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[quote]QUOTE: Originally posted by cp1057 Do these products mentioned give off heat while curing? The reason I ask is that I was planning to model a stream bed by cutting into the extruded styrofoam I use as a scenery base. If so are there any other alternatives? I was thinking of using hobby plaster, working some waves into it then painting it a dark green colour with a gloss topcoat. Charles Hillsburgh On [/quote]Envirotec is safe to use on foam, it may get 10 degrees over room temp. It takes 24 hours to set and is thin as water so leaks are a problem sometimes. Plaster gets hotter when it sets than envirotec. Your method will also work. Try gloss medium from art/hobby stores for gloss. I use it on mountains to simulate melt water and it looks very good. It's water based and works on acrylics and foam. In fact it's made to mix with acrylic paints to make them glossy. Also look at the hobby store (hobby lobby) for gel gloss medium. It comes in different viscousities and could be used for waves. FRED
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