Basic Parameters
1. Appearance: Silver aluminum two-component putty paste
2. Curing Mechanism: Modified epoxy resin filled with high-purity aluminum powder, room-temperature curing after mixing Part A and Part B. Weight ratio 6:1, volume ratio 4.5:1, 30 minutes working life at 25℃. Fully cured in 24 hours, full load performance reached in 72 hours.
3. Packaging Specification: 250g per set (Part A + Part B)
4. Brand Attribute: TONSAN (sub-brand of H.B.Fuller USA), professional cold repair compound specially for cast aluminum and aluminum alloy.
5. Physical Properties: Density 1.50g/cm³, Hardness 87 Shore D, compressive strength 99.6MPa. Continuous service temperature: -60℃ ~ 186℃, zero shrinkage after curing, machinable for turning, milling, drilling and grinding.
Core Product Features
1. Aluminum-specific formula with perfect color matching
Filled with high-purity aluminum powder, the repaired area matches the color of cast aluminum and die-cast aluminum perfectly for invisible repair, ideal for engine blocks and exposed aluminum equipment housings.
2. Cold repair instead of hot welding to avoid substrate damage
No high-temperature welding required, preventing aluminum burn-through, thermal deformation and thermal stress cracks. Thixotropic putty will not sag on vertical and overhead surfaces for on-site maintenance without complete equipment disassembly.
3. Available for precision secondary machining after curing
Dense and non-shrink cured layer supports turning, drilling, grinding and boring, accurately restoring tolerance for worn aluminum bearing seats, shaft holes and flanges.
4. Excellent medium resistance & wear durability
Resists engine oil, hydraulic oil, moisture and weak acid/alkali erosion. Great abrasion and shock resistance ensures long-term stable operation under hydraulic pressure and dynamic load without debonding or leakage.
5. Dual function of defect filling and anti-corrosion sealing
Seals blowholes, sand holes, shrinkage cavities and cracks of aluminum castings to stop fluid leakage, and forms a protective coating to slow down aluminum alloy oxidation and corrosion.
Application Scenarios
1. Foundry industry: Rework repair of casting defects such as porosity, shrinkage holes and cracks on cast aluminum and die-cast aluminum workpieces;
2. Engine components: Cold repair and leakage stoppage for cracked aluminum engine blocks, oil pans and valve covers;
3. Pump & hydraulic equipment: Pressure-resistant patching for cracked aluminum water pumps, hydraulic valves and radiator channels;
4. Mechanical fittings: Dimensional restoration and anti-corrosion reinforcement for worn aluminum bearing housings, sleeves, flanges and casings.
Our experienced engineers and technical specialists are here to provide professional guidance, product selection, and application support tailored to your specific requirements.
