Nneɛma ahorow pii wɔ hɔ a wɔde siw ano: silicone a wɔde hyɛ mu, polyurethane a wɔde hyɛ mu, polysulfide a wɔde hyɛ mu, acrylic a wɔde hyɛ mu, anaerobic a wɔde hyɛ mu, epoxy a wɔde hyɛ mu, butyl a wɔde hyɛ mu, neoprene a wɔde hyɛ mu, PVC a wɔde hyɛ mu, ne asphalt a wɔde hyɛ mu.
Sɛ worepaw sealants a, susuw nneɛma a edidi so yi ho: 1. Tensile strength (force at break/cross-sectional area); 2. Bond ahoɔden (ahoɔden wɔ break/bonded beae, a substrate asɛe nka ho); 3. Elongation wɔ break (tenten wɔ break/mfitiase tenten); 4. Tumi a ɛko tia-onyin; 5. Sɛnea ɛte (matte wie, nneɛma nketenkete, ahurututu); 6. Shape retention (hama biara nni hɔ, ɛnyɛ sagging wɔ vertical surfaces so); 7. Nkwa a wɔde sie; 8. Bere a wɔde sa yare.
Su pa anaa bɔne biara nni ahwehwɛ a wɔde hyɛ mu a efi awosu mu; adwumayɛ ne bo hyia, na nea eye sen biara a wobɛpaw ne nea ɛfata w’ahiade. Nea ɛto so abien no, susuw sɛnea ebetumi agyina pintinn ne sɛ ebia dodow no dɔɔso anaa, a ɛsɔ nea ɔyɛe no hwɛ. Sɛ sealant no dodow sua sen dodow a wɔaka no (hyɛ no nsow: eyi yɛ volume; eyi yɛ asɛm a anibere wom wɔ sealants ho) a, yi sealant no fi hɔ ntɛm ara. Nnwumakuw a ɛtete saa no wɔ aguadi mu nneyɛe a ɔhaw wom, na ɛnyɛ nea ɛda adi sɛ wɔn nneɛma no bɛyɛ nea ɛkorɔn. (Eyi nso kyerɛ ɔhaw ahorow, na ɛkyerɛ sɛ wonni ɔkwan a wɔfa so yɛ nneɛma no so denneennen.) Sɛ wɔde di dwuma kɛse a, ɛsɛ sɛ wosusuw sɛnea ade a wɔde hyɛ mu no betumi agyina pintinn no ho.