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Customer Reviews
The pair of corbels I git look great on my kitchen island
nadia L. gave Large Traditional Acanthus Corbel a rating of 4/5
nadia L.
need some firebrick and was going to buy the standered size and cut it, but then I found this castable firebrick that I ...
Kennith torento gave Castable Fire Brick Refractory Cement - up to 2200 Degrees Fahrenheit Premixed 12-1/2 Pound Bucket a rating of 5/5
Kennith torento

Mortars, Cements, & Sealants

Mortars, Cements, & Sealants for Fireboxes or Gaskets

Fireboxes break, gaskets degrade, chimneys crumble, and masonry cracks... But our high temperature mortars, cements, and sealants can help keep them running like new!

Not sure what kind you need? We're happy to help you figure out what will work in your situation!

Call us today at 1-888-986-1535


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Need a high-temperature glue that won't fill your stove door with ugly goop? This stove gasket adhesive can be used with fiberglass gasket to seal a high temperature wood, pellet, or coal stove door! With a heat resistance of up to 2000°F, it can provide a great bond for light and heavy gasket. Here's how it works: Typical installation: Remove your door, lay it down horizontally (flat) Clean the surface of the old adhesive Apply the clear adhesive to the door Work the gasket into the adhesive Allow the glue to dry for 24 hours before firing up your stove or fireplace Vertical installation: ...
$4.99
Black fiberglass gasket cement by A.W. Perkins is used to adhere a replacement gasket to a wood stove door, fireplace door, or other types of cast iron access panels. This cement is able to stand up to temperatures of 2000 degrees fahrenheit, and its durable too. Unlike other lesser quality cements, A.W. Perkins gasket cement will not crack and crumble away due to very hot fires. In addition, the special formula is able to seal tiny pinholes or other imperfections in the gasket mounting surface. Comes in black, available in a 2.7oz squeeze tube for easy installation. Also available in a 10.3oz ...
$8.90
Stove Bright M230™ is an easy-to-use sealant for maintenance and installation of wood stove gasket, direct vent appliances such as pellet stoves, and gas-burning systems. This high heat sealant can also be used to seal a metal flue for wood and coal burning stoves. This sealant resists peak temperatures of around 1100°F but is designed for use with a continuous operating temperature of around 900°F. Create a safe fireplace seal and be sure to only use the best high heat sealant available - the M230. Black in color. Will dry as a charcoal finish available in a 10.3oz caulking tube ...
$17.85
Stove Bright M230™ is an easy-to-use sealant for maintenance and installation of wood stove gasket, direct vent appliances such as pellet stoves, and gas-burning systems. This high heat sealant can also be used to seal a metal flue for wood and coal burning stoves. This sealant resists peak temperatures of around 1100°F but is designed for use with a continuous operating temperature of around 900°F. Create a safe fireplace seal and be sure to only use the best high heat sealant available - the M230. Black in color. Will dry as a charcoal finish available in a 10.3oz caulking tube ...
$259.95
NuFlex 302 Hi-Temperature Silicone Sealant is a one-part non-slumping silicone sealant with the consistency of toothpaste. It cures when it is exposed to moisture in the air to form a tough rubbery seal. NuFlex 302 Hi-Temp was formulated to perform at temperatures ranging from –65° to 260°C (-85° to 500°F) under continuous operating conditions. During intermittent exposure, NuFlex 302 Hi-Temp will withstand temperatures as high as 316°C (600°F). It is ideal for a number of sealing and bonding applications. The high temperature properties of NuFlex 302 Hi-Temp make ...
$16.85
NuFlex 302 Hi-Temperature Silicone Sealant is a one-part non-slumping silicone sealant with the consistency of toothpaste. It cures when it is exposed to moisture in the air to form a tough rubbery seal. NuFlex 302 Hi-Temp was formulated to perform at temperatures ranging from –65° to 260°C (-85° to 500°F) under continuous operating conditions. During intermittent exposure, NuFlex 302 Hi-Temp will withstand temperatures as high as 316°C (600°F). It is ideal for a number of sealing and bonding applications. The high temperature properties of NuFlex 302 Hi-Temp make ...
$86.45
NuFlex 302 Hi-Temperature Silicone Sealant is a one-part non-slumping silicone sealant with the consistency of toothpaste. It cures when it is exposed to moisture in the air to form a tough rubbery seal. NuFlex 302 Hi-Temp was formulated to perform at temperatures ranging from –65° to 260°C (-85° to 500°F) under continuous operating conditions. During intermittent exposure, NuFlex 302 Hi-Temp will withstand temperatures as high as 316°C (600°F). It is ideal for a number of sealing and bonding applications. The high temperature properties of NuFlex 302 Hi-Temp make ...
$16.85
NuFlex 302 Hi-Temperature Silicone Sealant is a one-part non-slumping silicone sealant with the consistency of toothpaste. It cures when it is exposed to moisture in the air to form a tough rubbery seal. NuFlex 302 Hi-Temp was formulated to perform at temperatures ranging from –65° to 260°C (-85° to 500°F) under continuous operating conditions. During intermittent exposure, NuFlex 302 Hi-Temp will withstand temperatures as high as 316°C (600°F). It is ideal for a number of sealing and bonding applications. The high temperature properties of NuFlex 302 Hi-Temp make ...
$86.45
Homeowners Choice has formulated this silicone sealant specifically for use in high temperature environments. This silicon will resist atmospheric, chemical, or temperature based fluctuations, and will always stay elastic. This silicone is intended for use in applications up to 500°F. Colored black and comes in a 10.3oz caulking tube for easy installation. Silicone & Caulking Tips: DiY like a Pro! This cartridge fits into a standard caulking gun. For clean application, cut cartridge tip near the end, at a 45 degree angle. Surface must be clean, dry, and free of debris. Have some damp rags ...
$16.99
Homeowners Choice has formulated this silicone sealant specifically for use in high temperature environments. This silicon will resist atmospheric, chemical, or temperature based fluctuations, and will always stay elastic. This silicone is intended for use in applications up to 500°F. Clear color and comes in a 10.3oz caulking tube for easy installation. Silicone & Caulking Tips: DiY like a Pro! This cartridge fits into a standard caulking gun. For clean application, cut cartridge tip near the end, at a 45 degree angle. Surface must be clean, dry, and free of debris. Have some damp rags ...
$16.99
This Rutland 10.3 oz fireplace mortar was developed to patch fireboxes and bond firebrick to each other. The mortar will dry as hard as firebrick if it is properly cured and will withstand 2000°F! Passes ASTM E136 and E72. Burn a low fire to dry fireplace mortar, then heat strongly to cure. Silicone & Caulking Tips: DiY like a Pro! This cartridge fits into a standard caulking gun. For clean application, cut cartridge tip near the end, at approx 45 degree angle. Surface must be clean, dry, and free of debris. Have some damp rags or a roll of paper towels within reach. Put down newspaper ...
$15.99
This Rutland 10.3 oz fireplace mortar was developed to patch fireboxes and bond firebrick to each other. The mortar will dry as hard as firebrick if it is properly cured and will withstand 2000°F! Passes ASTM E136 and E72. Burn a low fire to dry fireplace mortar, then heat strongly to cure. Silicone & Caulking Tips: DiY like a Pro! This cartridge fits into a standard caulking gun. For clean application, cut cartridge tip near the end, at approx 45 degree angle. Surface must be clean, dry, and free of debris. Have some damp rags or a roll of paper towels within reach. Put down newspaper ...
$15.99
This Rutland 10.3 oz fireplace mortar was developed to patch fireboxes and bond firebrick to each other. The mortar will dry as hard as firebrick if it is properly cured and will withstand 2000°F! Passes ASTM E136 and E72. Burn a low fire to dry fireplace mortar, then heat strongly to cure. Silicone & Caulking Tips: DiY like a Pro! This cartridge fits into a standard caulking gun. For clean application, cut cartridge tip near the end, at approx 45 degree angle. Surface must be clean, dry, and free of debris. Have some damp rags or a roll of paper towels within reach. Put down newspaper ...
$15.99
Multi surface silicone sealant RTV 7500 has excellent adhesion to many common surfaces.This silicone sealant will resist chemical, atmospheric and temperature based fluctuations, and will continue to be flexible up to 50% in a joint when at high temperatures. This high quality silicon sealant has a 10 minute tooling time and is tack free in 20 minutes. Clear colored in a 10.3oz caulking tube for easy application. Silicone & Caulking Tips: DiY like a Pro! This cartridge fits into a standard caulking gun. For clean application, cut cartridge tip near the end, at approx 45 degree angle. Surface ...
$15.99
Silco has created the RTV4500 heavy duty silicone sealant for use in high heat environments where flexible joints are manditory. This clear silicone sealant will resist chemical, atmospheric and temperature fluctuations, all while keeping a 25% joint flexibility when at high temperatures. Clear colored in a 10.3oz caulking tube for easy application. Silicone & Caulking Tips: DiY like a Pro! This cartridge fits into a standard caulking gun. For clean application, cut cartridge tip near the end, at approx 45 degree angle. Surface must be clean, dry, and free of debris. Have some damp rags or ...
$16.99
Gray w/grit , for parging. A premium quality, super-duty mortar best for masonry to masonry bond applications. Super 3000 Cement is a premixed air and heat setting mortar which withstands temperatures up to 3000 degrees F and resists freezing down to 0° F. Super 3000 Cement is gray in color and it contains a sodium silicate binder that eliminates the need to dampen the brick during application. This makes it shrink resistant while giving it exceptional strength and workability. Also available without grit and both styles should be stored in an area where the temperature is above freezing, yet ...
$126.95
This is a gray, smooth mix for troweling. A premium quality, super-duty mortar best for masonry to masonry bond applications. Super 3000 Cement is a premixed air and heat setting mortar which withstands temperatures up to 3000 degrees F and resists freezing down to 0° F. Super 3000 Cement is gray in color and it contains a sodium silicate binder that eliminates the need to dampen the brick during application. This makes it shrink resistant while giving it exceptional strength and workability. Available with or without grit and both styles should be stored in an area where the temperature is ...
$89.95
Customer Feedback  Our customers rate us 5/5 stars.

Our loyal customers have left 59 company testimonials giving us an average of 5/5 stars for great service. Would you like to leave your own feedback, testimonial, or review? Leave My Feedback

Just wanted to let you know we (finally) received the correct grate. Please extend Marcy our thanks – she was very helpful throughout this!

Lisa rated our company service 5/5 Lisa

Fireplace doors
Awesome service and product, couldn't be happier. The custom doors that I ordered fit like a glove and came earlier than expected. If you need replacement or custom made doors for your fireplace, get them here.

steve rated our company service 5/5 steve Fayetteville, NC

In today’s world of internet buying across hundreds and/or thousands of miles it is the customer who is at risk as they are purchasing product site unseen. Knowing CJ’s Home Decor & Fireplaces stood behind their customer says a lot about its service and its employees.

Greg rated our company service 5/5 Greg

Thanks for the corner fireplace screen. I have installed it but haven't actually used it yet, but it looks great and fit perfect.

David rated our company service 5/5 David

Exact Sized Replacement
We installed the fireplace screens today. They installed very easy and were exact in size. Thank you so much for your professionalis m throughout.

Cornell rated our company service 5/5 Cornell

About CJ's Home Decor & Fireplaces LLC Thanks for Shopping CJ's!
Fire, Water, Paradise Experts Since 1999!
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Fax: (814) 723-4187
Warren, PA 16365
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