Can I use the Realistic Water on blue / pink extruded foam that has had nothing more done to it than painting? Will it attack the foam?
The main problem here is not that it will ‘attack the foam,’ but that extruded foam contains gases that will release into your water product if not prepped and sealed correctly. It is very important that a base like this is first coated well with a few layers of plaster cloth, being careful that all holes in the cloth are filled with plaster. To be sure all areas are sealed well, and not touching the foam, use a layer of our Flex Paste on top of everything to seal it well.
The main problem here is not that it will ‘attack the foam,’ but that extruded foam contains gases that will release into your water product if not prepped and sealed correctly. It is very important that a base like this is first coated well with a few layers of plaster cloth, being careful that all holes in the cloth are filled with plaster. To be sure all areas are sealed well, and not touching the foam, use a layer of our Flex Paste on top of everything to seal it well. After that, paint this base with an acrylic paint to depict water depth.
