Silicone Tin RTV
R-1348 (40A Shore)
R-1348 A/ RN 1348 B Two-Part, Tin RTV (Condensation Cure) Silicone rubber developed for its hardness (40A Shore). This system offers excellent temperature resistance (350F), good library shelf life and oustanding physical properties. Applications include molds for: Wax injection, Urethane Foam, Large Molds.
Features:
*Excellent Physical Properties
*Brush-On Cataylist available R-1300th B
*Good Polyester and Urethane Resin Resistance.
Physical Properties of Liquid Material
Color: Off-White / Catalyst Orange
Viscosity @ 25C: 70,000 cps
Shelf Life: 6 months
Typical Properties of Cured Rubber
R-1300TH B (BRUSH-ON CATALYST)
Specific Gravity: 1.15 1.14
Mix Ratio: 100A/ 5B 100A to 10/B
Hardness: 40 Shore A 30 A Shore
Tensile Strength: 650 psi 525 psi
Elongation: 400 % 450
Tear Resistance: 100 110
Mix Instructions
R-1348 A is processed by adding curing agent RN-1348 B. Mechanical properties are dependent on the catalyst level. The addition of 5% catalyst (by weight) has a pot life of 25 minutes and is ready for de-molding after 8-10 hours. After the mold has been removed from the master, it should be left for 24 hours in order to develop its maximum mechanical strength.
Brush-On --R-1300TH B has a quicker gel time—20min with an overnight cure.
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.