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Made by the company that manufacturers Heat Stop, Insul Stick is a medium-weight castable refractory dry mix designed for smooth parging over firebrick in fireplace smoke chambers. It comes in a 5 or 20 lb pail. Heatcast 40 refractory Castable dry mix in a bag castable refractory
KS-4V PLUS
Our Price: $92.00

Insul Stick Castable Refractory Dry-Mix.
Made by the company that manufacturers Heat Stop, Insul Stick is a medium-weight castable refractory mix designed for use in a wide variety of interior and exterior masonry applications. Insul Stick's popularity in the masonry business is due mostly to its versatility - once mixed with clean water, it can be troweled, cast into special shapes or sprayed, and it's also ideal for smooth parging over firebrick in fireplace smoke chambers. It provides superior insulating value and strength. True to its name, this mix will stick to just about any non-slippery surface and resists temperatures of up to 2,200 degrees Fahrenheit. You will need approximately 2.5 lbs. of product per square foot when applied 1/2" thick.

Insul Stick's most common application is as a firebrick and clay repair dry mix. It meets and exceeds ASTM E-136 and ASTM C-199 standards for sealing cracks and holes in walls, making it an ideal choice for masonry restoration. With 5- and 20-lb. pails available, consider Insul Stick for your next masonry construction project. Contact us for more information about what Insul Stick can do! And remember, shipping is FREE for all orders (contiguous US only).

Heat Cast 40 Refractory Castable.
Use to cast a dome, inner hearth in a pizza oven.
Designed for use in very high-temperature environments, Heatcast 40 is Heat Stop's heavy-duty castable that's easy to mix and fire and heat resistant to temperatures of up to 2,500 degrees Fahrenheit. This is an ideal castable for special shapes and complete sections in bread and pizza ovens, crematories, flues, incinerators, masonry heaters, boilers, fireplaces, furnaces, kilns and wood stoves. (Use it to create your pizza oven dome and hearth, for example.) Simply mix Heatcast 40 with clean water and trowel or cast the mixture into place for a durable, customized finish that will keep your projects strong and protected from high heat. You will need approximately 20 lbs. of product per square foot when applied 2" thick (or 120 lbs. per cu.ft.).

Heatcast 40 meets and exceeds A.S.T.M. C-401 Class B code requirements for structural strength and safety. We ship this product in a 40-lb. bag for your convenience. MyBuildingSupplyStore.com offers this and all other Heat Stop refractory products at manufacturer direct prices to ensure your projects stay within budget. Contact us today with questions about necessary quantities or appropriate use! Remember, shipping is FREE for all orders (contiguous US only). Consider adding our masonry color or tools to your order.

KS-4V PLUS is a dense general-purpose fireclay castable refractory product rated to 2,600 degrees F. It offers good strength and excellent work-ability. It can be dried out at 100 degree F / hour after a 24-hour cure. Manufactured by HarbisonWalker International, some applications for KS-4V PLUS include crematories, boilers, aluminum furnace sub-hearths, multi-hearth furnaces, and incinerators. It can also be used to cast shapes for an oven, fireplace inner hearth or walls. Available in 55 lb. bags. Call for more information.
castable refractory Insul Cast dry mix refractory castable cement in a bag Castable refractory
MC-25 PLUS
Our Price: $97.00
KAST-O-LITE 26 LI
Our Price: $107.00
MC-25 PLUS is a course aggregate, high-strength conventional castable, with maximum temperature of 2550 degrees. It offers excellent resistance to thermal shock, and can withstand heavy loads. It contains course-grain technology to resist mechanical abuse. MC-25 PLUS can be used to cast shapes in a pizza oven dome, fireplace inner hearth or walls.

Insul Cast Delta Crete is an Insulating Refractory Castable.

Insul Cast is an insulating castable refractory suitable for use as a backup to firebrick or other types of solid masonry, such as pizza oven domes. Resistant to temperatures up to 2,000 degrees Fahrenheit, this conventional dry mix castable for high temperature masonry insulation is ideal for pizza or bake ovens, crematories, flues, incinerators, masonry heaters, boilers, fireplaces, furnaces, kilns and woodstoves. For pizza ovens, trowel it over the dome or under the hearth for added insulation.

This castable insulation is non-water soluble and meets and exceeds A.S.T.M. C-401 requirements for structural strength and safety. Insul Cast ships in a 50-lb. bag and requires no additives for use, just clean water. A 50 lb. bag covers approximately 6 square feet when applied 2" thick. (You'll need 30 lbs. of product per cu. ft.) Remember, shipping is FREE for all orders (contiguous US only).

KAST-O-LITE 26 LI is a low-iron insulating castable that can meet the demands of severe furnace environments. Its high alumina content improves maximum service temperature and It's low-iron content minimizes destructive CO disintegration by reducing furnace atmospheres. This product's high strength reduces cracking from mechanical abuse or steel shell flexing. It can also be used as an insulating backer over the dome or under the hearth of a pizza oven. It offers a maximum service temperature of 2,600 degrees F. Available in 55 lb bags.
Castable Refractory Castable Refractory
OVENZZ CAST
Our Price: $128.00
OVENZZ LW CAST
Our Price: $138.00
OVENZZ CAST is a fireclay based, cement-bonded dense refractory castable. It is suitable for casting shapes, pouring in place and filling large cracks and holes. It can also be used to cast shapes for a pizza oven dome, fireplace inner hearth floor or walls in a pizza oven. OVENZZ CAST is capable of service to temperatures up to 2,550 degrees F. HarbisonWalker International's OVENZZ products are certified by NSF International and maintain NSF/ANSI Standard 51 for use as a food equipment material and in food applications. Available in 55 lb. bags. Orders limited to 3 bags. OVENZZ™ LW CAST is a lightweight, insulating castable refractory with extraordinary strength and excellent insulating properties. It is suitable for casting shapes, pouring in place and filling large cracks and holes. It can be used as an insulating backup over a dome or under the hearth in a pizza oven. OVENZZ LW CAST provides more a thermal-efficient solution than denser products. It is capable of service temperatures up to 2,500 degrees F. HWI OVENZZ products are certified by NSF International and maintain NSF/ANSI Standard 51 for use as a food equipment material and in food applications. Available in 55 lb. bags. Orders limited to 3 bags.