RTV-1: Titiriw condensation reaction. Silicone rɔba a ɛwɔ packaging tube no mu no ne nsu a ɛyɛ hyew a ɛwɔ mframa mu no yɛ adwuma, na ɛma nneɛma a efi mu ba no yɛ ketewaa-mmofra a wɔde yɛ nneɛma (te sɛ acetic acid, ketoxime, alcohol, ne nea ɛkeka ho) ma ɛyɛ crosslink na ɛsa. Nsu a ɛkɔ mu no mu bun no ano hye ne nsu a ɛtrɛw no na mpɛn pii no efi soro kɔ mu.
RTV-2: Titiriw no, nneɛma a wɔde ka ho (catalyzed by platinum) anaasɛ condensation reactions (te sɛ tin catalysis). Sɛ wɔde afã horow A ne B frafra wie a, crosslinking agent no ne akuw a ɛyɛ adwuma no yɛ adwuma wɔ raw rɔba no so wɔ catalyst no dwumadi ase ma ɛyɛ crosslinking network. Wɔnnyɛ ketewa-Molecule by-nneɛma a wɔde yɛ nneɛma (Addtion type), anaasɛ nneɛma kakraa bi pɛ na ɛba (condensation type). Wɔyɛ aduru no nyinaa.