Professional RTV Black Silicone Sealant - High Temperature Engine Sealing
Engine seals face extreme heat, vibration, and chemical exposure that ordinary sealants can't handle. This professional RTV (Room Temperature Vulcanising) silicone is engineered for engine and housing applications - from exhaust manifolds to transmission housings across automotive, marine, and industrial use.
Extreme Temperature Performance
Operating from -60 C to +250 C (briefly +300 C), this sealant holds up in turbocharger housings, exhaust components, and high-performance builds. 25% movement capacity keeps seals flexible through heat cycles where other products crack.
Professional Grade Chemistry
MEKO-free, neutral-cure silicone means no corrosive byproducts - safe on aluminium, steel, and cast iron. Bonds directly to non-porous substrates without primers, and the solvent-free formula won't shrink.
Workshop-Ready Application
The 200ml cartridge dispenses cleanly with no mixing or waste. 15-minute skin time balances working window with productivity, and gap-filling up to 2mm handles imperfect surfaces on older engines or performance rebuilds.
Durability You Can Trust
Superior UV, weather, moisture, and aging resistance with built-in corrosion protection. 12-month storage life.
Technical Specifications
- Temperature range: -60 C to +250 C (briefly +300 C)
- Neutral-cure, MEKO-free silicone
- 25% movement capacity
- Gap filling up to 2mm
- Cure rate: 2-3mm in 24 hours
- Excellent metal adhesion, no primer required
- 200ml professional cartridge
Essential for engine rebuilders, automotive workshops, marine mechanics, and industrial maintenance.
Application Tip: Clean, dry, grease-free surfaces are essential. Apply between +5 C and +40 C - humid conditions speed up curing, perfect for muggy Aussie workshop days.