Kind of frustrating, I used the expanding foam and covered with tile grout. I spent hours painting my rocks now the grout is starting to crack. I used about 4 or 5 thick layers of grout, but still cracking. The weather is starting to change, so I'm guessing the foam is expanding and contracting...
Tomarrow I will be purchasing a few cans of great stuff and was wondering,
1. Is great stuff all its cracked up to be?
2. Is it easy to use?
3. Can it be used for desert cages too?
thank you for any and all help,