Loctite PC 3473 Fast Steel Putty - 500g

LOCTITE PC 3473 is a fast-curing, steel-filled, two-component epoxy repair compound designed for rebuilding, repairing and protecting worn or damaged metal components. It is particularly suitable for emergency industrial repairs where rapid restoration of damaged parts is required.

The product is designed for repairing worn components such as shafts, housings, keyways, keyed connections and flanges, as well as damaged castings, pipes and metal fabrications. Its non-sagging consistency allows it to be applied to vertical and irregular surfaces while remaining in position during curing.

Key Features

Two-component steel-filled epoxy repair compound

Fast-curing formulation

Designed for rebuilding worn steel components

Hardens in approximately 10 minutes under specified conditions

Non-sagging paste/putty consistency

Suitable for emergency and maintenance repairs

Can fill cavities and damaged areas

Can be used to renew stripped or damaged threads

Suitable for repairing castings, pipes and metal fabrications

Can be used for machinery levelling

Suitable for sealing leaking pipes in appropriate applications

Typical operating temperature range of approximately -30°C to +95°C

Available in a 500 g can in Henkel's current India listing.

Typical Applications

LOCTITE PC 3473 is intended for a wide range of industrial repair and maintenance applications.

Shaft Repair

It can be used for rebuilding worn areas on shafts where material has been lost through wear or damage. After curing, the repaired area can be machined as appropriate for the application.

Housing Repair

The steel-filled epoxy can be used to rebuild damaged or worn areas of metal housings and similar machine components.

Keyway and Keyed Connection Repair

LOCTITE PC 3473 can be used to rebuild worn or damaged keyways and keyed connections, helping restore the original geometry of the component.

Flange Repair

The material can be applied to damaged flange areas to rebuild missing material and restore suitable surfaces for subsequent maintenance operations.

Pipe Repair

The compound can be used for repairing damaged pipes and, in suitable applications, as a material for sealing leaking pipe sections.

Casting Repair

It can be used to repair defects, cavities and damaged areas in cast-metal components.

Thread Repair

LOCTITE PC 3473 can be used for renewing stripped or damaged threads, subject to the specific application and subsequent machining requirements.

Machinery Levelling

The product can also be used for levelling machinery and filling irregularities where a durable metal-filled repair material is required.

How LOCTITE PC 3473 Works

LOCTITE PC 3473 is a 2K epoxy system, consisting of resin and hardener components. The two components are mixed thoroughly before application.

Once mixed, the material can be applied directly to the prepared metal surface. It develops a hard, steel-filled epoxy repair layer as it cures.

Its relatively fast curing characteristics make it useful for maintenance situations where equipment downtime needs to be minimized. Henkel describes it as a fast-curing material that hardens in approximately 10 minutes under specified conditions.

Surface Preparation

Proper surface preparation is important for achieving good adhesion and reliable repair performance.

Recommended preparation generally includes:

Remove dirt, grease, oil, rust, paint and loose material.

Degrease the surface thoroughly.

Mechanically abrade or roughen the repair area where appropriate.

Remove loose particles and dust.

Ensure the surface is clean and suitable for application.

Mix the two components thoroughly according to the manufacturer's instructions.

Apply the compound firmly to the damaged area.

Shape the material as required before it hardens.

Allow the repair to cure before machining or returning the component to service.

For critical applications, the latest Henkel technical data sheet should be followed for the exact preparation, mixing ratio, curing conditions and machining procedure.

Non-Sagging Formulation

An important characteristic of LOCTITE PC 3473 is its non-sagging consistency. This allows the material to remain where it is applied rather than flowing away from vertical or irregular repair areas.

This makes it particularly useful for repairing:

Vertical surfaces

Damaged housings

Shaft surfaces

Flanges

Pipe sections

Castings

Irregular metal components

Henkel specifically identifies the product as non-sagging.

Temperature Resistance

Henkel's current product information gives a typical operating range of approximately:

-30°C to +95°C (-22°F to +200°F).

The actual suitability of a repair depends on the complete service conditions, including temperature cycling, mechanical loading, chemicals, pressure and substrate condition.

Advantages for Industrial Maintenance

Fast Repair

The fast-curing formulation makes PC 3473 useful for emergency maintenance and applications where long curing periods are undesirable.

Steel-Filled Formulation

The steel reinforcement makes it suitable for rebuilding and repairing a variety of steel and metal components.

Versatile Repair Material

One product can be used for several maintenance applications, including shaft rebuilding, housing repair, keyway repair, flange repair, cavity filling and casting repair.

Non-Sagging Application

The putty-like consistency helps keep the material in position during application and curing.

Emergency Maintenance

Henkel specifically describes EA 3473/PC 3473 as suitable for emergency repairs.

Typical Industries

LOCTITE PC 3473 can be used in industrial maintenance and manufacturing applications involving:

General industrial machinery

Pumps and rotating equipment

Shafts and housings

Pipes and fittings

Flanges

Cast-metal equipment

Manufacturing machinery

Plant maintenance

Equipment repair

Mechanical maintenance

Henkel lists industrial manufacturing among the related market segments.

Product Identification

Henkel's current product information uses both LOCTITE PC 3473 and LOCTITE EA 3473 references in its product/documentation ecosystem. The PC 3473 India listing identifies the product as a fast-cure, steel-filled 2K epoxy adhesive, while the EA 3473 documentation describes it as a fast-setting steel-filled putty for worn or damaged parts.

Packaging

Henkel's India product page currently lists:

LOCTITE PC 3473 – 500 g Can

Part/IDH: 680036

Packaging and availability can vary by market, so the package size should be confirmed before listing it for sale.

Important Application Consideration

LOCTITE PC 3473 is primarily an industrial repair and metal-rebuilding material. It should not automatically be considered a substitute for welding, structural replacement or an engineered repair.

For pressure-containing pipes, safety-critical machinery, structural components or highly loaded assemblies, the repair should be evaluated according to the equipment manufacturer's requirements and applicable engineering procedures.

Product Summary

LOCTITE PC 3473 is a fast-curing, steel-filled 2K epoxy repair compound designed for rebuilding worn and damaged metal components. It is suitable for shafts, housings, keyways, flanges, pipes, castings and other industrial equipment. Its non-sagging formulation, approximately 10-minute hardening time and operating range of -30°C to +95°C make it a practical solution for fast industrial maintenance and emergency metal repairs.