Is this foam good for cosplay armor?

Yes. LD45 is a common cosplay foam: it is firm enough to hold shape, cuts cleanly and takes heat forming. At 2mm it suits thin plates and detail layers rather than thick structural pieces.

What does the self-adhesive backing stick to?

The adhesive back bonds to clean, dry, smooth surfaces such as plastic, metal and sealed wood. Press it firmly and let it cure; dusty or oily surfaces weaken the bond.

Can I cut and shape this sheet?

Yes. It can be cut with a knife or saw, laser cut, routed on CNC equipment, split, heat laminated and water-jet shaped. Test heat settings first, since the foam softens and can shrink.

Does it absorb water?

No. The closed-cell structure keeps water out, so the foam stays buoyant and works for outdoor and marine padding.

Is 2mm thick enough for padding?

It works for light protection, lining and detail work. For drop protection or thick cushioning, stack layers or choose a thicker sheet.

When is the best time to buy?

There is only one new price listed, $6.50 at Coscom Cosplay Supplies as of November 4, 2026. Watch for stock and shipping costs, which can outweigh savings on a single sheet.

Plastazote LD45 Closed Cell PE Foam Sheet (Self Adhesive Back)

Q: Where is the Plastazote LD45 Closed Cell PE Foam Sheet (Self Adhesive Back) cheapest?

At Coscom Cosplay Supplies, for $6.50, as of our latest check.

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$6.50at Coscom Cosplay SuppliesObserved at 3:17 PM

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Our take on the Plastazote LD45 Closed Cell PE Foam Sheet (Self Adhesive Back)

A 2mm-thick, 2000 x 1000mm sheet of Plastazote LD45 closed-cell cross-linked polyethylene foam with a self-adhesive backing. It is lightweight, odorless, water-resistant and buoyant, and it resists most oils, solvents, acids and alkalis. The closed-cell structure is firmer and tougher than open-cell foam and springs back after repeated impacts. At $6.50 at Coscom Cosplay Supplies as of November 4, 2026, it is the only new price listed, so there is no recent range to compare against.