Chem-Set RTV11 Silicone Rubber With Catalyst

Description

RTV11 silicone rubber is a general-purpose two-part elastomer for mold making, potting, gasketing, and flexible encapsulation work where you need room-temperature cure and dependable heat resistance. This Chem-Set listing covers the RTV11 base with catalyst so shops can cast parts, protect electronics, and build reusable molds without moving to a heat-cure system.

Key Features and Benefits

• Room-temperature cure lets maintenance, lab, and fabrication teams cast or encapsulate parts without ovens.
• Two-part system gives you control over batch size for one-off repairs or repeat bench work.
• Low-viscosity RTV11 base flows into corners, lettering, and fine surface detail.
• Silicone chemistry stays flexible after cure, which helps on parts that see movement or thermal cycling.
• Continuous service to 400 F supports hot-process fixtures, seals, and protective potting jobs.
• Solvent-free formulation helps when you want less odor and fewer shrink concerns during cure.

Common Applications for RTV11 silicone rubber

• Reusable molds for plaques, cast details, prototype parts, and shop fixtures.
• Potting and encapsulation of electronic assemblies, sensors, and small control components.
• Formed-in-place gaskets and seals for covers, housings, and service panels.
• Release-friendly molds for urethanes, waxes, and other cast materials.
• Flexible protection around wire exits, terminal points, and irregular cavities.
• General maintenance casting where a room-temperature silicone is easier to handle than heat-cure compounds.

Compatible Materials

• Electronic housings and component cavities that need flexible potting.
• Metal, glass, and ceramic surfaces when the proper primer is used.
• Pattern surfaces used for silicone mold making and part reproduction.
• Wood, composite, and plastic fixtures where a flexible mold or seal is needed.
• Low-stress sealing applications where cured silicone movement is an advantage.

RTV11 silicone rubber Technical Specifications | Property | Value |

| -| -|
| Product type | Two-part general-purpose silicone elastomer |
| Cure system | Base compound with DBT catalyst |
| Cure condition | Room-temperature vulcanizing |
| Color | White base compound |
| Typical viscosity | 11,000 cP |
| Continuous service temperature | -65 F to 400 F (-54 C to 204 C) |
| Short-term heat exposure | Up to 500 F (260 C) |
| Formulation note | Solvent free, flexible after cure | ### Packaging and Ordering

Order this kit when you need a pourable silicone for molds, encapsulation, or flexible sealing work on the bench or in maintenance. Browse Chemical Concepts encapsulants and potting compounds for related protection materials, and review the published RTV11 technical data at DigiKey’s RTV11 datasheet listing before approving the job spec.

Need Help?

If you need help with cure method, mold-release compatibility, or potting depth, call (800) 220-1966 or email [email protected].