great stuff technique help

[sawzall]

I am sure others are having some of the same questions.

1. can plain gap filling great stuff be painted and used in a dry vivarium such as leopard gecko without a sealer? If you carve it and break the "skin" does it have to be sealed? is modge podge ok for a sealer?

2. can the black great stuff be used without grout or anything in a submerged environment?

3. when using the styrofoam and grout what kind of grout? sanded or unsanded? does brand matter?

4. will great stuff stick to waxpaper? can it be molded in the first few minutes? can something be pressed into it as it is being sprayed to make cavities?

[raymondsmindjob]

1- in a dry terrarium, you could use great stuff w/o sealer. However, a terrarium is rarely very dry if it has live plants unless it is a desert type
2- yes plain black great stuff is fine underwater
3- grout type doesn't really matter as long as it contains no mold blockers, but I think grout always needs to be sealed
4- i don't know if it sticks to wax paper, but good luck molding it in the first few minutes, as it is extremely sticky and when you try to mold it is pulls apart like the inside of a hot cheese stick. I don't know what you could press into it to make cavities, but I bet it would work if the item you used was wet, but most people who want planters or something in their great stuff areas use a small container to make a planter, like the lid to the great stuff can. I personally use restaurant style desposible ramikens.