Practically nonabsorbent, HDPE won't swell when exposed to moisture. It is denser and more rigid than LDPE, plus it's more chemical resistant.

Practically nonabsorbent, HDPE won't swell when exposed to moisture. It is denser and more rigid than LDPE, plus it's more chemical resistant.

Also known as starboard, this material won’t degrade when exposed to salt water, humidity, and UV light. It’s more rigid than standard HDPE.