LCF1944 RTV Silicone Adhesive

One-component silicone adhesive sealant for electronic bonding, electrical insulation, and environmental sealing.

LCF1944 is a one-component, room-temperature-vulcanizing (RTV) silicone adhesive developed for bonding and sealing electronic components, automotive electronics, and industrial equipment. It cures at room temperature to form a durable, flexible silicone elastomer that helps accommodate vibration, mechanical shock, and stresses caused by thermal expansion and contraction.

Combining electrical insulation with a thermal conductivity of 0.4 ± 0.04 W/m·K, LCF1944 is suitable for assemblies that require adhesive bonding, sealing, and a degree of heat transfer. Its weather resistance and flexibility support applications exposed to moisture and changing temperatures.

Key Features and Benefits

Typical Applications

Electronic Component Bonding

Bonding and securing components in electronic assemblies where flexibility, electrical insulation, and resistance to vibration are required.

Automotive Electronics Sealing

Bonding and sealing sensor assemblies, electronic modules, and related housings, subject to application-specific qualification.

Electrical and Electronic Enclosures

Sealing enclosure joints and component interfaces to help reduce moisture ingress and protect internal assemblies.

Industrial Equipment Bonding and Sealing

Flexible bonding and sealing of equipment housings, covers, and joints exposed to vibration and temperature changes.

Application Considerations

Apply to clean, dry surfaces free from oil, dust, and other contaminants. Confirm adhesion and material compatibility on the actual substrates before production use.

Allow the adhesive to cure fully before exposing the assembly to service conditions. Refer to the product technical data sheet for surface preparation, cure time, recommended application thickness, and handling requirements.

Frequently Asked Questions

Can LCF1944 be used as thermal glue?

LCF1944 is a thermally conductive adhesive with a thermal conductivity of 0.4 ± 0.04 W/m·K. It may suit applications requiring bonding together with some heat transfer. Suitability depends on heat load, bond-line thickness, contact area, and the required thermal performance of the assembly.

Does LCF1944 provide electrical insulation?

Yes. LCF1944 has a specified dielectric strength of at least 15 kV/mm. Electrical performance in the finished assembly also depends on adhesive thickness, joint design, and operating conditions.

Is LCF1944 suitable for outdoor sealing?

Its weather, UV, and moisture resistance make it a candidate for outdoor bonding and sealing. Confirm performance against the actual substrates, joint design, and environmental exposure requirements.

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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