Gerald,
Found this on the Woodland Scenics website...
Two months after pouring a 3/8 inch ...
Two months after pouring a 3/8 inch deep n-scale lake, of roughly 16 inch diameter, several thousand tiny bubbles have formed, completely ruining the effect. Substrate is dense foam insulation board, with the lake bottom well sealed with acrylic paint. Wish I had seen all of the other reports of failed ... Realistic Water projects before wasting so much time, money and material. Remove this stuff from your product line until you get the formula foolproof. ยป hide
- Dwight
Response from Woodland Scenics
Hello Dwight, We are very sorry to hear that you are having this problem with your Realistic Water (C1211). Unfortunately, it sounds as though your foam substrate is out-gassing into your Realistic Water which is causing the bubbles. There is a way to prevent the out-gassing from happening. The instructions recommend sealing a water feature first with Plaster Cloth (C1201) prior to applying the Earth Colors Liquid Pigments or 100% Acrylic Paint. After the area has dried, we then recommend pouring your Realistic Water in 1/8" increments up to a maximum depth of 1/2". You will also want to let each layer cure for 24 hours before pouring the next layer. You can correct this problem by cutting away the Realistic Water, and gently prying it away from the layout to start again. You will then add the Plaster Cloth and start again. If you have any questions, you can contact our customer support Monday-Friday from 8:00 a.m. to 5:00 p.m. CST at 573-346-5555. Thank you for taking the time to send us your comments.
Might this apply to your situation?
