Tangent Adhesive 7989-V
* qty of 50 Tubes in listing
Tangent Product 7989-V is a solvent-free, UV / Visible light curable adhesive. It is well suited for bonding polycarbonate, PVC, PUR, ABS, and SAN, as well as other dissimilar materials including stainless steel, ceramic and glass. The ability to fully cure this adhesive with visible light facilitates the bonding of substrates containing UV inhibitors.When properly cured, Product 7989-V is clear, tack-free, and possesses good resistance to moisture. This product is well suited for environments of recurring thermal cycling. Product 7989-V cures very rapidly with broad spectrum UV lamps, (320 - 420nm) and monochromatic LED light sources. LED output of 365nm or 405nm is recommended for curing this adhesive. Product 7989-V has passed the testing required for USP Class VI
biocompatibility approval, and is compatible with common sterilization methods including gamma irradiation, EtO, and limited autoclave.
UNCURED PROPERTIES
COMPOSITION Aliphatic Urethane Acrylate / Monomer Blend
VISCOSITY 3000 - 5000cP [Brookfield 25 C., 30 RPM]
APPEARANCE Clear to slight yellow liquid
SPECIFIC GRAVITY 1.1 - 1.3 at 25 C.
REFRACTIVE INDEX, nd20 1.49
FLASH POINT 200 F.
TOXICITY Refer to Material Safety Data Sheet
SHELF LIFE One year
CURED PROPERTIES
SHORE HARDNESS, DUROMETER D 45-55
WATER ABSORPTION, %
24 hour immersion at 25
C < 5%
TEMPERATURE RANGE - 40
C to 135 C
GLASS TRANSITION TEMPERATURE 37 - 47 DSC [C]
COEFFICIENT OF LINEAR EXPANSION
below Tg 165
above Tg 392
LINEAR SHRINKAGE < 3%
Additional Prep Fees May Apply.