Huitian 7598 (Original model HT5981) is heavy-duty industrial flange sealing silicone adhesive in black paste form. It cures via ambient moisture with neutral oxime formula, specially developed for harsh working conditions of construction machinery, heavy trucks and mining equipment. It can replace traditional paper, rubber and metal gaskets permanently, featuring long-term oil resistance, high temperature resistance and anti-leakage performance under vibration.
Core Technical Parameters
– Appearance: Homogeneous black paste
– Packages: 310ml standard rigid cartridge, 20kg bulk drum for industrial production
– Continuous service temperature range: -60℃ ~ 260℃
– Skin-over time: 10~30 mins under 23℃ ambient temperature; fully cured within 24 hours
– Density: 1.3g/cm³
– Hardness: Shore A 35
– Elongation at break: ≥350%, outstanding elasticity
– Tensile strength: 1.5~2.5MPa
– Good thixotropy, no sagging during vertical and overhead dispensing
– Neutral curing formula, non-corrosive to cast iron, aluminum alloy, steel and zinc alloy components
Key Advantages
1. Excellent medium resistance: Resists long-term immersion of engine oil, gear oil, transmission fluid, coolant and diesel fuel without swelling, softening or debonding;
2. Stress relief against temperature cycling: High elastic cured layer absorbs thermal expansion and contraction stress effectively to avoid recurrent leakage;
3. Superior weather resistance, anti-aging and shock resistance: Stable under continuous vibration of mining and construction vehicles, no cracking or pulverization after long outdoor service;
4. Low-odor neutral curing system, comfortable for mass workshop assembly work;
5. Wide application range: Suitable for both auto repair and heavy industry equipment sealing in mining, electric power and cement industries;
6. Great gap filling capacity to compensate slight wear and deformation of flange surfaces.
Main Applications
1. Flange sealing for large gearboxes, drive axles, differentials, oil pans and hydraulic housings on heavy trucks, coaches and construction machinery;
2. Anti oil/water/air leakage sealing for air compressors, reducers, oil pumps and generator sets used in mining industry; 3. Long-term sealing for equipment end caps and joint surfaces in electric power, cement and metallurgy fields;
4. Original assembly and after-sales maintenance sealing for large internal combustion engines and hydraulic equipment.）
Our experienced engineers and technical specialists are here to provide professional guidance, product selection, and application support tailored to your specific requirements.
