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Compostable Biobased Mailing Bag C4 | Frosted Biodegradable Postal Bag 230x325mm

Food SafeMade in the UKHome CompostableBiodegradeable


Home Compostable, Plant-Based Mailing Bag with self seal strip

Bag Dimensions: C4 size - 230 x 325mm

Film Type: Biobased 40 micron "milky" film

Semi Opaque postal bags that made from sustainably resourced plant starches (Biobased), and is 100% home compostable. It will biodegrade quickly in water and in a landfill. 

Ideal for sending out light weight magazines, flyers and crafts. The 40mm flap folds over with a peel & stick area + safety warning notice

From: £26.8000 for 100
Availability: In stock
Product Code

£32.16 inc VAT

Price for minimum quantity of 100 is £26.80

Available to buy in increments of 100

  • Buy 500+ for £122.00 ( £0.2440 each) and save 9%
  • Buy 1000+ for £224.00 ( £0.2240 each) and save 16%
  • Buy 2000+ for £432.00 ( £0.2160 each) and save 19%
  • Buy 5000+ for £1,030.00 ( £0.2060 each) and save 23%

Our most eco-friendly Biobase mailing bags are home compostable - they can go in your garden composter for easy disposal at the end of their life.

  • They are made from potato starch and other biologically sourced polymers, are plasticizer and GM free. Biobased carbon-share of the formulation exceeds 30%.
  • These C4 mailing bags are milky-white and slightly silky in texture due to the nature of the material. They are not opaque, but semi-transparent.
  • The film is certified as Compostable according to EN31432, and has achieved the 'OK Compost Home' certification by Vincotte. The bags are clearly marked as Home Compostable and display disposal advice on the flap, along with a safety warning notice.
  • Due to the nature of the material, the self seal flap will NOT make a permanent seal straight away but may require several hours at room temperature before fully cured.
More Information
Colour/Finish White
Food Safe Yes
Made in the UK Yes
Home Compostable? Yes
Biodegradable? Yes
Free Delivery No
Home compostable & Biodegradable Lightweight yet strong Soft feel Safety warning notice
Put these into your Home Composter after use or if you don't have one they should be able to go into garden waste or food waste as the bags are also industrially compostable. The film is also biodegradable but best disposed of in a composting environment.
How quickly will these bags break down?

The film these bags are made from has the EN13432 norm for industrially compostable packaging and the Vincotte OK Compost Home standard which means it has been proven to break down within 12 weeks.

What happens if these bags end up in landfill?

These bags are designed to be disposed of by composting - either at home or in an industrial composter. The good news is that if they do end up in landfill, they won't release anything environmentally harmful into the soil or environment (including methane), and they are biodegradable. However it is not the ideal way to dispose of them and they will take some time to disappear. How long depends on lots of factors so we cannot say .

I’m thinking of switching from plastic mailing bags to these – what are the main differences?

The main difference between a Polythene mailing bag and these mailing bags are that these bags are not clear, and not opaque, but they are semi transparent. They also have a different feel. These bags feel slightly silky. But if you use a light or medium duty mailing bag and don’t need the contents to be concealed you may find that these are a good, eco-friendly alternative. We would always recommend a sample first to make sure they are right for you.

Is the peel off strip on these bags compostable too?

Unfortunately not. Currently we cannot supply the bags with a peel off strip which is also compostable, so it will need to be recycled along with other recyclable Polythene.