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Joybuy£2.59Visit shop Triplast Red A4 Envelopes Board Back Manilla Pack Of 10
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Amazon£13.59Visit shop Triplast 50 x A4 C4 Manilla Hard Board Back Envelopes (324x229mm) - Cardboard Backed Mailers with Peel & Seal Strip - Rigid Do Not Bend Envelopes for Mailing Posting Shipping & Storing Documents
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The Triplast A4 Hard Board Back Envelopes are designed for professionals and individuals who need to mail certificates, contracts, photographs, or artwork that must remain flat and crease-free. These envelopes offer a high level of protection through a rigid 1000-micron board back, though they are specifically sized for A4 documents and cannot accommodate thicker boxed items or bulky goods.
| Brand | Triplast |
|---|
No, they are made of kraft paper and are intended for standard postal transit. They should be protected from rain.
No, these are specifically sized for A4 documents. An A3 document would need to be folded, which defeats the purpose of the board back.
It is pre-printed on the envelope to assist with shipping, but it does not guarantee postal worker compliance in all cases.
The board back is 1000 microns thick, providing a high level of rigidity for your documents.
Yes, they are made from 100% recycled material and can be recycled in most paper/cardboard recycling streams.
Ensure the surface is free of dust or debris and press firmly across the entire strip for 5 seconds.
Ensure the contents are fully centered; if the document is very thin, add a piece of stiff card inside to increase overall rigidity.
Using the Triplast A4 Hard Board Back Envelopes is straightforward. Ensure your document is aligned centrally before peeling the adhesive strip. Press the flap firmly across the entire width of the envelope to ensure a complete seal. While the envelopes are durable, store them in a cool, dry environment to prevent the adhesive strip from degrading or the paper from absorbing moisture. These envelopes are compatible with standard A4 documents and smaller prints, but they are not intended to be used with items that bulge, as this may compromise the seal or cause the board back to deform.
