

Application:
Rubber adhesive RA-65 is a methylene donor in m-methyl-white rubber bonding system (HRH), which is used to enhance the bonding strength between vulcanized rubber and skeleton materials with various methylene receptors. Meanwhile, the tensile strength, tensile modulus and hardness of vulcanized rubber will be enhanced.
Packaging:
25kg plastic woven bag or kraft paper bag.
Storage:
Keep container tightly closed in a cool, well-ventilated place. The recommended maximum storage life is 12 months when stored under normal conditions.
Compared with HMT, the rubber adhesive RA-65 does not release ammonia, has better scorch resistance and does not corrode copper-plated steel wire.
Rubber adhesive RA-65 is non-irritating to the skin, has good fluidity and lower dust characteristics;
Rubber adhesive RA-65 can achieve rapid dispersion in rubber;
65%Hexamethoxymethylmelamine liquid resin on inert carrier (hydrated amorphous silica);
KeyChem's Rubber Adhesive RA-65 does not release ammonia and exhibits no corrosive effect on brass-coated steel. It delivers superior scorch protection compared with hexamethylenetetramine and features outstanding humid aging resistance.
KeyChem's Rubber Adhesive RA-65 possesses better thermal stability than other Rubber Adhesive RA-65 and disperses more readily.
KeyChem's Rubber Adhesive RA-65 has low dust generation, causes no skin irritation, and will not agglomerate under low-temperature conditions.
| Specification |
| Appearance white powder |
| Ash/% 29.0~35.0 |
| Moisture (azeotropic distillation method)/%≤ 4.0 |
| 44μm fineness /%≤ 0.3 |
| Free formaldehyde/%≤ 0.1 |
| Combined with formaldehyde/% ≥ 40 |