Fiberfrax® LDS Moldable – High-Performance Ceramic Insulation
Refractory Repair & Castable Solution for 1260°C Applications

Fiberfrax® LDS Moldable is a highly adaptable ceramic fibre insulation compound designed for casting, patching, coating, and lining in extreme temperature environments. Its sticky, water-based binder forms a strong bond with refractory and metal surfaces, drying into a durable, low-conductivity barrier that withstands up to 1260°C.

Perfect for both structural and maintenance insulation, LDS Moldable offers excellent thermal resistance, minimal shrinkage, and a hardened finish—ideal for use across high-heat industrial applications and refractory repair.

Key Benefits:

• High Temperature Rating: Withstands continuous exposure up to 1260°C
• Excellent Bonding: Strong adhesion to metal linings and refractory surfaces
• Low Shrinkage: Maintains form and insulation under high heat
• Hard Set Finish: Air-dries to a tough, resilient surface

Common Applications:

• Hot and cold repairs of refractory cracks and insulation voids
• Aluminium trough linings and non-ferrous metal equipment
• Burner block sealing and welding protection
• High-temperature turbine and pipe coating
• Refractory anchor insulation and boiler repair

Frequently used alongside Fiberfrax® QF180 Coating for surface sealing or with Fiberfrax® XJ1 Pumpable where injection-style application is needed.

Product Specifications:

• Colour: White
• Max Operating Temp: 1260°C
• Dried Density: 640 kg/m³
• Packaging: 20 kg drum
• Shelf Life: 12+ months unopened

Application & Drying Instructions:

Apply using gloves, spatula, trowel, or caulking gun. Shape and smooth with water. For best results, allow to dry at 90–150°C (overnight for large sections). Small repairs (<500g) can be fired directly.

Fiberfrax LDS Moldable is an excellent solution for industrial insulation and refractory maintenance tasks where performance, durability, and ease of application are essential.