
Sealants
RTV 615 Optically Clear High Refractive Index Encapsulant
SKU: RTV 615 CLEAR
Brand: Momentive
Pricing on request
Specifications
| Part Number | RTV 615 |
|---|---|
| Material | Silicone (2P Addition cure) |
| Compliance | ASTM E595 |
Description
RTV 615 from Momentive is a two-part, addition-cure silicone that cures to an optically clear rubber with a high refractive index. It is used to encapsulate and pot electronic and optical assemblies, including where outgassing matters; it is listed against ASTM E595. Mix base and curing agent as the data sheet states.
Angad Aviation supplies this part with full traceability and documentation — request a quote for current pricing, pack sizes and lead time.
- Brand: Momentive
- Part No.: RTV 615
Frequently asked
What can stop an addition-cure silicone from curing?
Platinum-catalysed silicones can be inhibited by contact with sulfur, tin compounds, amines and some rubbers or tapes. Test unfamiliar surfaces first.
What does ASTM E595 mean for this product?
ASTM E595 is the standard test for outgassing of materials in a vacuum, used to screen materials for space and vacuum applications. The data sheet reports the results.
How do I get pricing and lead time?
Angad Aviation supplies this part quote-first — click Request a Quote and our team responds with current price, available pack sizes, and lead time. Parts ship with traceability and, where required, an authorized-release certificate you can verify online via Angad Verified.
From other manufacturers
Other manufacturers we source in Sealants. Not a statement of interchangeability — send us your part number and we will confirm what fits.

















