Mailing bags

Buy from a massive range of discount mailing bags now, including economy mailers, heavy duty mailers and secure mailing bags.

Mailing bags are a convenient and cost-effective alternative to regular paper envelopes and parcels for sending items in the post. Made from strong, lightweight and waterproof polythene, the contents of a mailing bag will be protected from the elements, whilst the bag itself won't rip or tear. Mailing bags at discount prices provide some of the best value you will find in office stationery and supplies, whilst a range of smart, glossy mailorder bags, coloured mailing bags and printed mailing bags means you can make a great first impression with customers.

Mailing bags are…

• Convenient for sending items in the post that require additional protection or are needed to carry a brand.
• Great at keeping package contents safe and dry during traditional mail or courier post.
• Also known as mailers, poly-mailers, plastic envelopes or mailorder bags
• Made from polythene to provide a perfect waterproof coating for your mail - much better than soggy envelopes!
• Very light which means that postage costs stay low
• Strong which means your envelope won’t tear or rip before it reaches its destination
• Similar in appearance to a regular envelope - rectangular and flat - and open in the same way, at one end to allow you to place your package contents inside
• Simple to use, with an adhesive strip running alongside the opening of the bag. Just fill the bag with your postage contents, rip off the covering tape, fold down the flap and your mailing bag is ready to post. Easy peasy!
• A great way to advertise your business. Get your company logo, design or slogan printed on the outside of the mailing bag and impress your customers as their mail lands on their doormat

Results from recent searches on mailing bags

Plastic mailing bags need careful film control because small variations fast display up on a packing bench. A bag manufactured with the gross gauge can split at the opening, curl in the stack, or seal unevenly when folded and pressed through a busy line. That sort of drift slows down select-face work and creates more reject material than plenty buyers expect. A well-set high-density polythene suppliers building gives enough stiffness to handle without feeling heavy, and that assists pallet stability as stock builds for despatch. When the film thickness stays consistent, operatours acquire cleaner feeding, tidier stacking, and less time-wasting stoppages.

Recycled mail bags only perform properly when the film is manufactured with tight process control, because reused polymer behaves less evenly than virgin resin. A bag can still see fine on the outside and fail in use if the melt has thin spots, weak seams, or poor stretch properties. That creates trouble on the packing bench, where cartons retain moving, film snags on rollers, and re-bagging wastes time. Good gauge control and careful selection of recycled feedstock assist retain puncture resistance at the proper level without adding unnecessary weight. A steadier web gives better seals and less handling failures before dispatch.

Red mail bags only work well when the bag, the frame and the loading routine are matched properly. A bright colour assists staff select them out fast, nevertheless visibility means small if the bag hangs loose, bows below weight or refuses to sit square while the ramps steer it into position. Once the clips, catches and assists start to slip out of true, the bag beginnings to creep or twist, and what should be a tidy transport becomes a messy decanting job with missed items. A sound gauge and a smooth surface assist the bag retain its shape and transport cleanly, so handling stays controlled and the process does not bog down.

polythene suppliers mailing bags need to be matched to the load, because the gross gauge soon causes trouble in handling and dispatch. A flimsy bag may split at a cage corner or when it is dragged across a conveyour, while an above-specified one takes more material than needed and occupies more pallet cube than necessary. The proper test is how the film behaves below pressure, knocks and stacking, not how it sees on the reel. A sensible spec retains the content secure, reduces damage claims and avoids wasting film on a job that does not need it.

Large Postal Bags

Large mailing bags need a balanced film specification because light gauge alone will not survive rough mail handling. Bags carrying documents, small tools or boxed medicine can be scuffed on corners and edges, and once a weak point beginnings, a split seam follows fast. A heavier film may see safer, nevertheless additional tare weight eats into load efficiency when a consignment is being built up in bulk. Good designs use polythene suppliers with proper melt flow, the proper micron spectrum and, in plenty cases, layers that give puncture resistance without making the fold also stiff. The optimal bag is the one that protects contents without wasting capacity or creating avoidable damage in transit.

Strong mail bags have to cope with rough handling as well as weight, so the first issue is whether the material can survive proper dispatch conditions rather than only feeling robust in the hand. A bag that is also thin will split at the folds, seams, or closure point when it is lifted, dropped, or pushed through sorting, while one that is heavier than needed can waste material and make packing slower. Good performance comes from matching gauge, seam strength, and closure to the load so the sack stays tidy and intact through the cycle. That is what prevents awkward failures at the worst moment.

Blue mail bags are chosen for hard-wearing mailing handling, not for appearance, and the colour often assists stock control as much as identification. The pigment sits inside a polythene suppliers blend that has to grasp up below drag on conveyours, repeated drops into cages and the squeeze of stacked loads, so the film requirements superb memory as well as decent puncture resistance. A bag that is also soft will distort, split at the seams or slip out of shape amid sorting, while one that is also heavy adds waste without making the consignment easier to handle. The optimal specification gives a proper gauge, proper sealing and enough toughness for a rough journey through the chain.

White mail bags are a sensible selection for fast despatch lines because they keep safe light products without making the packer fight with awkward packaging. The pale surface is easy to read at a glance, so labels, sorting labels and order details stand out properly on a busy bench where several small consignments may be moving at once. That assists reduce picking errours and retains the work area tidier, particularly when documents, discs or flat printed items need more protection than an envelope nevertheless not the bulk of a carton. The result is quicker handling with less mix-ups at the packing table.

Courier mail bags need to do above transport parcels from A to B; they must survive rough handling, retain paperwork attached, and close reliably all time. A bag with a pocket on the outside assists separate delivery notes, labels, or return slips from the main consignment, which saves time at the sortation stage and reduces mistakes when items are scanned or checked in. The proper polythene suppliers grade matters as well, because a bag that is also light can split at the seams, while one that is also stiff may be awkward to occupy and seal. Strong seals and a clean adhesive strip assist maintain security amid transit, and that makes a proper contrast when parcels transport through busy warehouse and courier networks.

Big mail bags are only useful when mail is being handled honestly and kept below proper control. Seeing one outside the normal chain of custody raises apparant questions, because those bags are meant for secure assortment, sorting, and delivery rather than casual movement from one place to another. In mailing work, a bag like that should be tracked, sealed, and treated as accountable stock, much like a controlled consignment in a warehouse. If a bag appears in the gross setting, the concern is not only appearance; it recommends a lapse in supervision, record-keeping, or loading discipline. That kind of slippage damages trust fast, and trust is hard to rebuild once handling sees careless.

Mailing bag types

A mailing bag is a polythene envelope used to send contents in the post, but the name covers a whole range of different products. Here are just a few of them:

Lightweight economy mailers - the original and (according to many) best mailing bag. A traditional polythene mailer with no bells or whistles - just a strong, waterproof and lightweight envelope that is very reasonably priced and perfect for you to send items to your clients or customers without breaking the bank.

Glossy blue mail order bags - the mailing bag that speaks business, these metallic blue mailers are guaranteed to give your company the edge and impress your customers. Popular with online traders and mail order companies alike, these mailers are strong and professional in appearance without costing the earth.

Extra tough mailing bags - for those occasions where you want a little bit of extra protection to the contents of your post, these heavy duty mailing bags are perfect for withstanding bumps, scrapes and bangs in transit. Don’t mess with the heavy mob - these mailers are strong, tough and ready to rumble!

Vibrant colourful mailing bags - when you want your mail to stand out from the crowd, what do you do? You send it in a radiant, eye-catching coloured mailer! Guaranteed to bring any package to life, these polythene mailers come in a range of vivid colours - including baby pink, eco green and vibrant purple - to brighten up your customers’ day!

High security mailing bags - if your mail requires an extra level of security then a range of high security mailers are available to give you added peace of mind. Extra thick opaque mailers - available in black or white - provide top secret content confidentiality, while tamper-evident mailers that show if someone has been interfering with your delivery.

Print your very own personalised mailing bags

Take your business to the next level with printed mailing bags personalised with your company logo or design.

This is an ideal way to promote your business as your mail is guaranteed to stand out from the crowd and you are reaching the consumer directly in their own home or office.

There are many ways that you can personalise your mailers - a simple logo, distinctive colour scheme or typeface, company catchphrase or advertising slogan, to name but a few - and ensure that your delivery doesn’t get lost in a pile of post, but really stands out from the crowd!

A firm favourite with retailers in the UK and all over the world, printed mailers have proved to strengthen brand identity and increase customer awareness, so make sure you take advantage of a simple way to give your business a boost.

Where to buy mailing bags

Mailing bag manufacturers and suppliers include:

Polythene Mailers
Polythene Mailers are specialists in polythene mailing bags, stocking a huge collection of waterproof mailers in a variety of styles, shapes and sizes and plain or printed with your own design. With free delivery to any UK address, this is the place to go for polythene mailers!
www.polythenemailers.co.uk

Mailing Bags
The UK's online home of mailing bags caters for all of your mailer needs. Check out their huge catalogue of mailing bags in every style from economy mailers to glossy blue mailorder bags. Also features a fantastic size guide so you know exactly what size mailing bag to buy.
www.mailingbags.co.uk

Mail Order Bags
The home of mail order bags - the lightweight, waterproof and tough plastic envelopes that provide the perfect way to send your mail. Select from a huge range from heavy duty postal bags to light jiffy bags.
www.mailorderbags.co.uk

Plastic Mailing Bags
Mailing Bags is a fantastic website selling a huge range of polythene mailers at very competitive prices. Order online from a range of clear and coloured mailers, with free delivery to any UK address.
www.mailingbags.co

Mailing Bag
Another great mailing bag website, which sells a huge range of bags and provides a comprehensive rundown of why mailing bags are the postal bag of choice for online retailers.
www.mailing-bags.co.uk

Buy Mailing Bags
Packed full of information on mailing bags - including a detailed description of each mailing bag type - along with a comprehensive list of where you can buy them, this is a serious mailing bag website.
www.buy-mailing-bags.co.uk

Plastic Envelopes
Discount Plastic Envelopes is a great source of information on mailing bags and plastic envelopes. Whatever type of mailing bag you need you can find out about it here, along with information on ISO envelope standards.
www.discountplasticenvelopes.com

Polythene Mailing Bags
Find out all about polythene mailing bags at this fantastic website, which tells you all about mailers and why you should use them. Also features a section on eco-friendly mailing bags for those people who want to keep an eye on the environment.
www.polythenemailersdirect.co.uk

Courier Bags
This website is the place to go to find out all about postal sacks, courier bags and polythene mailers. Featuring a great in-depth list of each type of polythene mailer to help you choose the right courier sack for you.
www.couriersacks.com

Bubble Mailers
Bubble mailers is home of bubble mailing bags. Featuring all you need to know on the lightweight, bubble-lined mailers used to protect delicate items, along with eco-friendly alternatives. Check it out today.
www.bubblemailers.org.uk

Mailing Envelopes
If you're trying to decide what sort of mailing envelope you need to meet your mailing needs, then Mailing Envelopes is the website for you. A great place to find out the right size of bag along with details on a range of mailing bags.
www.discountmailingenvelopes.com

Poly Mailers
A great website to buy and find out more about polythene mailing bags. Listing details of a range of poly mailers available, helping you choose the perfect bag for you before you buy.
www.polythene-mailers.co.uk

Cheap Mailing Bags
A treasure-trove of information for anyone looking to buy mailing bags. Containing all the information you need to know on any type of mailing bag and how to get the best discount prices, you need go no further than Discount Mailing Bags.
www.discountmailingbags.co.uk

Plastic Mailing Envelopes
Visit this website to find out more about mailing bags and where to buy them. Featuring loads of information on polythene and eco-friendly mailing bags and a range of other polythene packaging.
www.discountmailingenvelopes.co.uk

Plastic Mailing Bag
A great website for any organisation who posts out a range of stock and wants to do so in a professional manner. Mailing Bags Direct lists common applications for mailing bags, so that you pick the right bag for your company.
www.mailingbagsdirect.co.uk

Mail Order Bag
A great website if you're looking to buy, or simply find out more information about, mail order bags. With details of a range of mailers, from blue opaque mail order bags to high impact silver mailers, this site is mailorder bag heaven!
www.mailorder-bags.co.uk

What the internet says about mailing bags

Security mail bags are only as proper as the film, seals and handling behind them, not the lock fitted to the top. A bag used in a chain of custody requirements to stay tamper-evident after repeated lifting, stacking and sign-off, so the polythene suppliers gauge and melt consistency matter as much as the closure system. If the film is also light, corners split and seals creep below load; if it is also heavy, dead weight beginnings to drag down dispatch efficiency and mixed pallets become awkward to stabilise. Numbered tags and controlled keys assist, nevertheless the proper disadvantage is normally found in the small gaps between despatch, temporary holding and handover, where scuffing or undocumented access can undermine the record.

Plastic mailing bags work optimal when the plain, low-profile outer pack can take proper punishment without adding unnecessary weight. A superb bag is judged by above appearance: the film gauge has to cope with knocks in transit, the seals need to stay closed through sortation, and the surface stop must let packs slide through bagging and label-applied lines without sticking or snagging. On the packing bench, that means less stoppages, less fuss with awkward shapes, and less need to overwrap items that already transport sharp corners. For dispatch teams, the reward is cleaner pallet builds and better use of cubic space. A bag that does its job quietly normally saves more trouble than a heavier one that sees tougher.

Recycled mail bags work well when a package requirements light protection without adding much dead weight to the shipment. A superb padded mailer can cope with knocks and pressure far better than a thin paper envelope, while recycled content reduces demand for virgin material and still gives a tidy outer pack for dispatch. A tougher gauge is less likely to split on sharp corners or awkward shapes, which cuts the risk of returns and client complaints caused by handling damage. Where the bag is sized properly, packing is quicker, the seal sits flatter, and there is less waste on the floor.

Bolsas de plástico para correo mailing polietileno, autoadhesivas, 23 x 30 cm, 50 bolsas Red Mail Bags

Red mail bags speed up packing because the closure is built into the bag itself, so small consignments can transport off the bench without additional tape or strapping. That saves time when orders are stacking up and the line requirements to retain moving at a proper pace. It also assists operatours grasp a more consistent seal, since there is one less loose layer to manage at the point of dispatch. The result is a quicker handover from packing to despatch, with less half-finished parcels drifting into the gross pile.

polythene suppliers mailing bags suit light, flat items because they add protection without wasting postage on additional material. A thin film assists retain the pack slim for sorting and mailing, yet it still requirements enough strength to shrug off scuffing, loose handling and a bit of damp on the journey. The proper test is how the bag behaves once it is filled and sealed, since a weak closure can open in transit and a film that is also light can tear at the seams. Picking the proper gauge avoids that false economy and gives a better balance between handling speed and package security.

A big mailing bag should be sized for the consignment it in reality has to transport, not for empty air. Too much spare space lets the contents shift, which is how corners acquire knocked, seams acquire strained and labels stop up scuffed in transit. That additional looseness also wastes van and pallet space, so less parcels transport per load and handling acquires messier at the depot. Well-chosen gusset depth and gauge assist the bag grasp its shape without becoming stiff or brittle, which retains loading cleaner and reduces snagging at select-face. A bag that fits properly travels better and causes less damage.

Strong mail bags work well when parcels need protection that bends with the load instead of fighting it. A decent polythene suppliers bag or similar flexible wrap can cope with sorting chutes, conveyour contact, and rough handling better than loose paper, which tears fast when packages rub together. Gauge matters because a thin film may save material nevertheless split below pressure, while a properly specified bag retains the contents contained and gives a tidier handover at dispatch and delivery. Closure quality counts also, since a weak seal or poor tie lets items escape amid transit. That makes the bag a practical selection for plenty mixed consignments.

Blue mail bags only do the job properly when the dispatch chain is tight from the beginning. If sacks of mail or parcels sit also long in a vehicle rather than moving through normal handover checks, the problem is not ever only delay. Mixed consignments can stop up together, items may be missed, and any record of who had the load weakens fast. A bag meant for secure transit relies on transparent custody at each stage, so vehicle checks and stock control are not paperwork for the sake of it. When those controls slip, trust in the round slips with them.

White mail bags suit flat products because they give a tidy outer pack without the bulk of a carton. That matters in dispatch areas where CDs, DVDs, printed matter, and similar items need to transport fast through sorting and handling without arriving dusty or scuffed. The white stop also assists consignments see tidy at the receiving stop, which can matter when mixed lots are being checked in or split into stock. A bag of the proper gauge retains the contents together and avoids utilising more board or null space than needed. Used well, it speeds packing and retains the all process tidy.

Courier mail bags rely on tight control of film gauge and seal quality, because even a simple pouch must survive handling that is rougher than it sees. A light bag may save postage and pack time, nevertheless if the polythene suppliers is also soft it can split at corners, scuff on conveyour edges or collapse while cases are being built at the bench. Heavier film brings more puncture resistance and steadier stiffness, which assists when mixed consignments are moving through cages or across loading bays. The proper balance reduces handling damage and retains the closure working as intended, so the bag does its job without being above-specified.

Research & Resources

For more information on mailing bags and the different types available, plus details of how poly mailers are manufactured, please visit:

Goldstork: A free directory listing the best of the web, featuring carefully selected information on and websites specialising in mailing bags.

PlasticBags.uk.com: Free online directory specialising in polythene packaging. Contains useful articles and other resources, including a list of top mailing bags websites.

PackagingKnowledge: Read detailed information about mailing bags on this in-depth website dedicated to polythene packaging.