Hey Matt,

Yes, I am well aware of the use of polyurethane foams and polyester resins(among many other composites) in exhibit construction. Unfortunately, for most peoples' situations here on this forum, these composites are out of the question, given their vile and harmful(even potentially fatal) nature. Polyester Resins are no fun, and require the use of respirators, ample ventilation, and sometimes even air-fed respirators/breathing aparati.

I think my brain may be fried due to years of exposure of these harmful agents, even with the use of a respirator.. I can say that when working with these chemicals and composites, even with the use of breathing aparati, I was prone to respiratory infection/chronic coughing, and breathing difficulties.

I would not recommend the use of these chemicals for use by the everyday hobbyist/keeper; especially inexperienced people. These are serious chemicals not to be reconned with by just anyone, which is why I recommend the cement approach to faux rock construction to private hobbyists. While noticeably heavier, working with cement is much safer and versatile than polyester resins and such; as well as allowing for a broader range of error.

Cheers,

Bob
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Treemonitors.com

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