Dipping solutions are resorcinol- formaldehyde condensation products used as
adhesion promoters. Reinforcing materials such as rayon, nylon, polyester, aramid, steel
and fiberglass cords are all bonded to rubber with resorcinol or resorcinol based bonding
agent. Nowadays, RFL (resorcinol Formaldehyde Latex) is used for dipping organic
fibers such as polyester, nylon, rayon, or aramid
Some thermoplastic resorcinol based resins can also be used for dipping but they
need additives (like hexamethoxymethylmelamine or hexamethylenetetramine) to
complete the reaction and become thermoset.
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