Heavy Duty 2 Ply Kraft Paper Mailing Bags

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Heavy duty 2 ply Kraft paper mailing bags ideal for sending heavy items
Quick peel and seal strip to increase packaging speeds
100% recyclable 2 ply 70gsm paper
Choose from three sizes to suit your needs
Sold in packs of 50, priced per pack

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Find this product on page(s) 95 of the general catalogue

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Eco-responisble product protection

For sending heavier items, heavy duty 2 ply Kraft paper mailing bags are the ideal choice. Constructed using 2-ply Kraft paper, the exceptional strength and resilience of the material make these bags suitable for sending heavy or bulky items safely to customers. The 2-ply construction enhances the bag's tear-resistance during transit, providing extra protection to books, electronics, or other substantial goods.

The robust material offers peace of mind that goods will remain secure, reducing the risk of damage or breakage (including surface scratches). Heavy duty mailing bags offer a reliable packaging method for businesses that heavier and more bulky items regularly, as the material can withstand the rigors of shipping and transit.

Designed with a quick peel and seal strip that helps to streamline the packaging process, a simple design feature particularly useful in busy shipping environments. Where time efficiency is crucial, the self-adhesive strip allows for fast and hassle-free sealing without the need for tools, tape and other sealants.

Eliminating the need for manual sealing methods, these bags can significantly increase packaging speeds. This is ideal for businesses with high-volume shipping needs, as it reduces the time required to prepare packages for dispatch, ultimately boosting overall productivity and lowering operational costs.

Product FAQs

How do I use heavy duty mailing bags?

Choose the appropriate size, the bag should be large enough to contain the item without too much excess space, but not so tight that it strains the seams and compromises the effectiveness of the packaging, which is there to protect the item(s) inside
Secure the item, if the item is fragile, consider wrapping it in additional protective materials, such as bubble wrap or tissue paper before placing into the bag. Adding void fill into any empty space left inside of the bag minimises movement and risk of damage to the item(s) inside
Tip: heavy duty kraft paper bags with gussets can be expanded to accommodate bulkier items, be sure to expand the gussets if needed to avoid tearing the packaging by placing a bulkier item inside
Locate the quick peel and seal strip at the top of the bag. Carefully peel off the protective backing to reveal the adhesive
Press the adhesive strip firmly against the opposite side of the bag’s opening to seal it. Run your hand across the sealed edge to ensure it’s securely closed, preventing the bag from opening during transit
Attach a shipping label, and write or print in clear text, the recipient’s address and your return address on the designated area of the bag. If using a printed label, ensure it adheres firmly to the Kraft paper surface

Tip: depending on your shipping requirements, you might need to add a "Fragile" sticker or other special handling labels. Before sending, double-check that the seal is intact and the bag is securely closed, ready for shipping

Weigh and measure the package to determine the correct postage. This can usually be done at home with a postal scale or at the post office
Drop it off at the post office once the package is ready. Alternatively, use a shipping centre, or schedule a pickup with your preferred shipping carrier

How do I choose the correct heavy duty mailing bag size for my parcel?

Measure the length and width of your product and add the depth of the product to each of the dimensions. Add an extra 10 mm to the width to facilitate the insertion of the item into the envelope.

Example: for a product of dimension L 150 x W 100 mm, and a depth of 30mm, choose the mailing bag with interior measurements 150 mm x 215 mm.

What types of items can I ship using heavy duty mailing bags?

After measuring your item, shop the range using our handy product table to see if the item you are sending fits in the mailing bag without damage to the item or the packaging. Typically, mailing bags are suited to flatter, square or rectangularly-shaped items such as books, DVDs and costmetics.

Do heavy duty mailing bags provide enough protection for heavy items?

As these heavy duty mailing bags are made from strong 70gsm paper, they are robust enough for safely sending products to your customers. However, for added protection for particularly fragile or valuable items, adding another layer of packaging such as bubble wrap, is the best way to ensure your products arrive safe and free from accidental breakage on route to their destination.

Are heavy duty mailing bags eco-responsible?

Made from paper that is 100% recyclable, the range is eco-responsible. Naturally lightweight in design, paper mailing bags suited to heavier products will not add extra weight to already heavier and more expensive packages, keeping the cost down too!

Explore RAJA UK's full range of envelopes and mailing bags including eco-responsible envelopes and postal tubes.