J-B Weld ExtremeHeat™ Putty, 85g, for High-Temperature Repairs
An ultra opaque premium wall & ceiling paint. Delivering excellent durability and coverage for high traffic areas with a brilliant wipeable finish.
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
- Dry colour: Machine Grey
- Pack size: 0.5ltr
- Coverage: ~4.25 m²/litre: dependent on texture and porosity
- Apply with: brush or roller
- Drying time: 1 hour
- Touch dry: 1 hour
- Recoatable: 3-4 hours
- Cure time: 24 hours
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. Use appropriate PPE.
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