Silicone Tin RTV
R-1318 (15A Shore)
R-1318 A/B Two-Part, Tin RTV (Condensation Cure) silicone rubber intended primarily for making highly flexible molds, especially glove molds, and rubber parts. It is also used as a general purpose, high strength rubber.
Features:
*High Stretch with High Tear Resistance.
*Low Viscosity for Ease of Pouring
*Produces Mold with Long Working Life.
*Excellent for Glove Molds
Physical Properties of Liquid Material:
Color: Off-white/GREEN
Viscosity @ 25C: 30,000 cps mixed
Shelf Life: 6 months
Typical Properties of Cured Rubber
Specific Gravity: 1.13
Hardness: 15 Shore A
Tensile Strength: 400 psi
Elongation at Break %: 550
Tear Resistance: 100
Mixing Instructions
R-1318 A is processed by adding curing agent R-1318 B. The addition of 10% catalyst (by weight) has a pot life of 40 minutes and is ready for de-molding after 15 to 24 hours. R-1318 B has a trace of pigment for good dispersion. After the mold has been removed from the master, it should be left for 24 hours in order to develop its maximum mechanical strength. The addition of rapid set will shorten storage life of R-1318 mold. Use Thix 5170 and PE-ESS-5F (Mini Fibers) to create brush-on, low sag, rubber bladders. To quick cure R-1318 A/B add rapid set additive at 4 to 16 drops /pound.
The information and data contained herein are based on information we believe reliable. Each user of the material should thoroughly test any application and independently conclude satisfactory performance before commercializing. Suggestions of uses should not be taken as inducements to infringe on any particular patent.