Steelmaster 43HT, EP22, EP76M, EP30C — Metal-Filled Epoxies for Repairing and Rebuilding Metal Parts

Country: · Model: Steelmaster 43HT / EP22 / EP76M / EP30C

The metal-filled two-component epoxies Steelmaster 43HT, EP22, EP76M and EP30C with stainless steel, aluminium or nickel powder repair and rebuild metal parts without welding and heating. After curing they approach the metal they work on in rigidity and machinability.

Steelmaster 43HT: filler — stainless steel; 24–48 h at 24 °C; −51…+204 °C; shear 16.5–17.9 MPa; modulus 3.4–3.8 GPa; 80–90 Shore D
EP22: filler — aluminium; 48–72 h at 24 °C or 2–3 h at 93 °C; −51…+121 °C; CTE 35–40·10⁻⁶ 1/°C
EP76M / EP30C: filler — nickel; EP76M 3–5 days at 24 °C or 2–3 h at 93 °C; shear > 13.8 MPa; 5–10 Ω·cm
Post-cure processing: machining like metal (as intended for the range)

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Technical specifications

Steelmaster 43HT	filler — stainless steel; 24–48 h at 24 °C; −51…+204 °C; shear 16.5–17.9 MPa; modulus 3.4–3.8 GPa; 80–90 Shore D
EP22	filler — aluminium; 48–72 h at 24 °C or 2–3 h at 93 °C; −51…+121 °C; CTE 35–40·10⁻⁶ 1/°C
EP76M / EP30C	filler — nickel; EP76M 3–5 days at 24 °C or 2–3 h at 93 °C; shear > 13.8 MPa; 5–10 Ω·cm
Post-cure processing	machining like metal (as intended for the range)

Specifications are taken from the manufacturer’s technical documentation. Updated 11/06/2026.

Description

Steelmaster 43HT, filled with stainless steel, cures at room temperature in 24–48 h, has a shear strength of 16.5–17.9 MPa, a modulus of 3.4–3.8 GPa, 80–90 Shore D, and works up to +204 °C. EP22 with an aluminium filler cures in 48–72 h at room temperature or 2–3 h at 93 °C, has a CTE of 35–40·10⁻⁶ 1/°C and a range from −51 to +121 °C, and the paste-like EP22ND does not sag. EP76M and EP30C are nickel-filled and electrically conductive (5–10 Ω·cm), so they are used where electrical contact or shielding is needed, and the shear strength of EP76M exceeds 13.8 MPa. Surface preparation consists of degreasing and, where possible, mechanical cleaning.

How to choose

The filler is chosen to match the base material. For stainless steel use Steelmaster 43HT, for aluminium EP22, and for parts that must conduct current EP76M or EP30C. Such systems are recommended for repairing cracks, pits, chips, worn seats, threads and housing parts. For fast fixing of small parts without metal repair there are the cyanoacrylates MB297 and MB306.