Huitian 7587 (HT5871) is industrial high-performance silicone rubber specially for flange sealing. It is blue paste and cures at room temperature with ambient moisture. Adopting oxime elimination formula, it features mild odor and no corrosion to all metal substrates, designed for leak-proof sealing of flanges on machinery and internal combustion engines, capable of replacing traditional paper and rubber gaskets entirely.
Basic Technical Parameters
– Appearance: Homogeneous blue paste
– Package: 310ml standard rigid cartridge
– Operating temperature range: -60℃ ~ 260℃
– Max sealing pressure: 10MPa hydraulic pressure for oil circuit working conditions
– Skin-over time: 10 mins under 23℃/50%RH; fully cured within 24 hours
– Hardness: Shore A 30~45; Elongation at break ≥ 400%, excellent flexibility
– Max gap filling: 6mm, suitable for flange joints with large clearance
Key Advantages
1. Outstanding resistance to engine oil, gear oil, coolant and gasoline, no swelling or failure after long-term contact with lubricants;
2. Flexible elastic solid after curing, absorbs thermal expansion & contraction stress of equipment to avoid leakage caused by temperature cycling;
3. Oxime neutral curing formula, non-corrosive to cast iron, aluminum alloy, steel and zinc alloy;
4. Great anti-aging, weather-proof and shock-resistant performance, long service life under harsh engine bay environment;
5. Medium viscosity anti-sagging property, no dripping during vertical & overhead dispensing;
6. Low odor, more comfortable for auto repair and workshop operation.
Main Applications
Flange sealing for engine oil pans, cylinder joints, gearboxes, water pumps and differentials on cars and motorcycles; joint sealing of air compressors, oil pumps, reducers, machine tools and hydraulic equipment; anti-oil/water/air leakage sealing for internal combustion engines and construction machinery.）
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