Black Poly Bags | Coloured Polythene Bags | Heavy Duty 500 gauge | 178 x 178mm

Black Poly Bags | Coloured Polythene Bag| Heavy Duty 500 gauge | 178 x 406mm

Food SafeMade in the UKRecyclableLDPE

100% Recyclable Black Polythene Bag

Bag Size: 178mm wide x 406mm length

Film thickness: 500 gauge film

Transpack Polythene bags can be closed with one of our Impulse Heat Sealers

These very strong, puncture resistant bags are ideal for packaging medical equipment, light sensitive products, security products and food products. A versatile bag that is opaque and burst resistant

Available for delivery in 1-3 days from Transpack

From: £15.0000 for 100
Availability: In stock
Product Code

£18.00 inc VAT

Price for minimum quantity of 100 is £15.00

Available to buy in increments of 100

  • Buy 500+ for £50.20 ( £0.1004 each) and save 33%
  • Buy 1000+ for £92.00 ( £0.0920 each) and save 39%
  • Buy 2000+ for £170.00 ( £0.0850 each) and save 43%
  • Buy 5000+ for £420.00 ( £0.0840 each) and save 44%
  • Our black poly bag is made from from food safe film which is also safe for pharmaceutical and medical applications
  • Bag Size: approx 178 x 406mm
  • Film: 500 gauge/125 micron black recyclable polythene 
  • Tolerances: Please note sizes can vary by a few mm due to manufacturing tolerances - Width +/- 3mm or 2%, Length +/- 6mm or 2%, Gauge +/- 10%

What can I use Black Polybags for?

Our black bags are ideal for packaging your items securely and confidentially, as they are opaque. You can also use them to colour-code products. Because they are made from food safe film, they can hold food products and medical products.

How strong are coloured 500g polythene bags?

At 500 gauge, Transpack Black Polythene Bags are very strong, which makes them ideal for sharp-edged objects or awkwardly-shaped items.

How to measure coloured poly bags bags?

Transpack Polythene Bags are measured as follows: width first, then length. So this bag is approx. 178mm wide by 406mm long.

Size Tolerances: Please note sizes can vary by a few mm due to industry-allowed manufacturing tolerances - Width +/- 3mm or 2%, Length +/- 6mm or 2%, Gauge +/- 10%. This means that the sizing could vary very slightly between batches. If you are concerned please ask for a free sample from our current batch of stock to test your product in.

How can I be sure that I am ordering the right bag?

Double check the measurements against your product, remembering that these bags are flat and if your product has depth that will impact on the width you need and you could well need a wider bag than you think. If you need help give us a call or contact us via the online chat. If you are still not sure which size you need we can send you a sample to test – please email with your request, and don’t forget to give us your address.

What is Transpack's returns policy?

If you do happen to order the wrong bags or you find it is not suitable for your purposes, we will happily accept them back, unused and in a saleable condition. You will need to call us right away on 02380 869999 or email us on and request a returns number (RMA). We will need to receive the bags back within 14 days of when you received them. You will need to send them back at your own cost and once received in our warehouse we will make the refund to you quickly.


More Information
Colour/Finish Black
Food Safe Yes
Made in the UK Yes
Recylable? Yes
Free Delivery No
Length 406mm
Width 178mm

Benefits of using Transpack Black Polythene Bags:

  • Our bags are made from recyclable polythene and should be recycled with other plastic bag collections
  • Black Poly bags are Heat Sealable with an Impulse Heat Sealer
  • These bags are classified as heavy duty, they are strong and ideal for sharp edged products

These bags have resin code 4 and are recyclable. You should check with your local Council to see if you can recycle plastic bags and film with your household recycling. Some Local Authorities will take it away but it is limited.

For those who can't recycle plastic films and bags at home, you can take it to be recycled at carrier bag collection points at the larger stores of most major supermarkets including Tesco, Asda, Morrisons, Sainsbury's, The Co-op and Waitrose.