2 thoughts on “Plastics Guide”

  1. “Proper” G10 is an epoxy based laminate. If the GPO is red its probably a phenolic resin laminate (although they say its polyester but then it would not have the temp properties they say). Either way they are just as good as each other as a reinforcement in composite boats unless you are a stickler for like resins. Peter

  2. I used and have been around GPO-3 and sometimes I used consumer kitchen cutting board in some applications. I can’t tell if used outdors under UV will last. It is heavy for a plastic. There are some plastics that resist both heat and corosion (oil and caustic) similar in weight to GPO-3 again UV unknown.
    If you are looking for hull material the best I’ve seen and used was in Pelikan Kayaks. I threw that sucker down ravines, rocks, towed it sand with very limited scratche or dents and it sat in the sun on the deck.

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