The Science Behind Bubble Mailer Cushioning
The physics behind bubble mailer protection: how trapped air keeps your items safe.
The physics of bubble cushioning
Quick answer
Bubble cushioning works by trapping air in sealed chambers that compress on impact, converting kinetic energy into heat and pressure rather than transmitting it to the contents. Larger bubbles (25mm) absorb more energy per bubble, suitable for heavier impacts. Smaller bubbles (10mm) provide more consistent coverage for lighter items. Film thickness determines puncture resistance. Multiple bubble layers multiply the protection.
Key factors in protection
25mm bubbles compress further, absorbing more force.
10mm bubbles create a denser cushioning surface.
Thicker film resists sharp edges better.
Two layers provide significantly more cushioning than one.
Specs: specifications or testing.
Optimising protection
Match bubble size to product weight and fragility. Light items need small bubbles for coverage. Heavy fragile items need large bubbles for energy absorption. Film thickness matches puncture risk. Right-sizing the mailer ensures bubbles contact the item on all sides.
Scientifically cushioned mailers
Bubble mailers from ProcuraPack.
Browse bubble mailersFrequently asked questions
Trapped air compresses on impact, absorbing energy before it reaches the item.
Yes, larger bubbles absorb more energy. Smaller bubbles provide more even coverage.
Yes, thicker film resists puncture better.
Significantly. Multiple layers multiply the cushioning effect.
25mm for maximum energy absorption on fragile or heavy items.
Part of our guide
Product Guide: Bubble Mailers
Expert guides on bubble mailers and cushioned shipping envelopes for safe, efficient deliveries.
Browse all guides →
