GH-820 General Purpose Industrial Silicone Sealant

Multi-purpose neutral cure industrial silicone sealant with universal substrate adhesion. Bonds metal, glass, ceramic, plastic and concrete. Weather & UV resistant, ideal for industrial equipment maintenance, HVAC and electrical sealing.
  • Multi-substrate adhesion – versatile one-product solution
  • Bonds to metals, plastics, glass, wood, and concrete
  • Neutral-cure, low odor, safe to use
  • Weather and UV resistant – indoor & outdoor
  • Simplifies inventory management
  • COA provided with every shipment
Extra Features
  • Premium Quality
  • Secure Payments
  • Satisfaction Guarantee
  • Worldwide Shipping
  • Money Back Guarantee
Guhe GH-820 General Purpose Industrial Silicone Sealant is a versatile single-component neutral-cure RTV silicone sealant, serving as an all-in-one solution for industrial sealing, bonding and waterproofing. It replaces multiple single-function sealants, greatly simplifying industrial inventory management and construction processes.
This multi-substrate sealant provides excellent adhesion for almost all common industrial materials, including aluminum, steel, iron, glass, ceramics, ABS/PC plastics, wood and concrete. The low-odor non-corrosive formula is safe for enclosed spaces and sensitive material surfaces, no damage to equipment and components.
After room-temperature curing, it forms a flexible and weather-resistant rubber layer with excellent UV resistance and temperature stability (-40°C to +160°C). It effectively resists dust, moisture and mild chemical corrosion, maintaining stable sealing performance in indoor and outdoor industrial environments.
Widely applicable for industrial machinery maintenance, pipeline gap sealing, HVAC system air duct sealing, electrical enclosure waterproofing and general industrial bonding. Available in 300ml, 2.6L, 20L and 200L specifications with complete COA certification, suitable for factory assembly and engineering maintenance.
Cure Type Neutral RTV (moisture-curing) / RTV —
Chemistry Silicone —
Service Temperature -40°C to +160°C —
Tack-Free Time ≤ 1 hour GB/T 13477
Hardness (Shore A) 35-50 GB/T 13477
Tensile Strength ≥ 1.5 MPa GB/T 528
Elongation at Break ≥ 250% GB/T 528
Shelf Life 9 months —

Industrial Equipment Maintenance & Repair:

Used for sealing joints, seams, and gaps in industrial machinery, pumps, compressors, gearboxes, and piping systems. Provides reliable sealing against dust, moisture, oils, and mild chemicals – ideal for routine maintenance and on-site repairs where quick, durable sealing is required. Excellent adhesion to metals, plastics, and ceramics commonly found in industrial equipment.

HVAC & Refrigeration Systems:

Used for sealing duct connections, air handler joints, refrigeration lines, and equipment interfaces in heating, ventilation, air conditioning, and refrigeration systems. Ensures air-tight and moisture-resistant seals that improve system efficiency and prevent energy loss. Bonds well to galvanized steel, aluminum, copper, and plastic components.

Electrical & Electronic Equipment Sealing:

Used for sealing cable entries, junction boxes, control panels, and electrical enclosures. Provides reliable protection against dust, moisture, and contaminants in industrial environments. Neutral-cure system ensures non-corrosive performance, making it safe for use with sensitive electronic components and wiring.