Superior Product Protection
RAJA heavy duty bubble envelopes protect heavier and more delicate goods with a 75gsm puncture-resistant white paper outer and a 90 micron bubble lining. The thicker bubble layer of these heavy duty bubble mailers cushion against shocks and impacts, and welded side seams stop the envelope bursting under pressure. A high-slip additive in the bubble layer lets products slide in quickly, which speeds up packing. The smooth white paper takes handwriting and labels for clear identification, and a peel-and-seal strip closes each envelope with no separate tape. Available in nine sizes ranging from 150 x 215mm to 520 x 660mm (opening width x internal height), corresponding to multiple mail formats across large letters, small parcels, medium parcels and large parcels.
Sold and priced per pack and delivered sealed in cardboard boxes.
Where do heavy duty bubble bags work best?
Heavy duty bubble bags suit despatch areas that need stronger cushioning and quick packing. These heavy duty bubble mailers carry goods through postal and courier networks with more protection than a standard padded envelope.
- E-commerce orders, where the 90 micron bubble lining cushions smaller goods against shocks in transit.
- Retail fulfilment, where the smooth white paper outer gives a clean surface for labels and neat presentation.
- Delicate or heavier items, where the 75gsm puncture-resistant paper adds strength over a standard padded envelope.
- Awkward shapes, where the high-slip bubble layer lets products slide in without snagging.
Not for
- Liquid, greasy or wet products. The outer is paper based, so use a waterproof mailing bag or containment packaging.
- Items needing crush resistance. Choose a cardboard box for rigid protection rather than flexible cushioning.
- Very sharp items. Add edge protection or a stronger outer pack, as sharp points can pierce bubble-lined packaging.
Specifications
- Colour: white
- Outer: 75gsm puncture-resistant paper
- Lining: 90 micron bubble
- Side seams: welded
- Packing aid: high-slip additive in the bubble layer for easy insertion
- Surface: smooth, for writing and labels
- Closure: peel-and-seal adhesive strip
- Sizes: nine sizes from 150 x 215mm to 520 x 660mm (opening width x internal height)
Choose the right bubble envelope
Heavy duty bubble bags are ideal when goods need a stronger paper outer and a thicker 90 micron bubble lining.
- Choose RAJA heavy duty bubble envelopes as extra strong bubble envelopes with a 75gsm paper outer and 90 micron lining for delicate or heavier items.
- Choose Jiffy Mailmiser bags when you want a heavier 110gsm paper outer with a 32 micron lining for overseas post.
- Choose Jiffy AirKraft postal bags when you want a lighter 70gsm bag with a 32 micron lining for general despatch.
- Choose metallic bubble envelopes when contents need a waterproof plastic outer rather than paper.
FAQs
Can I write directly on these envelopes?
Yes. The smooth white paper surface accepts handwriting and labels, which helps teams mark, sort and identify parcels.
Do the envelopes need tape to close?
No. Each envelope has a peel-and-seal adhesive strip for secure closure without the need for additional tape.
What makes them heavier duty than a standard padded envelope?
They combine a 75gsm puncture-resistant paper outer, a 90 micron bubble lining and welded side seams for more durability in handling and transit.
Also useful
- Bubble envelopes for comparing padded mailers by size, finish and protection level.
- Jiffy bags for the wider padded and paper mailer range.
- Labels for parcel identification on the smooth white paper surface.
- Mailing bags for larger soft goods which do not require the extra cushioning protection.
