Momentive RTV31 & RTV9811 Catalyst Red Silicone Rubber Compound 250ml Cartridge

Description

Momentive RTV31 & RTV9811

Momentive RTV31 with RTV9811 Catalyst is a premium-grade, two-component silicone rubber compound formulated for high-performance industrial, electronic, and thermal protection applications. The base (RTV31) is a red, pourable silicone elastomer, while the RTV9811 catalyst provides a controlled room temperature cure with deep-section curing capability.

This compound offers excellent heat stability, flexibility, and adhesion, making it ideal for potting, encapsulating, mold making, and insulation of components exposed to vibration, heat, and environmental stress. RTV31 silicone cures without exotherm and exhibits minimal shrinkage, forming a smooth, resilient, and thermally stable rubber suitable for demanding environments such as aerospace, power generation, and heavy industry.

RTV31 & RTV9811 are widely used for encapsulating electric motors, transformers, and electronic assemblies, as well as for creating molds for low-melting-point metals and thermal insulation coatings.

Uses of the Product

• Potting and encapsulation of electric motors and transformers

• Fabrication of rubber parts and components

• Mold making for low-melting-point metals

• Release coatings for rubber rollers and cast molds

• Thermal and electrical insulation applications

Applications

• Aerospace & Defense Equipment

• Power Generation & Electrical Systems

• Automotive & Industrial Manufacturing

• Molding and Tooling Applications

• Electronic Encapsulation and Sealing

Technical Specifications

Base Compound (RTV31):

• Color: Red

• Consistency: Pourable

• Viscosity: 25,000 cps

• Specific Gravity: 1.42

• Flash Point: >121 °C

• Solubility: Insoluble in water

Catalyst (RTV9811):

• Color: Off-White

• Type: Silicone catalyst mixture

• Specific Gravity: 1.50 g/cm³

• Flash Point: >100 °C

• VOC: 126 g/L

Mix Ratio (RTV31:RTV9811): 100:5–10 by weight
Work Time @ 25 °C: 2 hours
Cure Time @ 25 °C: 24 hours
Cured Properties:

• Hardness: 54 Shore A

• Tensile Strength: 870 psi (61 kg/cm²)

• Elongation: 170%

• Tear Strength: 29 lb/in (5 kg/cm)

• Shrinkage: 0.6%

• Dielectric Strength: 17 kV/mm

• Volume Resistivity: 1.6 × 10¹⁴ Ω·cm

• Useful Temperature Range: -54 °C to +260 °C (short-term +316 °C)

• Thermal Conductivity: 0.31 W/m·K

Pack Size: 250 ml Cartridge

Why Buy From Maisam Dubai

• Supplier of genuine Momentive RTV silicones.

• Technical-grade formulations for industrial, aerospace, and thermal use.

• Proven reliability across UAE, Saudi Arabia, Oman, Qatar, Bahrain, and Kuwait.

• Expert support for RTV mixing, curing, and mold applications.

• Competitive pricing and quick regional delivery.

FAQs

Q1. What is Momentive RTV31 used for?
It’s a high-temperature, two-part silicone compound used for potting, mold making, and insulation.

Q2. What is the catalyst for RTV31?
RTV9811 is the standard curing agent for RTV31, providing reliable deep-section cure.

Q3. How is the curing time controlled?
Cure rate and working time can be adjusted by varying the catalyst concentration.

Q4. What temperatures can RTV31 withstand?
It performs continuously up to 260 °C, and briefly up to 316 °C.

Q5. Can RTV31 bond to metal or plastic?
Yes, with the use of Momentive SS4004 or SS4155 primer, it adheres well to metals and composites.

Q6. Is RTV31 suitable for vacuum or aerospace use?
Yes, RTV31 offers excellent thermal and dimensional stability, making it suitable for aerospace and electrical encapsulation.

Call to Action

Looking for Momentive RTV31  RTV9811 Red Silicone Rubber Compound in the GCC?
📞 Phone: +971 52 167 2252
📩 Email: sales@maisamdubai.com
🌍 Serving: UAE, Saudi Arabia, Oman, Qatar, Bahrain, Kuwai, and Dubai