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Mailing bags

Buy best value mailing bags now for a professional postage solution and strong, lightweight, waterproof protection.

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

What do the general public say about silver mailing bags?

Create your Christmas packaging from scratch

Christmas packaging has to do above see festive, because it must still keep safe products through packing, transit, and the last handover. Thin paper bags, flimsy wraps, or poorly chosen board grades can tear at the top of a shift, then leave staff reworking packs and clients receiving damaged stock. A better spec balances appearance with handling strength, whether that means stronger paper carrier bags, tighter seal quality on mailers, or a box that survives stacking on a pallet. When the stop is proper and the building grasps up, the season runs more smoothly and less orders come back bent or split.

Choosing thin-wall cartons instead of silver bubble mailers cuts dead space and improves pallet density, nevertheless it also removes a lot of forgiving cushion from the pack. A mailer can take a fair amount of rough handling because the bubbles spread shocks around, while a slim carton depends much more on board grade, flute condition and how well the contents are held in position. If the item is flat and brittle, even a small crease or a bit of edge crush can turn into a return once the consignment has been stacked, sorted and shifted through a package network. The sensible earn from the carton comes from better cube use, yet that earn only stays proper when the pack is built with proper rigidity and enough restraint to stop movement inside.

Silver mailers earn their place when chilled products need light protection without the bulk of a rigid pack. Their laminated structure reflects heat and slows short bursts of warming, while the low tare weight retains mixed consignments easier to build and less awkward to cube out on a pallet. In the warehouse, that makes a proper contrast because the packs can lie flat between selects, secondary bagging is reduced, and handling stays quicker for staff working a busy line. The earn is practical rather than glamorous: less awkward units to transport, less wasted space, and a better chance of keeping the load stable through dispatch.

Personalised mailers work optimal when they are treated as a controlled part of the sales pack rather than as an afterthought. A mailer that carries the proper name, offer or sample reference can lift response rates because it feels prepared for that client, nevertheless the print, folding and insertion all have to be clean enough to match the message. Thin board or film that scuffs in transit can spoil the first impression, while poor trim or weak glue makes the part feel cost-effective before it is even read. When the format is planned properly, the mailer assists the wider emblem rather than fighting it.

Best match for metallic envelopes

Metallic envelopes need a alternative come from plain paper mailers because the surface, stiffness and stop all affect how they dash through packing lines and through the mail. The metallic layer can improve appearance, nevertheless it may also display scuffing, crease labels and fingerprinting more easily, so handling and storage matter from the beginning. If the gauge is also light, the envelope can split at the corners or around the seam when packed fast; if it is also heavy, folding and sealing become less proper. A well-chosen format gives a tidy presentation without causing stoppages or damage in transit.

Hot promotions in silver bubble envelopes on aliexpress:

Silver bubble envelopes earn their place when a package requirements light weight protection without the bulk of a box. The metallised face can improve scuff resistance and give a tidy presentation, while the bubble layer cushions small items against knocks in handling and amid the courier shuffle. The contrast between a decent line and a poor one often comes down to practical details like film gauge, bubble consistency and the strength of the side seals, because weak welds or thin spots lead to split corners and air loss. A sound specification runs cleanly through packing, retains its shape on a pallet and gives less surprises in despatch, which saves rework at the sharp stop.

Metallic silver envelopes see simple on the shelf, nevertheless the stop can change how they feed, fold and stack through the all pack chain. A silver surface manufactured with heavy print ink behaves differently from one that uses a metallised layer, because the first may stay easier to recycle while the second can bring better shine nevertheless also more handling quirks. Low surface friction can make sheets cling in feeders, and a coating that is also heavy may upset flap formation or crease memory on fast conversion lines. That is why converters see gauge, static and coat weight closely. A tidy appearance only matters if the envelope still runs cleanly in production and arrives prepared for use.

Swollen packs need careful handling because trapped gas can turn a harmless-looking silver envelope into a burst risk on the bench or in the tote. In production, that means checking for bulging before any puncture, isolating the suspect items, and keeping faces away from the release point, since the gas may be unpleasant and the contents can react badly if the envelope is damaged roughly. A tidy repair step is not enough if the root cause is ignored, because more swollen units will retain arriving from the same weak process or storage condition. Good fault segregation and safe disposal save time and reduce the chance of wider pollution.

A silver envelope changes the all feel of a greeting card because the envelope is the first thing handled and the first thing judged. A luxury stop on a light-reflective stock can lift the presentation, nevertheless it also means the material has to be chosen carefully so it does not scuff, crease, or select up fingerprints in packing. Printed and assembled work requirements tidy finishing because any rough edge or weak glue line shows up fast on a superior item. The result is a pack that sees clever on shelf and survives handling better when the envelope and card reach the client together.

Printed mailing bags need the proper gauge and film structure before the branding even matters, because a bag that splits or scuffs in transit fails the job at the first hurdle. Good polythene suppliers requirements enough toughness to take knocks from conveyours, cages and van loading, while still staying light and flexible enough to pack fast on the line. Even thickness matters, since thin spots can stretch, print badly and become weak points when the bag is sealed or handled. A tidy-looking package starts with consistent material, and that normally saves complaints later.

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.

How to use a mailing bag - 12 easy steps

  1. Consider the contents that you want to post and what kind of mailing bag they require (e.g. standard economy, high security, heavy duty or bubble-lined)
  2. Once you have chosen your type of mailing bag, consider what size mailing bag you need
  3. Look at the contents that you want to post and calculate (or estimate) their size: height, width and breadth
  4. Choose the size of mailing bag that is slightly bigger than the contents of your post
  5. Write the address on the outside of your chosen mailer (this is easier when the bag is flat than full!)
  6. Place your mailing bag on the table and the contents of your post alongside it
  7. Ensure the contents are aligned in the same direction as the mailer
  8. Open the mailing bag, taking care not to peel the label off the adhesive strip (yet!)
  9. Carefully place the contents in the bag, ensuring not to snag the side of the bag as you place them in
  10. Peel off the adhesive label
  11. Fold the flap over and seal the bag shut
  12. You’re done - ready to go to the post office or franking room to send your mail out on its merry way

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

Advice from the web on silver mailing bags

A festive belly band is a practical method to give existing cartons a seasonal feel without changing the all pack. By wrapping printed board or paper around a normal box, a business can add Christmas graphics while keeping the main pack format unchanged, which saves time on artwork, machining and approval. It also avoids disruption on the packing line, because operatours can continue utilising the same cartons and simply add the band at the stop. That makes seasonal packaging easier to trial, easier to store, and easier to drop once the peak period is above.

Silver bubble mailers earn their place when small products need protection without the bulk of a carton. The outer silver film gives a tougher face against scuffs and light abrasion, while the bubble layer takes the knocks from conveyour transfers, mail bags and cage movement that would otherwise label the contents. That combination assists maintain a low tare weight and sensible cube, so flat items can travel with more cushioning than a plain envelope enables without wasting space on the pallet or in the van. The stop also conceals minour grime and compression labels, which retains a consignment looking presentable after a rough journey and reduces avoidable complaints at receipt.

Silver mailers make sense when package weight matters nevertheless a plain paper solution would not stand up to rough handling. A sound spec uses a controlled polythene suppliers web that retains gauge even across the sheet, because thin spots are where punctures and split seams start after belt transport or cage loading. The metallic stop also has a job to do beyond appearance, since it assists conceal the contents and masks surface scuffing that can make stock see tatty before delivery. When the material is held within a recoverable polythene suppliers stream, the pack stays practical for sorting and recycling, so the result is a mailer that protects the consignment without adding avoidable bulk.

Personalised mailers work optimal when variable data stays crisp at speed, because poor text quality makes a pack see cost-effective before it even leaves the line. Laser-manufactured cut-sheet work can handle A5 through to SRA3 sizes without drifting off register, so names, codes and address details stay legible across a mixed dash. That matters in fulfilment, where mailers may be packed, checked and dispatched one after another, and any blur or mismatch slows the floor down. Consistent print also assists when secondary packing forces several styles through the same carton or pallet. Clean variable text gives the mailbox a professional stop and cuts the risk of rejection.

Faulty metallic envelopes can create trouble long before they reach the client. A glossy C5 envelope sees clever on the counter, nevertheless if the coating, glue line, or cut size is off, the problem shows up in machine feeding, hand insertion, or sealing. Metallic finishes can be less forgiving than plain white stock because the surface may resist ink, select up scuffs, or behave oddly below pressure in a warehouse or dispatch area. If the batch is being sold as faulty, the likely issue is not only appearance nevertheless also pack consistency, so checking suitability for the intended use matters. A tidy outer see means small if feed reliability or seal quality drops apart in use.

C4 Metallic Silver Bubble Envelopes - 100 Bags

Silver bubble envelopes are a sensible selection when flat products need more protection than a plain paper mailer can offer. The outer metallic film assists resist scuffing, while the bubble layer cushions printed sheets, catalogues and other bend-sensitive items against edge knocks and small punctures in package networks. A clean peel-and-seal closure also gives better seal quality than loose tape on a thin bag, particularly when mail is packed fast or pushed into secondary packing. The silver stop can make stock easier to spot at a busy select-face also, so the proper bag is grabbed without slowing despatch. That mix of protection and handling control makes them a practical option for products that must arrive tidy as well as intact.

Metallic silver envelopes can see simple on a sample sheet, yet they often create trouble once printing and converting start. The silver surface normally behaves less like normal paper and more like a sealed or coated material, so ink grip, varnish laydown and die-line accuracy all need closer control. If the stop is manufactured through metallised film or a pigmented coating, the surface can be slippery and unforgiving, which makes heavy coverage and tidy registration harder to maintain. That means the job requirements proper testing on press, not only a fast sign-off from design. A superb specification retains the visual effect while reducing rejected sheets and makes the envelope far easier to dash through production without constant adjustment.

Clonlara Silver Envelopes

Silver envelopes need a stop that sees clever straight off the line, because any scuffing, finger marking, or patchy coating is apparant on a reflective material. The print or metallic layer has to transport cleanly through converting, with careful control of gauge, crease depth, and sealing so the envelopes open and close without splitting at the fold. In packing and dispatch, low-friction handling matters as much as the see, since stacked packs can select up rub labels if the film or surfaced board is not enclosed and stored properly. That sort of product rewards careful production discipline, because poor handling shows immediately.

Silver Envelope Locket

A silver envelope works optimal when the stop and building are matched to the job, not only the see. A bright metallic surface can lift a presentation pack on shelf, nevertheless coating selection, board grade and conversion method still matter because poor cutting or rough folding leaves exposed fibres and weak connects. If the envelope is going through secondary packing, the surface also has to resist scuffing and select-face handling without losing its appearance. Seal quality, crease control and a clean edge determine whether the pack feels superior or merely shiny. A superb specification retains the item looking sharp from line to dispatch.

Printed mailing bags with twin adhesive strips cut handling losses by giving the same pack a second life on the return journey. The first seal has to stay firm through sortation, cage loading and contact with pallet edges, which means peel strength matters as much as fast packing. If that closure fails, the package opens at the gross point and creates rework, delays and complaints. A superb format also transports cleanly through the pack bench, so operatours spend less time changing materials or checking for split consignments. When the bag survives the outward trip and still has a usable return seal, the all process runs with less waste and less interruptions.

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.