Vertical Garden from Free Recycled Styrofoam

Step 4 Mix your foam coat

The foam coat containter has instructions on how to use foam coat, but basically you just put water in the bottom of your mixing container- could be a tupperware containter - add some boost or bounce for waterproofing (put about as much boost/bounce in the container as you did the water – 1:1), then add the foam coat. Then mix it all together. You can either use a paintbrush or a putty knife/drywall knife.  You may just want to experiment with consistencies. If you go thick, it can create a cool effect and fill holes and cracks well. If you go thin, it’s easier to sand and goes on smoother. If you dilute it with Boost more than water, you can thin it without it getting weaker. You can optionally add Grit here which gives the foam a stone effect, but will make it harder to sand.

Mixing foam coat