Description

Silicone Rubber, Methyl RTV 107 is a one-component, room-temperature vulcanizing (RTV) silicone elastomer based on a methyl-terminated polydimethylsiloxane (PDMS) backbone. This material is valued for its excellent sealing, bonding, and insulating properties, curing upon exposure to atmospheric moisture to form a durable, flexible rubber. It is essential for manufacturers and maintenance professionals in the electronics, automotive, and appliance industries requiring reliable, in-situ gasketing and protection. The product is supplied as a ready-to-use paste with good adhesion to many substrates.

Application

• Electronic Potting & Encapsulation: Protecting sensitive circuits, sensors, and components from moisture, dust, vibration, and thermal shock.
• Form-in-Place Gaskets (FIPG): Creating custom seals on-site for automotive engine covers, transmission housings, and industrial equipment enclosures.
• Adhesive & Bonding Agent: Bonding metals, glass, ceramics, and many plastics where flexibility and environmental resistance are required.
• Mold Making & Prototyping: Crafting flexible molds for casting resins, low-melt metals, plaster, and other materials.
• General Sealant & Caulk: Sealing joints, seams, and gaps in construction, HVAC systems, and marine applications against water and air infiltration.
• Insulating Coating: Providing electrical insulation for wires, connectors, and bus bars.
• Maintenance & Repair: Quick fixes for leaks, cracks, and insulation breakdowns in industrial and domestic settings.

Basic Information

Product Name	Silicone Rubber, Methyl RTV 107
CAS No.	63148-60-7
Molecular Formula	(C2H6OSi)n
Molecular Weight	Varies (Polymer)
Synonyms	RTV-107 Silicone; Methyl RTV Silicone Rubber; One-Component RTV Silicone; Acetoxy-Cure Silicone Sealant; Polydimethylsiloxane, hydroxy-terminated, crosslinked; Room Temperature Vulcanizing Silicone; RTV-1 Silicone; Acetic Acid, Siloxanes and Silicones, Me, Me, Me, Acetoxy-Terminated
EINECS	Contact for details

Quality Control

Our Methyl RTV 107 silicone rubber is manufactured under a strict quality management system. Each batch is tested for key performance parameters including viscosity, cure time, tensile strength, elongation, and shore hardness to ensure consistency and reliability. Certificates of Analysis (COA) detailing these specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). Keep away from heat, sparks, and open flame. The product is moisture-sensitive; ensure the original container is sealed when not in use to prevent premature curing.

Specification

Item	Specification
Appearance	White, paste
Viscosity (25°C)	Contact for details
Specific Gravity (25°C)	~1.03 g/cm³
Tack-Free Time	10 - 30 minutes
Cure Time (24h)	~3 mm/24h
Shore A Hardness	~25
Tensile Strength	Contact for details
Elongation at Break	> 400%
Service Temperature	-60°C to 200°C
Dielectric Strength	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.