Vytaflex 45

Urethane rubber offering superior physical and performance properties for casting concrete. Vacuum degassing is not necessary and it cures with negligible shrinkage to a durable rubber that will last in production. Works especially well for casting pigmented|colored concrete. Molds made with Vytaflex Series urethanes will render accurate and uniform colored castings.

Urethanes are adhesive. To prevent adhesion between the rubber and model surface, models made of porous materials (gypsum plasters, concrete, wood, stone, etc.) must be sealed prior to applying a release agent (SuperSeal, One Step - Seal & Release, Sonite Wax). A high quality shellac is suitable for sealing modeling clays that contain sulfur or moisture (water based). Thermoplastics (polystyrene) must also be sealed with shellac or PVA. Non-Porous Surfaces like metal, glass, hard plastics, sulfur free clays, etc. require only a release agent. A release agent (Universal Mold Release) is necessary to facilitate demolding when casting into or over most surfaces. If using as a mold material, a release agent (AquaCon, In & Out II) should be applied to the mold before each casting. 

Technical Data Sheet

Mixing Ratio: 1A:1B by Volume
Viscosity: 12 000 cps
Pot Life: 30 Minutes
Demold Time: 16 Hours
Shore A  Hardness: 45A
Color: Off-White

Weight:
Pint: 2 lb
Gallon: 16 lb
5 Gallons: 80 lb