H.B.Fuller TONSAN 704

H.B.Fuller TONSAN 704

Basic Specifications

1. Brand: Leakel, brand under H.B.Fuller Group
2. Appearance: White thixotropic paste silicone
3. Curing Mode: Neutral moisture curing at ambient temperature, single-component ready-to-use formula
4. Dielectric Breakdown Strength: 20KV/mm
5. Continuous Operating Temperature: -60℃ ~ 180℃
6. Compatible Substrates: Metal, glass, ceramic, all kinds of plastics

Key Advantages

1. Superior electrical insulation property: Dielectric strength up to 20KV/mm, effectively prevents electric leakage and provides reliable insulation protection for PCBs and semiconductors;
2. Stable performance under wide temperature range: Remains flexible from -60℃ to 180℃ without hardening, sagging or pulverization during temperature cycling;
3. Multi-protection functions: Integrates waterproof, dustproof, shockproof and moisture-proof performance to avoid circuit short circuit caused by dampness;
4. Non-corrosive neutral curing: No acidic volatiles released during curing, safe for precision chips, circuit boards and optical lenses;
5. Strong adhesion to various substrates: Firmly bonds metal, plastic, glass and ceramic materials;
6. Excellent aging resistance: No cracking or yellowing after long-term indoor & outdoor service.

Main Applications

Bonding, waterproof sealing and electrical insulation for electronic components, semiconductors, electrical appliances, instruments and optical equipment;
Widely used for edge sealing of power modules, sensors and circuit boards inside small household appliances.

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