Silicone Tin RTV
R-1328 A /R-1324 B Fast Cure (30A Shore)
R-1328 A/ R-1324 B Two-Part, Tin RTV (Condensation Cure) Silicone rubber intended as a General Purpose, high strength rubber primarily for making pourable and brush-on molds, and for highly flexible rubber parts. This systems offers a quick cure time of 6-8 hours.
Features:
*Excellent Physical Properties with High Tear Resisance
*Quick Cure 6-8hours
Physical Properties of Liquid Material:
Color: Off-white/Blue
Viscosity @ 25C: 30,000 cps mixed
Shelf Life: 6 months in closed container
Typical Properties of Cured Rubber:
Specific Gravity: 1.12
Hardness: 28-30 Shore A
Tensile Strength: 425 psi
Elongation at Break %: 350
Tear Resistance: 110
Mix Instructions:
R-1328-A is processed by adding the curing agent R-1324 B. The addition of 10% catalyst (by weight) has a pot life of 45 minutes and is ready for de-molding after 6 to 8 hours. R-1324 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.
Use R1300thB and PE-ESS-5F (Mini Fibers) to create brush-on, low sag rubber bladders—35min Gel Time. To speed cure, add R-1324 B @ 12% for a 3-4 hour de-mold time (15% for 2-2.5 hour de-mold time) or use Rapid Set at 10 drops/lb for a 1 hour cure. **Curing a mold quickly with extra catalyst or rapid set will decrease over all storage shelf life of molds and affect mold rubber properties.
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.