J-B Weld ExtremeHeat™ Putty, 85g, for High-Temperature Repairs
High-temperature repair putty for metal, exhaust systems, and grills. Resists up to 538°C.
The J-B Weld ExtremeHeat™ Putty is a high-performance metallic compound designed for repairing iron, steel, and metal components exposed to extreme temperatures of up to 1000°F (538°C). Once fully cured, it can be drilled, machined, or sanded, making it ideal for professional and DIY repairs.
This water-based, non-flammable putty contains no solvents or volatile organic compounds (VOCs), ensuring a safer application process. It excels in sealing cracks, small gaps, seam connections, and holes in high-heat environments.
Applications
- Ideal for exhaust manifolds and pipe connections
- Perfect for mufflers and catalytic converters
- Excellent for outdoor grills, fire boxes, and fireplaces
- Suitable for gas and commercial furnaces
- Effective for water heater repairs
Specifications
- Temperature Limit: 538°C
- Setting Time: 1 hour
- Cure Time: 24 hours
- Colour When Dry: Machine Grey
- Size: 85g
- +15
- Exhaust manifolds
- Pipe connections
- Mufflers
- Catalytic converters
- Material: Metallic compound
- Temperature Limit: 538°C
- Setting Time: 1 Hour
- Cure Time: 24 Hours
- Colour When Dry: Machine Grey
- Size: 85g
- Weight: 110g
Hazard information
H319
Causes serious eye irritation.
P501
Dispose of contents/container to …
H315
Causes skin irritation.
P280
Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
P305 + P351 + P338
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
P302 + P352
IF ON SKIN: Wash with plenty of water/…
P405
Store locked up.
P264
Wash … thoroughly after handling.
P333 + P313
If skin irritation or rash occurs: Get medical advice/attention.
P362 + P364
Take off contaminated clothing and wash it before reuse.
P337 + P313
If eye irritation persists: Get medical advice/ attention.
P332 + P313
If skin irritation occurs: Get medical advice/attention.
P270
Do not eat, drink or smoke when using this product.
P308 + P313
IF exposed or concerned: Get medical advice/ attention.
H302
Harmful if swallowed.
P201
Obtain special instructions before use.
P330
Rinse mouth.
H350I
May cause cancer by inhalation.
Documents
Always follow local regulations and product guidance.
Free standard delivery on UK mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty items, contact us within 14 days for a replacement or refund.
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