A two-component polyurethane potting compound that is totally transparent to normal light and forms an excellent water-resistant barrier around encapsulated components. Specially designed divided cartridges and syringes, with disposable mixing nozzles, provide freshly mixed, accurately placed compound.
Each 250ml cartridge (1x 87-7172) has 2 compartments inside that keep the resin and hardener separated. When the cartridge is compressed in a caulking gun, both resin and hardener are emitted in the correct proportion. Inside the mixing nozzle (87-7174) is a matrix of tubes that mix the resin with the hardener as it progresses, exiting the nozzle completely mixed.
One 250ml cartridge produces 250ml of mixed resin and hardener, ready for use. If not all the 250ml is used at once, a new mixing nozzle (87-7174, available separately) will be required.
For smaller amounts of ready-mixed resin, we recommend the smaller 50ml dual syringe (87-7176 plus nozzle 87-7178).
Form | 2 liquid components | |
Colour | Clear | |
Viscosity @ 23°C | Base material | 300mP |
Hardener | 2000mP | |
Specific Gravity @ 23°C | Base material | 1.05 |
Hardener | 1.12 | |
Mix ratio by weight | 1 base:1.07 hardener | (Mixed by nozzle) |
Mix ratio by volume | 1 base : 1 hardener | (Mixed by nozzle) |
Work life @ 23°C | 25 minutes | |
Shore 'A' hardness | 85° after 48 hours | |
Max. operating temperature | 120°C | |
Electric strength | 15kV/mm | |
Thermal conductivity | 0.3W/m°K | |