties associated with heavier fibre alternatives in damp or grease-prone environments. The circular economy case is equally technical rather than rhetorical: mono-material polythene suppliers streams are simpler to reclaim where stock discipline is sound, and when recycled content is incorporated with care, the aim is not sentiment nevertheless predictable conversion behaviour, acceptable clarity and a finished bag that still meets the rough handling realities of shopping and catering distribution.

40ft high cube shipping container of polythene suppliers film shipped from Lane Head, West Midlands to Shanghai in United Kingdom

For export consignments of polythene suppliers film above intercontinental sea lanes, the engineering argument tends to favour a 40ft high-cube container not because it sounds big, nevertheless because film is a decidedly awkward load once palletised: low tare at reel level, high cube at consignment level, and remarkably susceptible to movement if the wrap tension, core crush resistance and pallet pattern are not properly matched. That is the warehouse-floor realityvolumetric efficiency normally governs before all weight comes into play, so the additional internal headroom is less a luxury than a means of preserving pallet stability and avoiding wasted air. The material itself adds another layer of complication; high-density polymer chains may transport the stiffness and puncture behaviour the converter wants, yet micron-specific gauging still has to remain consistent across the reel if downstream bag-making or secondary bagging lines are to grasp seal integrity at speed. Sea freight introduces a longer dwell time and more variable temperature profile than plenty buyers care to acknowledge, which is where surface condition, slip performance and, in a few grades, surface resistivity beginning to matter rather above they do on a short domestic dash. If the film is specified as a mono-material structure, the circular economy case is at least technically coherentcleaner recyclability, less separation losses, and better prospects for reprocessing into usable feedstockthough that promise depends heavily on pollution control, reel protection and melt-flow consistency being maintained from dispatch through to de-vanning.

polythene suppliers bags are not simply manufactured so much as engineered through a tightly controlled conversion process in which resin grade, melt-flow consistency and gauge tolerance dictate how the finished article behaves on a packing bench or in a despatch cage. The work beginnings with polymer pellets being hot and extruded into a continuous film bubble, then drawn, cooled and collapsed at speeds that leave small room for tolerance; a few microns either method can alter puncture resistance, seal integrity and even the bag's tendency to cling below dry warehouse conditions where static impedes select-face efficiency. From there, the film is slit or folded, heat-sealed and cut to format, with secondary bagging and carton counts set as much by volumetric efficiency and pallet stability as by the nominal dimensions of the bag itself. The industrial reality is that a well-manufactured bag must balance tare weight impact against usable strength, particularly where consignment packing is charged by cube as well as mass, and that is where high-density polymer chains, anti-slip additives and carefully specified surface resistivity start to matter. There is also a quieter shift in the sectour towards mono-material buildings and cleaner mail-production scrap recovery, not out of sentiment nevertheless because recyclability, feedstock discipline and amortised energy per thousand bags increasingly shape procurement decisions as firmly as seal performance on the line.

Chapter One Introduction of polyethylene bags Industry

What sits behind the headline figures for polyethylene bags is less a tidy growth curve than a set of engineering trade-offs playing out across converting lines, packing benches and waste streams. Demand has been shaped not simply by unit volume, nevertheless by how effectively a given film grade balances downgauging against puncture resistance; high-density structures grasp edge definition and stack neatly, which assists pallet stability and improves volumetric efficiency in a mixed consignment, while lower-density blends are often specified where elongation and seal integrity matter above crisp presentation. That distinction has direct consequences on the warehouse floor: excessive tare weight erodes transport economics at scale, poor slip properties slow select-face efficiency, and inconsistent melt-flow can turn a nominally cost-effective reel into stoppage, scrap and secondary bagging. The more serious market assessments so read beyond tonnage and capacity tables, examining surface resistivity for static-prone applications, micron-specific gauging tolerances in automated filling, and the extent to which mono-material polythene suppliers formats can be recovered without contaminating existing recycling streams. In that sense, the industry's direction has been set as much by converter discipline and stop-of-line practicality as by headline demand, with feedstock volatility, recycled-content compatibility and amortised energy per usable bag all exerting a quiet nevertheless measurable influence on specification.

Polyethylene bag wrapping to prevent hypothermia amid percutaneous central venous catheter insertion in the preterm newborn below 32 weeks of gestation

During PCVC insertion, the practical value of a polyethylene bag lies less in any vague view of covering and more in how a thin polythene suppliers film alters the heat-loss pathway at the skin interface. By limiting evaporative and convective losses, the bag creates a modest nevertheless measurable thermal buffer around the patient; that matters amid line placement, when exposure is often partial, awkwardly prolonged and dictated by aseptic access rather than thermal housekeeping. The material itself is doing quiet technical work: high-density polymer chains provide a stable moisture barrier at very low gauge, so tare weight remains negligible and handling does not become cumbersome around drapes, leads or secondary bagging of ancillary items. There is also an operational neatness to itstock is simple, volumetric efficiency in storage is high, and melt-flow consistency amid manufacture tends to yield predictable film behaviour without the static nuisance seen in a few lighter substitute substrates. The absence of observed adverse effects is encouraging, although the proper engineering question sits elsewhere: whether longer dwell times below wrap alter condensation, skin maceration risk or select-face efficiency amid fast-turn procedural setups, and whether a mono-material format could maintain thermal performance while improving recyclability within clinical waste segregation systems.

LEGO Marvel Super Heroes The Guardian’s Ship (30525) Polybag Review

Absent any sanctioned visual reference, a polybag programme of this sort is typically driven by second-order data rather than pristine origin geometry; design teams are often working from licensour packs with partial elevations, colour-callouts and proportion notes, then translating that into a format constrained by part count, bag dimensions and hanging-stock presentation. That has a direct packaging consequence: the polybag itself must transport more of the consignment's communicative load than a carton would, while still preserving volumetric efficiency at shelf and in transit. In practice, that favours a tightly gauged polythene suppliers film with predictable melt-flow consistency and controlled seal performance, because even minour drift in micron profile can upset pack flatness, header alignment and pallet stability once the stock is case-packed. There is also the matter of perceived heft versus tare weight impact; a polybag for a small building item requirements enough body to resist looking insubstantial on the select-face, yet not so much material that secondary bagging, freight cube and amortised energy all become harder to justify. Where the article inside depicts a vehicle that is compact rather than fat, with a detachable sub-assembly and apparant handling play, the package format quietly mirrours that logicmono-material polythene suppliers facilitates recovery streams, low surface area retains print and resin use in check, and the all exercise becomes an object lesson in how licensours, converters and warehouse operations reconcile visual ambiguity with physical reality.

Our manufacturing capacity

We run 13 extruders (a combination of British, Italian and Taiwanese made machinery), a number of which have film treaters, in-line printers and double unwinds for sheeting production. All in-house extrusion scrap is recycled using our Erema Reprocessing plant with reprocessed grades stored in internal silos.

All our extruders are also linked to sales with a real time scheduling system, so we can give immediate information on lead times and make adjustments where required. Ask our sales team about the system as they love it!

After a major investment project with 3 new extruders, recent extrusion investment includes new silos, print units, improved air rings and chillers, a new wide winder plus jumbo take-off units.

Summary Range of Capabilities

  • Minimum Film Width 1" (25mm)
  • Maximum Film Width 55" (1400mm) [Note " max 50" if flat un-gussetted film required]
  • Minimum Film Thickness 80 gauge (20micron) in special high melt films, otherwise 100 gauge (25micron)
  • Maximum Film Thickness 1000 gauge (250micron) [Note " max 600g above 40" width]

Film available as Layflat Tubing or Sheeting (Centre Fold, Double Wound, Single Wound and J-Fold)

Information on Polybag

Poly bags, also known as polythene bags, have a variety of uses in many industries. In the apparel, garment, sew goods, fabric and related industries, poly bags are use to protect goods during shipment from dirt, dust, and moisture. Material Concepts is a leading supplier of poly bags in various styles, sizes, shapes, and densities. Our styles include:

  • Flat poly bags
  • Poly bag tubing
  • Reclosable poly bags (also known as resealable or ziplock bags)
  • Wicketted poly bags
  • Gussetted poly bags
  • Garment poly bags
  • Poly film
  • Poly sheeting

Uses and Application for Poly Bags

The uses for poly bags are virtually without limit! Whenever there is a need to protect an item during storage or shipment, Material Concepts can supply a poly bag that is right for the job. Lighter density poly bags are a good choice for items that are not heavy and require only a simple shield from their surroundings. Heavy density poly bags keep your goods safe from harm in more abusive environments where dirt, dust, moisture, movement, etc. are factors that may damage your goods.

The shape of the bag is also an important consideration in some cases. Flat poly bags are general purpose bags that are often used where a clear presentation at a low cost is desired. We offer wicketted poly bags and gusseted poly bags for applications where the shape and style of the poly bag is vital to how it will be used. For protection against moisture in particular, a reclosable poly bag is suggested, keeping your goods safe while allowing for easy opening and closing.

Garment poly bags are specially designed and shaped for use with shirts, coats, pants, etc. for protection and ease of use in apparel applications. Poly film and poly tubing are used where large quantities are required and use of a roll of the film or tubing is a good solution.

Polybags range of materials

Polybags specialises in the following film materials

  1. Standard Melt 2 Low Density Polythene (LDPE) Films for general packaging applications.
    Suitable for the majority of general film and bag requirements, our standard film blend has an anti-blocking agent and a slip agent to help during the film extrusion process and to produce a product that it easy for you to handle and open. Film without slip or with additional slip concentrations is available on request and our film is certified Food Grade Approved.
  2. Low Slip Melt 1 LDPE Films for shrink film and sack applications
    This film has a higher molecular strength and is designed for shrink applications. During the extrusion process the film is expanded into a bubble whilst molten and then quickly solidified, effectively "sealing in" the shrink effect which is released when heated by a shrink gun or heat tunnel. This grade also has no additives which means it has a less slippy feel and is suitable for stacking. Its higher molecular strength than the Standard Melt 2 film also means it is used to manufacture heavy duty sacks.
  3. High Melt 4 LDPE Films for thin dust cover / garment cover uses
    A soft film which has limited strength properties but is very flexible and so we are able to downgauge during extrusion to very thin films of 80gauge (20micron) or less. This can save significant quantities of film and so cost to you where the application is very light duty, in particular for garment and dust covers.
  4. High Tensile Films for maximum strength to thickness requirements
    A blend of polymers including Medium Density Polythene which creates the ultimate strength film at thin thicknesses. Clarity is not as good as other films nor is flexibility (film has a slight rough crinkly feel) but the material is perfect for thin food grade tint sheets and other tinted and coloured films.
  5. Metallocene Blends for premium high clarity Films
    Metallocene is a term for polyethylene raw material that has been manufactured in a slightly different way to usual using a metallocene catalyst, resulting in film with extremely good optical and strength properties. There is additional cost in manufacturing Metallocene raw material and so the film is more expensive but this may be justified where high film clarity and strength is required.
  6. Electroconductive Blends for electrically sensitive packing
    Electroconductive film is based on special blends of highly conducting carbon Blacks compounded into low density polythene. The film is therefore electrically conductive and designed for handling and packaging electrostatic sensitive devices. As a result of its spark free properties, it is also used to store explosive devices although it can also be used for general packaging to avoid dust attraction on components.
  7. Biodegradable Film for composting applications
    Our biodegradable film has an additive blend which provides first oxidative and then biological degradation of the material, typically within 6 months to 2 years in a landfill site or standard composting system. Compared to many other environmental alternatives, this is a cost-effective, strong and recyclable film solution.
  8. Reprocessed Films for low cost and low quality uses
    Reprocessed Film is extruded on request. The main problem is lack of recyclable material available as it is such a popular option. Although product quality is not as good as virgin material, recycled film is a low cost and extremely environmentally beneficial film solution and we will always offer it whenever we have sufficient material.

How Polythene bags are made?

If you looking for a comprehensive and detailed information on how polythene bags are made please visit
Packagingknowledge - Online resource on flexible packaging materials
This website is intended to provide a basic understanding of flexible plastic packaging products such as bags, film, liners, sheeting, tubing, covers, sealers, ties etc. It covers introduction of the product, history of the product, how product is made, properties of packaging products.......

www.packagingknowledge.com

Guide to poly bags

Looking for following bags then contact Polybags Limited on 020 8575 8200.....

Flat Poly Bags

Flat Poly bags, also known as layflat poly bags, have a variety of uses in many industries. Material Concepts is a leading supplier of flat poly bags in various styles, sizes, shapes, and gauges. Contact us for the following products:

  • Clear Flat Poly Bags
  • Clear Flat Poly Bags on Rolls
  • Amine Free Pink Anti-static Flat Poly Bags
  • Transparent Pink Anti-static Flat Poly Bags
  • Black Conductive Poly Bags
  • Transparent Metallic Static Shielding Bags
  • Clear Flat Poly Bags with White Block
  • Clear Flat "Parts" Poly Bags with White Block

Poly Tubing

Poly Tubing, also known as polyethylene tubing, has a variety of uses in many industries and applications. Material Concepts is a leading supplier of poly tubing in various sizes and gauges. Our poly tubing on a roll allows you to create poly bags customized for the product to be protected. The poly tubing goes over your product, and then you cut and optionally seal either or both ends to protect the goods.

Contact us for the following products:

  • Amine Free Pink Poly Tubing
  • Transparent Pink Anti-Static Poly Tubing
  • Black Conductive Poly Tubing
  • Clear Poly Tubing
  • Poly Tubing Dispensers

Reclosable Poly Bags

Reclosable Poly bags have a variety of uses in many industries. They also have a variety of different names, including:

  • Recloseable Poly Bags
  • Resealable Poly Bags
  • Ziplock Poly Bags
  • Zip Lock Poly Bags
  • Ziploc Poly Bags (SC Johnson & Son Inc. brand name)
  • Zip Lok Poly Bags
  • Zip Top Poly Bags
  • Zipper Top Poly Bags
  • Zipper Poly Bags
  • Slider Top Bags
  • Slider Plastic Bags
  • Reclosable Slider Bags
  • Minigrip Poly Bags (Minigrip/Zip-Pak brand name)

Polybags Limited is a leading supplier of reclosable poly bags in various styles, sizes, shapes, and properties. Contact us for the following products:

  • Clear Reclosable Poly Bags
  • Clear Reclosable Parts Poly Bags
  • Clear Reclosable Poly Bags with White Write-on Block
  • Minigrip" Reclosable Poly Bags
  • Minigrip" Reclosable Poly Bags with White Write-on Block
  • Minigrip" SliderGrip" Poly Bags
  • Reclosable Bubble Bags
  • Minigrip" Transparent Pink Anti-static Reclosable Poly Bags
  • Reclosable Transparent Metallic Static Sheilding Bags

Wicketed Poly Bags

Wicketed Poly bags, also known as wicketted poly bags, have a variety of uses in many industries. Wicketed poly bags hang on a metal bracket so that they are easily removed for use in packaging and other applications. These are side weld poly bags with two holes at the top of the bag where the metal wicket is placed to hold them. They are often used in high speed automatic packaging systems, semi-automatic bag openers, or in manual operations. Material Concepts is a leading supplier of wicketed poly bags in various styles and sizes.

Clear Wicketed Poly Bags

These bags are made of 100% virgin Low Density Polyethylene (LDPE) resin that meets FDA/USDA specifications.

Bags are mounted 250 per 5" heavy wire wicket for fast and easy manual loading.

Bottom gusseted to provide extra space and neat presentation of products.

Can be heat sealed, tied, stapled or taped shut.

Gusseted poly bags & bin liners

Gusseted Poly bags, also known as gusseted plastic bags, have a variety of uses in many industries. Material Concepts is a leading supplier of gusseted poly bags in various styles, sizes, shapes, and gauges. Contact us for the following products:

  • Clear Gusseted Poly Bags
  • Clear Gusseted Poly Bags on Rolls
  • Gaylord Liners and Bin Liners

Poly Garment Bags

Poly garment bags, also known as garment poly bags or plastic garment bags, have a variety of uses in many industries. The typical consumer is familiar with poly garment bags from the dry cleaners. In the apparel and sewn goods industries, every shirt, blouse, coat, etc. is transported in a poly garment bag. Protect your garments during shipment with these clear polyethylene bags. Material Concepts is a leading supplier of poly garment bags in various sizes. Contact us for: Clear Poly Garment Bags

Poly Films

Poly Film from Material Concepts Poly film, also known as polyethylene film, has many uses in a variety of applications and industries. In the apparel, garment, sewn goods, fabric and related industries, poly film is used to protect goods during shipment from dirt, dust, and moisture. Material Concepts is a leading supplier of poly film, also know as stretch film or stretch poly film.

Polyethene Sheeting

Poly sheeting, also known as polyethylene sheeting, has many uses in a variety of applications and industries. For packaging, shipping, and storage, poly sheeting is used as pallet covers (pallet top covers). In the food industry, polyethylene sheets are used as bin covers and bin liners for large containers of food products. Material Concepts is a leading supplier of poly sheeting for any use, including pallet covers, bin covers, bin liners, and poly tarps.

Pallet Covers

Poly sheeting keeps pallet tops clean and dry during shipping and storage. Each sheet is folded in half and opens to 60" x 60". The top of the pallet is covered with a poly sheet, then poly stretch wrap / film is used to wrap the pallet as needed. The poly sheets come in easy-to-dispense perforated tear-off rolls. Our poly sheeting is made of tough 2 mil Low Density Polyethylene (LDPE) film, available in clear, black or white, with 175 covers per roll wound on a 3" core with 1" diameter plug.

Bin Liners and Bin Covers

Poly sheeting can also keep the contents of bins, boxes, and containers clean and dry during shipping or storage. Bin liners and bin covers are designed for industrial use. Poly sheeting used for bins comes in clear or black, in a variety of thicknesses and sizes.

Poly Tarps

Poly sheeting can be used as a poly tarp for protecting large items or products. For example, a poly tarp can be draped over machinery to protect it from dirt and dust, or put over building materials stored outdoors to protect them from weather. Poly tarps are available in clear or black, in a variety of thicknesses and sizes.