LCF1901 RTV Silicone Adhesive

Thermally conductive silicone adhesive sealant for component bonding and assembly protection.

LCF1901 is an RTV silicone adhesive for applications that combine bonding, sealing, heat transfer, and electrical insulation. It cures at room temperature to form a silicone elastomer with a hardness of 60 ± 5 Shore A, providing a firmer cured material for assemblies where component support and joint stability are important.

With a thermal conductivity of 0.6 ± 0.06 W/m·K and a dielectric strength of at least 15 kV/mm, LCF1901 is a candidate for electronic and industrial assemblies requiring heat transfer across an electrically insulating bond line. Its specified operating temperature range is −60°C to +200°C.

Technical Specifications

Key Features and Benefits

Wide operating temperature range: Offers a specified service range of −60°C to +200°C for applications exposed to temperature variation.

Potential Applications

Electronic Assembly Bonding

Bonding components to supports or housings where the joint must combine electrical insulation with heat transfer.

Component Fixing and Support

Securing parts within electronic or industrial assemblies where cured adhesive hardness is a material selection consideration.

Housing and Interface Sealing

Sealing joints around covers, housings, and component interfaces, subject to adhesion and sealing-performance verification.

Thermally Conductive Bond Lines

Creating bonded interfaces where thermal conductivity, electrical isolation, and mechanical attachment must be considered together.

Selecting LCF1901 for Your Assembly

Evaluate LCF1901 against the actual substrates, joint dimensions, electrical requirements, and operating conditions. Thermal performance depends on bond-line thickness, contact area, and interface quality as well as the adhesive’s thermal conductivity.

Surfaces should be clean, dry, and free from contaminants before application. Refer to the technical data sheet for cure conditions, processing guidance, and substrate preparation requirements.

Frequently Asked Questions

Is LCF1901 a thermal glue?

LCF1901 can be considered for thermal glue applications that require a curing silicone adhesive with electrical insulation. Its thermal conductivity is 0.6 ± 0.06 W/m·K. Confirm that the completed bond line meets the assembly’s heat-transfer requirements.

What does 60 Shore A hardness indicate?

Shore A hardness describes the cured material’s resistance to indentation. LCF1901 has a specified hardness of 60 ± 5 Shore A. Hardness should be assessed alongside adhesion, flexibility, and joint geometry when selecting an adhesive.

Is tensile strength the same as adhesive bond strength?

No. The specified tensile strength of ≥2.0 MPa describes the cured material’s resistance to tensile loading. Adhesive bond strength depends on the substrates, surface preparation, cure conditions, and joint design.

Reliable thermal performance starts with the right materials.

With 15 years of expertise, Union Tenda provides thermal interface materials tailored to your applications—from thermal pads and gels to greases, potting compounds and phase change materials. Our in-house R&D and testing capabilities, backed by a 20,000 m² production base, support customers across electronics, AI, EVs and energy storage.

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