the sand is from any garden center, sandpit sand is fine.
I made a smaller one not long ago and once i coated it in pondtite twice I mixed 1cup of pondtite with 3 cups of sand and made it into a thick paste and smeared it on sections of foam to give a contrast in texture.
If you want to do large sections work in little sections, little bits at a time or you run the risk of bits drying and the sand not sticking.
I made a smaller one not long ago and once i coated it in pondtite twice I mixed 1cup of pondtite with 3 cups of sand and made it into a thick paste and smeared it on sections of foam to give a contrast in texture.
If you want to do large sections work in little sections, little bits at a time or you run the risk of bits drying and the sand not sticking.