GH-880 high temperature silicone sealant packaging view 3
GH-880 high temperature silicone sealant packaging view 10
GH-880 high temperature silicone sealant packaging view 16
GH-880 high temperature silicone sealant packaging view 13
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  1. GH-880 high temperature silicone sealant packaging view 3
  2. GH-880 high temperature silicone sealant packaging view 10
  3. GH-880 high temperature silicone sealant packaging view 16
  4. GH-880 high temperature silicone sealant packaging view 13
  5. gh-880-high-temp-silicone-sealant-pack-5

GH-880 High-Temperature Silicone Sealant

Industrial grade high-temperature silicone sealant featuring a wide temperature resistance range from -60°C to +300°C. Neutral cure, non-corrosive, and flexible for reliable high-temperature bonding and sealing on metals, ceramics, glass and plastics. Ideal for automotive, engine, industrial furnace and appliance high-heat applications.
  • Temperature resistant: -60°C to +300°C
  • Stable bonding in high-temperature environments
  • Resistant to oils, fuels, and industrial chemicals
  • Excellent adhesion to metals, ceramics, and glass
  • Neutral-cure, low odor, non-corrosive
  • COA provided with every shipment
Extra Features
  • Premium Quality
  • Secure Payments
  • Satisfaction Guarantee
  • Worldwide Shipping
  • Money Back Guarantee
Guhe GH-880 High-Temperature Silicone Sealant is a professional one-component neutral-cure industrial RTV silicone sealant designed for extreme temperature sealing and bonding scenarios. Capable of continuous operation from -60°C to +300°C with a peak temperature resistance up to 260°C, this sealant maintains stable elasticity and sealing integrity under thermal cycling, vibration and mechanical stress.
Formulated with premium silicone materials, GH-880 delivers excellent adhesion to metals, ceramics, glass, and most engineering plastics. The neutral curing formula features low odor and non-corrosive performance, ensuring safe application on sensitive substrates without damaging equipment surfaces. After room-temperature curing, it forms a tough, flexible rubber layer that resists cracking, shrinking and peeling in long-term service.
This high-temperature sealant boasts outstanding resistance to engine oil, fuel and common industrial chemicals, perfectly solving the failure problem of ordinary sealants in harsh high-temperature environments. It is widely applied in automotive engine blocks, valve covers, exhaust systems, industrial furnaces, oven observation windows and industrial high-temperature equipment maintenance.
Available in multiple specifications including 300ml cartridges, 590ml sausage packs, 2.6L/20L/200L bulk drums. Every batch is supplied with complete COA certification, meeting OEM manufacturing and industrial engineering standard requirements.
Cure Type Neutral —
Continuous Service Temperature -60°C to +250°C —
Peak Temperature Up to +260°C /+260°C —
Hardness (Shore A) 40-50 GB/T 13477
Tensile Strength ≥ 1.5MPa GB/T 528
Elongation at Break ≥ 250% GB/T 528
Tack-Free Time ≤ 1 hour GB/T 13477
Service Temperature Range -60°C to +250°C —
Shelf Life 12 months —

Automotive Engine & Exhaust Systems:

For sealing and gasketing applications on engine blocks, valve covers, exhaust manifolds, and other high-temperature automotive components – withstanding engine heat and vibration.

Industrial Furnaces & Ovens:

For sealing observation windows on industrial furnaces, ovens, and drying equipment – maintaining sealing integrity under continuous high-temperature conditions

Appliance Heating Element Sealing:

For securing and sealing heating elements in household appliances – ensuring long-term safety and reliable performance.

General Industrial Equipment Maintenance:

For sealing and repair of pipes, flanges, and joints in industrial equipment – one sealant, multiple uses, reducing spare parts inventory.

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