[Tracy]

Can I use release spray on a flat fiberglass tray (polypropylene) as a mold for epoxy resin? You know, kind of like one of those fast good trays? Thank you.

[Katherine Swift]

Polypropylene plastic works well for resin molds, however, they need to be of a certain thickness (a couple of millimeters or more) to work as a resin mold. As long as you have that thickness, I think it’s worth a try.

[Tracy]

Thank you, Katherine.

[Katherine Swift]

You bet. 🙂

[Author]

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