Any idea what it consists of? Sand mixed with water-soluble polymer (PVA?)? I'm not sure why sand-PVA would be superior to pure PVA for this application...it may have something to do with their...
Type: Posts; User: СаlеbPetersеn
Any idea what it consists of? Sand mixed with water-soluble polymer (PVA?)? I'm not sure why sand-PVA would be superior to pure PVA for this application...it may have something to do with their...