
Sealants
RTV 123 Black Silicone Adhesive Sealant
SKU: RTV 123
Brand: Momentive
Pricing on request
Specifications
| Part Number | RTV 123 |
|---|---|
| Material | Silicone |
Description
RTV 123 is a single-component black silicone that cures on exposure to atmospheric moisture to a flexible rubber with adhesion to many clean metals, glass and rigid plastics. It bonds and seals in one step, absorbing movement and differential thermal expansion between dissimilar materials while excluding moisture and contaminants. The pigmented grade suits assemblies where the bead should read dark and remain easy to inspect against light substrates.
Angad Aviation supplies this material for purchase. Request a quote for pack sizes, current price and lead time. Documentation is available on request.
- Manufacturer: Momentive
- Part No.: RTV 123
- Availability: for purchase (quote-first)
Frequently asked
How does the black grade differ from a clear one?
The practical difference is appearance: a black bead is easy to inspect on light-coloured parts and blends into dark assemblies. Compare cured properties grade to grade in the manufacturer datasheet rather than assuming they match.
Can RTV 123 be painted over?
Generally no — cured silicone surfaces release most paints. If the area must be coated, apply the sealant after painting, or qualify a coating system specifically intended for use over silicone.
How do I get pricing, pack sizes and lead time?
Angad Aviation supplies this product quote-first. Request a quote with the grade and quantity you need and our team confirms available pack sizes, current price and lead time.




