Products
Exhaust Repair
ExtremeHeat™

SKU: 37901

ExtremeHeat™ Paste - 3 oz

$ 11.99 In stock https://jbweld.com/product/j-b-extremeheat

Attributes

High Temperature

Use On

Automotive
Metal
Concrete
Aluminum
Ceramic

Where To Buy

Specifications
Related Products
Application
Reviews

ExtremeHeat™ is formulated to allow for repairs to iron, steel and metal in high temperature environments (1000°F / 537°C). When fully cured, this metallic compound can be drilled, machined or sanded. It is great for repairing cracks, small gaps, seam connections or holes in exhaust manifolds, pipe connections, mufflers, catalytic converters, outdoor grills, fire boxes, gas and commercial furnaces and water heaters. This product is water based, non-flammable and contains no solvents or Volatile Organic Compounds (VOCs).

Get The Safety Data Sheet

For California residents only, check here for warning

Product Attributes

Set Time

1 Hour

Cure Time

24 Hours

Dry Color

Dark Gray

Metals

Metal

Aluminum

Other

Automotive

Concrete

Ceramic

Related
Products

HighHeat™
Epoxy Putty - 2 oz

MufflerSeal
Muffler Cement

Application
Get Started Today

Prepare

Mix

Apply

Dry

Prepare

Remove dirt, debris or loose contaminants from surface. Use sand paper to roughen. For some repairs, open small cracks further with a drill or screwdriver to create a 1/8" gap.

Mix

Open J-B Weld® Extreme Heat™. Thoroughly mix product.

Apply

Use product generously, working onto surface or into hole, crack, pit or seam. Repeat as needed. Allow 2-4 hours set up, depending on temperature and current environment.

Dry

Test cure by pressing fingernail or thumbnail into repair material. If unable to penetrate, then repair is complete. If area appears slightly soft, use a non-flame heat source, such as a hair dryer, to speed cure time, or allow 24 hours before allowing high heat exposure. Repeat test until fully cured.