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It seems that nearly everything has an i- or an e- appended to the front these days, but Polybags Ltd earned it's e-credentials by becoming the first UK packaging manufacturer to offer a safe e-commerce website to our customers way back in 1999. Polybags itself has been trading since 1961 and we've seen many marketing gimmicks come and go, but we've stuck to our original name and our original ideals of great service with great prices throughout - so as they say, please don't be fooled by more expensive imitations!

You can read more about Polybags and our history and ideals, at the original (although admittedly now state-of-the-art!) Polybags website
or visit our online packaging shop

We'd love to have you as our customer. We have a no quibble guarantee and an independent Google service-excellence rating of 95% which we're striving to improve every day. We offer a Price-Beater guarantee on many top ranges and we have monthly special offers and customer discounts.

It's worth mentioning that we are manufacturers - so when you buy from us you immediately cut out all the e-middle-men. Faster, cheaper, better.

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Grip Seal Bags

Buy grip seal bags now.

Grip seal bags are a type of self-sealing packaging which generally have two plastic ridges near the top (male and female) that click shut together. Also know as mini-grip bags or resealable bags they offer a perfect packaging solution for when securing content and avoiding leakage or contamination.

Self-sealing bags can do everything a normal plastic bag does but with the advantage of being reusable. Gripper bags, another name for grip seal bags, are manufactured in many different sizes, styles and shapes to suit most needs but can also be custom made to different sizes and have a printed logo on them which is a great way to promote your company, since they will not be disposed after a single use every time the bag is used your logo will be seen.

Listed here is some of the common types of grip seal bags and examples of its use:

Grip-seal bags with write on panels

Write-on panels makes labelling packaging fast and easy using a pen or marker. Ideal for storing small items like bolt, nuts, nails and other things like these that need some sort of identification.

Heavy-duty grip seal bags

These grip seal bags are stronger, thicker and puncture resistant and can be used for storing bulky items.

Antistatic grip seal bags

The pink tint means you are packaging static-sensitive products in an anti-static environment. The anti-static properties will not decrease in strength no matter how many times the bags are opened, closed, or reused.

Specimen bags

Specimen bags are used in hospital and medical labs to transfer specimens and paperwork safely. Document pouches keep paperwork and specimen together.

Slider-grip poly-folio bags

A classic self sealing bag with a plastic slider grip seal closure available in different colours and sizes. A professional packing solution and perfect for carrying paper work, documents or presentations.

The terminology of self sealing bags - an explanation

What is a Gripseal bag?

As discussed briefly above these types of resealable bags are known by many names. The following terms all refer to basically the same type of bag - a resealable bag which has 2 plastic ridges near the top (male and female) that click shut together.

There are many differences in the spelling of the descriptions for these types of self-sealing bags, the main ones are:

  • Gripseal, Grip-Seal or Grip Seal bags
  • Minigrip, Mini-Grip or Mini Grip bags
  • Gripper or Grippa bags

What is the difference between a Gripper bag and a Zipper bag?

A Gripper bag is another term for a Gripseal bag, but a zipper bag is a special type of resealable bag which has a zip rather than clip-close seal. The bags are often used for transporting make-up (particularly good as security bags at airports since they can be see-through) or for holding papers as documents bags.

These are normally used for document bags

  • Zipper bag, Ziplock bag, ZipSeal bag - some kind of sliding zip closure
  • SliderGrip - Like Zipper but with a plastic sliding closure

What is the difference between a Resealable Bag and a Self-Sealing Bag?

A resealable bag is a bag that can be used again, for example, both GripSeal bags and Zipper bags are types of resealable bags. A self-sealing bag on the other hand is a bag that can be sealed without using an additional sealant (such as glue or tape) or without the need to seal the bag using heat to melt and bond the plastic (this is done with a heat-sealing machine known as a 'heatsealer'). As such GripSeal bags and Ziplock bags are resealable bags and are also types of self-sealing bags.

Self-sealing bags

By far the most common type of self-sealing bags is mailing bags; bags used to send documents and packages safely and securely in the post. They normally have a self-adhesive strip that can allow the bag to be sealed, but unlike resealable bags these bags are designed to be ripped open and the seal broken (often as a security feature to guarantee one-time use). As such mailing bags "are" self-sealing bags but unlike Gripper and Zipper bags they are not normally resealable bags (unless specifically engineered to have a reusable adhesive).

Like Grip Seal bags there are a huge range of Mailing bags each designed for specific purposes and the bags themselves are often referred to by different names, most commonly these are:

  1. Mailing Bag
  2. PolyMailer or Polythene Mailer
  3. Plastic envelope or Plastic Mailer
  4. Toptac bag or Top-Tac bag
  5. Sealable bag
  6. Self Seal or Self-Sealing bag

Manufacturers of self-seal bags

Resealable Bags
resealable-bags.co.uk is a free website dedicated to provide quality information and top discounted suppliers of resealable bags selfseal bags minigrip bags.

Discount Self Seal Bags
Find everything you need for self seal bags, information, compare products, prices and stores on self seal bags, resealable bags, mini grip bags and all types of re-closable bags.

Minigrip Bags
Mini Grip Bags is a website dedicated to find the best suppliers and manufacturers of minigrip bags. Learn more about all types and sizes available and buy the right mini grip bag for your solution.

Grip Seal Bags
With a wide range of grip seal bags and minigrip bags, all available at low prices from wholesale suppliers and manufacturers you will buy more and save money.

Slider Grip Bags
Great prices and discounts on mini-grip bags, self-seal bags and ziplock bags. Everything you need to know to help you choose the best type of polythene self-sealing bags to suit your packaging needs.

Ziplock Bags
For all self-sealing packaging needs including ziplock bags and minigrip bags. Choose from a wide range of self-sealing bags sold direct from selected discount suppliers and manufactures.

Self Seal Bags
Wholesale suppliers of polythene packaging including grip-seal bags, zip-lock bags, self-seal packaging and resealable bags.

Specimen Bags
For special purposes self sealing bags visit Specimen Bags.co.uk and find a great range of choices available to suit all needs.

Document Bags
Document Bags.co.uk provides information about document and slider grip bags, also offers selected manufacturers of polythene packaging including self-sealing packaging.

Discount Document Bags
Discount Ducment Bags.co.uk offers professional and affordable packing solutions for carrying paper work, documents or presentations. Buy classic self sealing bags with a plastic slider grip seal closure available in different colours and sizes and sold direct from manufacturers at discounted prices.

Gripper Bags
For all your needs for gripper bags, choose the self-sealing bags solution that suit your needs best from a range of different colours and size.

Other types of Self-Sealing Bags

The following sites deal with bags that are self-sealing but not normally resealable.

Mailing Bags
Mailingbags.co.uk is a specialist supplier of mailing bags, polythene mailers, courier bags and plastic envelopes. Offers discount ranges and high-impact ranges for all you mail-shot and postal packaging needs. Free UK Delivery.

Jiffy Bags
Buy high quality padded envelopes from quality suppliers of a packaging range for jiffy bags, padded jiffy bags and mail lite bags.

Mail Order Bags
At Mail Order Bags you will find out more about Mailing bags, Mailing Envelopes and Plastic Mailers, and also where to buy all these mail order bags for the right price.

Bubble Mailers
To protect your goods when posting make sure you visit Bubble Mailers for a vast selection of bubble mailers and protective packaging, with prices bellow the average and bulk buy options.

Polythene Envelopes
Browse and purchase high quality, discount mailing envelopes from recommended wholesale suppliers of a wide range of polythene mailers.

Research & Resources

For more detailed information on self-seal bags including how they are manufactured and the different types of self seal packaging products available, please see:

Goldstork: interesting directory where best of the web links are put into specific categories to help you find exactly what your looking for. On Goldstork you will also find selected information and links to great websites specialised in self-seal bags.

PlasticBags.uk.com: plastic packaging directory where users and businesses can easily add their packaging product listings for free. Find useful websites about self seal bags and grip seal bags at plasticbags.uk.com

PackagingKnowledge: with articles and news regarding the flexible polythene packaging industry including this article on mini grip and slider grip bags

Eco Friendly Alternatives

Protection of the environment is an important issue and although it often experiences a bad press due to ignorance, packaging made out of plastic and polythene is actually one of the most efficient forms of packaging and the ability to recycle.

Discount Biodegradable Bags
All your questions about alternatives to regular polythene grip seal bags answered - why care about the enivronment, how biodegradable packaging works, which self seal bags are really eco-friendly, plus the best discount prices and deals on environmentally friendly packaging.