High Temperature Tools & Refractory

Frequently Asked Questions


Satanite Refractory Mortar:

This refractory mortar works great for sealing the Inswool/Kaowool fibers on the walls of your forge. It can also be used as a clay coating for developing "temper lines" (hamons) on your blades. You can also use it to coat your entire blade to aid in the reduction of scaling during the heat treating process.

- 3200 degree temperature rating

55 pound bag - $88.00
20 pound bag - $46.00
5 pound bag   - $15.00
1 pound bag   - $4.50

We can ship 20 pounds of Satanite in a USPS Flat Rate box!

Satanite FAQ

Satanite Refractory Mortar 1#

Satanite Refractory Mortar 5#

20 Pounds  

20 Pounds with USPS Flat Rate Shipping in the U.S.A 

55 Pounds



APG #36 Refractory Cement:

This high temperature refractory mortar/cement is the stuff that the late Bob Engnath promotes on his website for clay coating blades as well as the material that Walley Hayes uses in his Katana making videos. We are now offering it in small quantities as an alternative to Satanite for clay coating.

- 3200 degree temperature rating
Wet, High Strength, High Alumina Mortar

1 Pint = $10.00


APG #36 Refractory Cement



Bubble Alumina Refractory Coating

Highly flux resistant! This material works really well for coating an Inswool lined forge for protection against flux when forge welding. This is one of the most flux resistant coatings we have found to date!

- 3300 degree temperature rating
2.5 # bag is enough to do the floor in a 12" vertical forge (3/8" recommended thickness)

84#/cubic foot density.
Mix 15% water by weight

2.5 pound bag - $17.00

5 pound bag - $32.00

20 pound bag - $120.00

- We can ship up to 20 pounds of Bubble Alumina in a USPS Flat Rate box!

Bubble Alumina FAQ

Bubble Alumina

20 Pounds Bubble Alumina with USPS Flat Rate Shipping in the U.S.A



SairBond Refractory Mortar:

This high alumina-silica refractory mortar is made for laying firebrick.
Specifically, it's application is for thin joints ( 1/8" thick joint or less) between bricks. It is a dry, air-setting, high strength mortar.

- 3000 degree temperature rating
- Dry, high strength Silica-Alumina Mortar

20 pounds - $44.00
5 pounds - $16.00

- We can ship 20 pounds of SairBond in a USPS Flat Rate box!

Sairbond FAQ

5 Pounds Sairbond Refractory Mortar

20 Pounds Sairbond Refractory Mortar with USPS Flat Rate Shipping in the U.S.A. 

55 Pounds SairBond Refractory Mortar 



Ins-tuff Ceramic-Fiber Rigidizer

- Collodial silica ceramic-fiber blanket rigidizer

- An inorganic impregnant that can be brushed on refractory fiber materials, or other high temperature insulation surfaces.

- Approximate coverage with a single brushed coat: 
Gallon ~ 50 square feet
Quart ~ 12.5 square feet

1 Quart = $20.00
1 Gallon = $67.00

Ins-Tuff FAQ


InsTuff - Gallon


High Temperature Tools & Refractory