LENS BOND J-91

Curing Times

Pre-Curing:
Room temperature 22°C (72°F) using a long-wave black light of 15 watts (365 nm) approx. 25 mm above the element ca. 3 - 5 seconds

Full-Curein: Room temperature 22°C (72°F) using a long-wave black light of 15 watts (365 nm) approx. 25 mm above the element. ca. 1 hour

Technical Data

Viscosity: 250 cps to 300 cps
Refractive index: 1,55 at 25°C (full cured)
1,53 (uncured)
Operational Temperature Range: -50°C to +110°C (5 days after full-cure)
Youngs Modul: 1,6 x 105 lb/inch
Water Absorption: 0,19% (5 days after full-cure)
Shrinkage on cure: < 0,3 % pH: 5,5 Specific Gravity: 1,23 Shore D Hardness: 85 - 90 Shipping and Storage: Should be kept from intense light and elevated temperatures. Shelf live: 12 months at room temperature(22°C) Packing Size: 30 g (1 oz) and 500 g (16 oz)