Devcon Plastic Steel Putty SF 500g
Devcon Plastic Steel Putty SF 500g is a steel-filled, fast-setting epoxy putty designed for filling, rebuilding, and bonding metal surfaces. Developed for industrial maintenance, it helps restore worn or fatigued metal components, repair damaged castings, and rebuild pump bodies, valve housings, and bearing components.
This Devcon plastic steel putty SF combines rapid setting, chemical resistance, and excellent workability. It can be applied to vertical surfaces without sagging at the recommended thickness and machined to achieve a metallic finish after curing.
Available from New Tech International is the largest industrial products supplier in the Middle East , this 500g industrial epoxy putty is a practical solution for suitable metal repair and restoration applications.
Key Features of Devcon Plastic Steel Putty SF
- Fast-Setting Formula: Steel-filled epoxy putty designed for rapid industrial repairs.
- Metal Rebuilding: Fills, bonds, and rebuilds damaged metal surfaces.
- Multi-Surface Bonding: Adheres to aluminum, concrete, and many other metals when properly prepared.
- Chemical Resistance: Resistant to many chemicals, including most acids, bases, solvents, and alkalis, within its specified limitations.
- Vertical Application: Can be applied up to ¼ inch (6.4 mm) thick without sagging.
- Machinable Finish: Can be machined, drilled, and polished after reaching the required cure.
- Full Cure: Reaches full cure in approximately 16 hours under the specified conditions.
Whether you need a quick repair steel putty for industrial maintenance or a machinable epoxy for restoring damaged components, Devcon SF offers a specialized repair solution.
Industrial Applications of Devcon SF 500g
Devcon SF 500g is intended for industrial repair and maintenance tasks involving worn, damaged, or fatigued metal components.
Typical applications include:
- Worn Metal Restoration: Rebuilding suitable metal surfaces affected by wear or fatigue.
- Casting Repairs: Patching damaged castings and filling localized defects.
- Pump Body Repairs: Restoring damaged areas of compatible pump housings.
- Valve Body Rebuilding: Repairing suitable valve components and surfaces.
- Bearing Components: Restoring bearing journals and races.
- Jigs and Fixtures: Manufacturing or repairing industrial jigs and fixtures.
- Metal Bonding: Filling gaps and joining compatible components when the application permits epoxy bonding.
The repair method should be selected according to the component’s condition, operating loads, and service requirements.
Devcon Fast Curing Putty for Industrial Maintenance
Industrial repairs often require materials that minimize maintenance delays while providing a durable, machinable finish.
Devcon fast curing putty is designed to set rapidly and allow subsequent machining after sufficient curing. Its steel-filled formulation makes it suitable for rebuilding damaged metal surfaces and restoring components that require additional shaping.
The product reaches full cure in approximately 16 hours under the specified conditions. Machining may begin after at least one hour when the material has developed sufficient hardness and the manufacturer’s instructions permit it.
For applications requiring a fast set metal epoxy, Devcon SF offers an option for suitable repair work where curing time and machinability are important considerations.
Super Fast Steel Epoxy for Metal Rebuilding
This super fast steel epoxy is formulated to fill damaged areas and rebuild metal surfaces that require further finishing.
Its putty consistency makes it easy to work into repair areas and helps maintain the applied shape on vertical surfaces.
Once adequately cured, the material can be machined to obtain the required dimensions and metallic finish.
Common restoration tasks include patching castings, repairing pump and valve bodies, and rebuilding suitable bearing components.
How to Apply Devcon Plastic Steel Putty SF 500g
Correct surface preparation, mixing, application, and curing are essential for achieving satisfactory repair results.
Always follow the manufacturer’s technical instructions and specified resin-to-hardener mixing ratio.
Step 1: Prepare the Repair Surface
Inspect the damaged component and remove loose material, grease, oil, and other contaminants according to the manufacturer’s surface preparation instructions.
Confirm that the substrate and operating conditions are suitable for an epoxy repair.
Step 2: Mix the Epoxy Putty
Mix the resin and hardener thoroughly using the specified mixing ratio until a uniform consistency is achieved.
For large industrial containers weighing 25 lb, 30 lb, or 50 lb, the supplied application guidance recommends a T-shaped mixing paddle or a propeller-type Jiffy Mixer Model ES attached to an electric drill.
Move the mixing tool vigorously up and down until the resin and hardener form a homogeneous mixture.
For the 500g package, use the mixing procedure specified for that package.
Step 3: Apply the Mixed Material
Spread the mixed putty over the repair area and press it firmly into the substrate to maximize surface contact.
Work the material into the damaged section to fill suitable cavities and irregularities.
Step 4: Assemble the Components
When bonding mating parts, assemble them within the recommended working time.
Apply firm pressure to minimize gaps and ensure good contact between the surfaces.
A small amount of epoxy flowing out around the edges indicates that the gap has been filled.
Step 5: Allow the Material to Cure
Allow the epoxy to cure according to the specified conditions.
Devcon Plastic Steel Putty SF reaches full cure in approximately 16 hours, after which it can be machined, drilled, or painted as directed.
Do not return repaired equipment to service until the required curing and repair acceptance criteria have been met.
Repairing Large Gaps and Holes
When repairing large gaps or holes, additional reinforcement may be necessary to support the epoxy.
The supplied application instructions recommend placing one of the following between the repair area and the putty before application:
- Fiberglass sheet.
- Expanded metal.
- Suitable mechanical fasteners.
Select the reinforcement method according to the repair design and the condition of the component.
Applying Devcon SF to Vertical Surfaces
The putty consistency makes Devcon plastic steel putty SF suitable for vertical repair applications.
It can be troweled onto vertical surfaces at a thickness of up to ¼ inch (6.4 mm) without sagging under the specified conditions.
This property is useful when repairing suitable equipment housings, castings, and other components that cannot be positioned horizontally.
Curing Time and Temperature Considerations
Temperature affects both the working time and curing behavior of epoxy materials.
At approximately 70°F (21°C):
- Temperatures below 70°F (21°C) increase working time and functional curing time.
- Temperatures above 70°F (21°C) reduce working time and functional curing time.
For maximum physical properties, the supplied instructions specify the following curing procedure:
- Cure at room temperature for 2.5 hours.
- Follow with heat curing for 4 hours at 200°F (93°C).
Use this procedure only when the component and repair conditions allow it, and follow the manufacturer’s technical guidance.
Machining and Finishing Instructions
One of the advantages of this industrial steel filler is its ability to undergo machining after adequate curing.
The supplied machining recommendations are summarized below.
| Machining Parameter | Recommended Value |
| Minimum Time Before Machining | At least 1 hour, subject to adequate hardness |
| Lathe Speed | 150 ft/min |
| Cutting Method | Dry |
| Cutting Tools | Carbide |
| Top Rake | 6° ±2° |
| Side/Front Angle | 8° ±2° |
| Roughing Travel Speed | 0.020 |
| Roughing Cut | 0.020–0.060 |
| Finishing Travel Speed | 0.010 |
| Finishing Cut | 0.010 |
| Polishing Material | 400–650 grit emery paper, used wet |
| Achievable Surface Finish | Approximately 25–50 microinches |
Machining settings should be confirmed against the manufacturer’s technical documentation, including the applicable units and equipment requirements.
Chemical Resistance and Product Limitations
Devcon SF provides resistance to many chemicals, including most acids, bases, solvents, and alkalis.
However, the product is not recommended for long-term exposure to concentrated acids or organic solvents.
Chemical compatibility depends on the specific substance, concentration, temperature, exposure duration, and operating environment.
The end user is responsible for determining whether the product is suitable for the intended application and repair process.
Devcon Plastic Steel Putty SF 500g – Technical Specifications
| Specification | Details |
| Product Name | Devcon Plastic Steel Putty SF 500g |
| Brand | Devcon |
| Product Type | Fast-setting, steel-filled epoxy putty |
| Weight | 500g |
| Main Functions | Filling, rebuilding, and bonding metal surfaces |
| Suitable Substrates | Aluminum, concrete, and many metals |
| Full Cure Time | Approximately 16 hours under specified conditions |
| Vertical Application Thickness | Up to 6.4 mm (¼ inch) without sagging |
| Machinability | Machinable after adequate curing |
| Chemical Resistance | Many acids, bases, solvents, and alkalis, subject to limitations |
| Intended Use | Industrial maintenance and metal restoration |
Why Choose Devcon Plastic Steel Putty SF 500g?
When metal components experience wear, localized damage, or surface deterioration, replacement is not always the only maintenance option.
For suitable applications, Devcon plastic steel putty SF 500g provides a steel-filled epoxy material that can fill damaged areas, rebuild surfaces, and be machined after curing.
Its fast-setting formulation, vertical application capability, and compatibility with several substrates make it a versatile choice for industrial repair work.
The final decision to use an epoxy repair should account for the component’s structural requirements, operating conditions, and the manufacturer’s recommendations.
Buy Devcon Plastic Steel Putty SF 500g from New Tech International
Looking for a quick repair steel putty, fast set metal epoxy, or specialized industrial steel filler for maintenance applications?
Devcon Plastic Steel Putty SF 500g provides a fast-setting, steel-filled formulation for repairing and rebuilding suitable metal components.
From casting repairs and pump body restoration to bearing component maintenance, this epoxy putty supports a variety of industrial repair applications when used according to the manufacturer’s instructions.






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