Basic Parameters
1. Appearance: Cast iron color two-part putty paste
2. Curing Mechanism: Modified epoxy resin system, room temperature curing after mixing Part A and Part B. Weight ratio 7:1, volume ratio 4:1, 60 minutes working time at 25℃. No heating or welding required.
3. Packaging Specification: 500g per set (Part A + Part B)
4. Brand Attribute: TONSAN (sub-brand of H.B.Fuller USA), professional cold repair compound for cast iron.
5. Physical Properties: Density 1.62g/cm³, Hardness 80 Shore D, continuous service temperature -60℃~160℃. Machinable after 24-hour full curing, full load bearing available in 48 hours.
Core Product Features
1. Specially formulated for cast iron with consistent color matching
Filled with high-purity cast iron powder, the repaired area matches the color of gray cast iron and ductile iron perfectly, achieving integrated visual effect for equipment housings and visible parts.
2. High-strength cold welding & post-curing machinability
Compressive strength up to 110MPa with strong bonding force as an alternative to traditional electric welding. Fully cured compound supports turning, milling, drilling, grinding and boring for dimensional error correction.
3. Excellent wear resistance & medium stability
Dense non-shrink cured layer resists kerosene, weak acid & alkali, moisture and light oil contamination. Great anti-abrasion and anti-impact performance for long-term dynamic load operation of bearing seats and sleeves.
4. Easy on-site construction without thermal deformation
Thixotropic putty prevents sagging on vertical and overhead surfaces. Cold repair avoids welding deformation and secondary cracking of cast iron workpieces, enabling quick maintenance without complete equipment disassembly.
5. Dual function of defect filling and anti-corrosion sealing
Seals porosity, shrinkage holes and loose casting gaps to block liquid penetration, meanwhile repairs rust pits for long-term metal corrosion protection.
Application Scenarios
1. Machine tool industry: Repair of blowholes, sand holes and cracks on cast iron machine beds, pump bodies and valve bodies;
2. Load-bearing transmission parts: Restore worn bearing seats, shaft holes and flanges to original assembly tolerance;
3. Construction machinery: Emergency cold repair for cracked engine blocks, gearboxes and cast iron housings;
4. Foundry industry: Rework of defective castings for regeneration, effectively reducing casting scrap loss.
Our experienced engineers and technical specialists are here to provide professional guidance, product selection, and application support tailored to your specific requirements.
