RTH-USA PROTEPLAST-60 Plastic Refractory Mass 8 lb (74 fl. oz.)

RTH-USA PROTEPLAST-60 Application Recommendations

• Ensure the surface is clean from dust, oil, and old material residues before application.
• For better adhesion, it is recommended to slightly moisten the repair area.
• After application, allow to air dry for at least 24 hours (depending on the thickness of the layer), then proceed with gradual heating.
• Note: Sometimes the material may feel stiff upon opening — this is completely normal. You can knead it by hand or loosen it by poking and working it with a trowel. If you find that you need a softer consistency, you may add a very small amount of water.

PROTEPLAST-60 Plastic Refractory Mass is a high-alumina, chemically bonded and ready-to-use repair material engineered for advanced thermal maintenance. What sets it apart is its plastic, moldable consistency. This mass is easy to apply by hand or tool, allowing it to conform precisely into cracks, seams, or surface voids in firebrick linings and refractory installations.

Capable of withstanding temperatures up to 3000°F (1650°C), PROTEPLAST-60 is ideal for repairing erosion, thermal damage, and seam separation in industrial heat-processing equipment. Each 8 lb (74 fl. oz.) pail provides excellent handling, adhesion, and thermal endurance — trusted by DIY enthusiasts and professionals for its unmatched ease of use and durability in extreme conditions.

About PROTEPLAST-60

• Maximum Refractoriness: Withstands temperatures up to 3000°F (1650°C), perfect for high-intensity thermal environments.
• High-Alumina Composition: Ensures superior thermal shock resistance, mechanical strength, and long-lasting durability.
• Moldable Plastic Consistency: Unlike traditional cement or mortar, this is a plastic refractory mass — highly formable, pliable, and ideal for packing, patching, or reshaping damaged refractory surfaces.
• Precision Repair Capability: Perfect for restoring damaged areas in firebrick linings, patching cracks and joints in refractory cement or brick structures, and rebuilding eroded insulation layers.
• Chemically Bonded: Offers enhanced adhesion and service life under repeated thermal cycling.
• Versatile Applications: Suitable for local repairs and maintenance of kilns, furnaces, fireplaces, pizza ovens, stoves, boilers, incinerators, and other high-temperature units.
• Ready-to-Use Formula: No additives or preparation required for the product; simply open and apply.

What is Proteplast

Proteplast is the perfect solution for repairing damaged linings: cracks, chips, voids, and joint gaps.

Ready-to-use solution

Proteplast comes ready to use. It air-dries and develops initial hardness, then becomes extremely durable after heat exposure.

Please note

Proteplast is not a mortar for laying bricks or shapes.

It’s a moldable plastic refractory mass — a formable mixture that takes on any shape you give it, whether you’re filling a joint or restoring a broken section of a refractory product.

Indoor and outdoor application

Proteplast is suitable for both indoor and outdoor applications, making it a flexible and reliable solution for on-site refractory repair.

Additional features

Item Volume: 74 Fluid Ounces
UPC: 860011381099

Item Weight: 8 pounds
Package Dimensions: ‎6.5 x 6.5 x 6 inches