Beige / Manilla Mailing Bags 14 x 20, 350 x 500 + Lip, Qty 25

A couple of years back, we thought “ Why doesn’t anyone offer a polythene mailing bag in beige or manila “.  So, we introduced our Beige mailing bags or Manilla mailing bags as this colour is known.  Our Beige mailing bags have proved to be quite popular and are much cheaper to buy and post then their paper or cardboard equivalents.   We manufacture the manila mailing bags on site here in the UK, as we do all our mailing bags.  The beige mailing bags are manufactured from a specially developed mono blended polythene film.   The beige mailing bags are glossy on the outside.  We specially treat the film in the manufacturing process so that the glue on the lip sticks permanently as it should and to ensure that the polythene film accepts stamps and your address labels etc.

The beige mailing bags are manufactured at 70mu / micron which is classed as medium-heavy duty film and has excellent puncture resistance and strength.  The beige mailing bags are 100% Recyclable.  If you need bags for items with sharp edges and much heavier in weight then ideally you should be looking at our Heavy Duty Bags.

There are 4 popular sizes of beige or manila mailing bags that we keep in stock for immediate despatch.

Advice & Usage Guide

Use;  The bags will arrive folded or laid flat in an outer Carton.  Once you unpack the mailing bags, simply slide or drop your product into the mailing bag.  The best method for sealing the mailing bag is to then lay it on a flat surface, lip/glue facing up.  Peel off the release tape from the lip which covers the glue and then fold the lip over onto the body of the bag.  We strongly advise that you only fold the lip over to where it naturally wants to fold to and no further.  If you fold the lip right over and seal it, lets say half way down the bag, then there is a chance that the glue will not form a perfect bond and the bags could come open.  We specially treat the mailing bags in the direct area where the lip folds over to as this helps with the bond formed by the glue migrating into the film.

Storage;  We recommend that mailing bags with Permanent Tape are stored at a temperature of 15 - 20 degrees and 50% relative Humidity.  If the ambient temperature falls to less than zero - 5 degrees then you should ensure that you have a means of warming the mailing bags in use.  This because the very cold temperature hardens the glue and so it takes longer to form a bond with the film.

Extra Padding?;  If you feel that you could do with a bit more protection for your products in transit due to them being fragile or delicate, then why not try our bubble inserts with these mailing bags.  You don’t even need to buy the same qty to match as you can pick and use when you feel you need to using bubble lining when shipping your goods!  Alternatively we stock bubble wrap and boxes.

Product Specifications:

Size in mm:   350 x 500 + Lip +/- tolerance

Size in inches:  14 x 20 + Lip +/- tolerance

Opening:   on the 350mm side

Glue:   Permanent Hot Melt x 1 Strip on the lip

Thickness of the Poly:   70mu/70microns/280 gauge

Qty Per Box/Pack:   25 approx

Weight Per Bag:   Approx  25 grams +/-

Environmental Impact:  These bags are 100% recyclable.

Royal Mail Postal Category:   Medium Parcel

Free Sample? -  Sure, just ask.  Telephone 01522 300591, use our Get In Touch page, or use Live Chat.

Beige / Manilla Mailing Bags 14 x 20, 350 x 500 + Lip, Qty 25

  • Availability: In Stock

  • £3.00

    Excluding VAT


  • 40 or more units @ £2.16
  • 100 or more units @ £2.21
  • 200 or more units @ £1.91





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