Momentive Siltrust RTV8111/RTV9891 Silicone Rubber Compound

Description

Momentive Siltrust RTV8111 RTV9891

Momentive Siltrust RTV8111/RTV9891 Silicone Rubber Compound Momentive RTV8111, paired with RTV9891 Catalyst, is a two-part silicone elastomer system engineered for use in electronics, aerospace, and defense applications. The compound provides excellent mechanical strength, electrical insulation, and thermal stability, making it ideal for potting electronic modules, protecting electrical connectors, coils, and critical aerospace components.

Key benefits include:

• Electrical insulation with dielectric strength of 500 V/mil (19.7 kV/mm).

• Mechanical resilience with 350 psi tensile strength, 160% elongation, and Shore A hardness of 45.

• Thermal endurance, maintaining flexibility from -54 °C to 204 °C (-65 °F to 400 °F).

• Non-corrosive formulation safe for metals including copper.

The RTV8111 base compound is easily pourable, while RTV9891 Catalyst is a viscous curing agent that ensures consistent room-temperature vulcanization. Together, they provide a pot life of 0.5 hours and full cure in 24 hours.

This compound is solvent-free, minimizing environmental concerns, and offers strong adhesion to various substrates when used with a suitable silicone primer (such as Momentive SS4004P).

Uses of the Product

• Potting of electronic circuits, modules, and coils.

• Encapsulation of aerospace and military-grade components.

• Electrical insulation in defense and industrial electronics.

• High-reliability sealing and gasketing applications.

• Vibration and moisture protection for sensitive assemblies.

Applications

• Aerospace & Defense Electronics

• Industrial & Power Electronics

• Automotive & Transportation Components

• High-Temperature Electrical Insulation

• Commercial & Military Aerospace

Technical Specifications

RTV8111 + RTV9891 Catalyst System

• Color: White (RTV8111 base) / Light Blue (RTV9891 catalyst)

• Mix Ratio: 2–4% catalyst by weight

• Viscosity (RTV8111 base): 9,900 cps

• Viscosity (RTV9891 catalyst): 170,000 cps

• Pot Life @ 25 °C: 0.5 hours

• Cure Time @ 25 °C: 24 hours

• Hardness (Shore A): 45

• Tensile Strength: 25 kg/cm² (350 psi)

• Elongation: 160%

• Tear Strength: 4.3 kg/cm (24 lb/in)

• Dielectric Strength: 19.7 kV/mm (500 V/mil)

• Dielectric Constant: 3.3 @ 103 Hz

• Volume Resistivity: 1 × 10¹⁵ ohm-cm

• Linear Shrinkage: 1%

• Thermal Conductivity: 0.29 W/m·K

• Useful Temperature Range: -54 °C to 204 °C (-65 °F to 400 °F)

Why Buy From Maisam Dubai

• Supplier of genuine Momentive high-performance silicones.

• Products certified to military and aerospace specifications.

• Expert technical support for electronics, aerospace, and defense industries.

• Competitive pricing with bulk and wholesale availability. Momentive Siltrust RTV8111 RTV9891

• Reliable delivery across UAE, Saudi Arabia, Oman, Qatar, Bahrain, and Kuwait.

FAQs

Q1. What is Momentive RTV8111 with RTV9891 Catalyst used for?
It is used for potting, encapsulating, and insulating electronic and aerospace components.

Q2. Does it meet military specifications?
Yes, it conforms to MIL-PRF-23586 Type I Class I Grade B1.

Q3. What is the operating temperature range?
It performs reliably from -54 °C to 204 °C (-65 °F to 400 °F).

Q4. How long does it take to cure?
At room temperature (25 °C), it cures in 24 hours.

Q5. Is it solvent-free?
Yes, RTV8111 is solvent-free and non-corrosive to copper.

Q6. Do you supply across GCC?
Yes, Maisam Dubai supplies Momentive RTV8111 & RTV9891 Catalyst across UAE, Saudi Arabia, Oman, Qatar, Bahrain, and Kuwait.

Call to Action

Looking for Momentive Siltrust RTV8111 RTV9891 Momentive Siltrust RTV8111/RTV9891 Silicone Rubber Compound Momentive RTV8111 & RTV9891 Catalyst Silicone Rubber Compound in the GCC?
📞 Phone: +971 52 167 2252
📩 Email: sales@maisamdubai.com
🌍 Serving: UAE, Saudi Arabia, Oman, Qatar, Bahrain, Kuwait