Momentive RTV103 Black Silicone Adhesive Sealant, 10.1 oz Cartridge

Description

RTV103 silicone sealant is a black, one-part RTV adhesive sealant for bonding, sealing, gasketing, and electrical insulation work. It cures with atmospheric moisture at room temperature into a silicone rubber that stays flexible on metal, glass, ceramic, plastic, rubber, and many painted surfaces.

RTV103 silicone sealant Benefits

• One-part cartridge format removes mixing steps and supports direct bead placement.
• Paste consistency helps the sealant stay in place on vertical joints, small gaps, and gasket paths.
• Black cured color suits visible trim, enclosure, and equipment repairs where a dark bond line is preferred.
• Moisture-cure RTV chemistry supports shop assembly, maintenance, and field sealing without heat cure equipment.
• Silicone rubber cure gives parts a flexible seal that can handle movement, vibration, and weather exposure.

Use this cartridge when the job calls for a black RTV bead with good wetting and flexible cure on prepared parts.

RTV103 silicone sealant Applications

• Formed-in-place gaskets on covers, housings, and access panels.
• Sealing electrical enclosures, terminals, and cable exits where a flexible silicone bead is needed.
• Bonding glass, ceramic, metal, and plastic details in repair or assembly work.
• Weather sealing around trim, fixtures, and equipment covers.
• Maintenance repairs where a black paste sealant is easier to control than a flowing liquid.

Surface Preparation And Use

Clean the joint before applying sealant. Remove oil, dust, uncured adhesive, loose paint, and moisture so the bead can wet the surface. For critical assemblies, test adhesion on the actual substrate and finish because silicones can behave differently on plated metals, plastics, coatings, and previously sealed parts.

Cut the cartridge tip to match the bead size, apply a steady line, and tool the sealant while it is fresh. Deep sections cure from the outside inward, so avoid packing thick cavities when a thinner bead will do the job. Keep parts positioned until the skin has formed and the sealant has built enough strength for handling.

Technical Details And Documentation

Published RTV103 data identifies this product as a black one-part RTV silicone adhesive sealant supplied as a paste for high-performance assembly. The broader adhesive and sealant industry offers silicone selection and surface-prep guidance through the Adhesive and Sealant Council. Review the current technical data sheet before production use.

Ordering Help

For related silicone adhesives and sealants, browse Chemical Concepts silicone adhesives. For help matching color, cure type, and cartridge format to your assembly, call (800) 220-1966 or email [email protected].