Wear Guard High Impact is a high-density, micro-alumina ceramic bead-filled epoxy system with urethane acrylate, designed to protect equipment exposed to severe impact and abrasion.
Its non-sagging putty consistency makes it suitable for repairing and protecting equipment where high impact, compression and wear resistance are required. It is designed for applications involving pumps, scrubbers, screens, chutes, material handling equipment and screw conveyors.
Wear Guard High Impact can be trowelled onto vertical surfaces without sagging and can be applied at a minimum thickness of 6.4 mm. After curing, the repaired surface can be machined, drilled or painted.
Key Features and Benefits
- High impact resistance: Designed for equipment exposed to tremendous impact and flex.
- Extreme wear resistance: Designed for demanding abrasion applications.
- Ceramic-filled epoxy: Contains high-density micro-alumina ceramic beads.
- Non-sag consistency: Creamy putty stays in position during vertical application.
- High compression strength: Designed for demanding equipment protection.
- High impact strength: Formulated for severe impact environments.
- Maximum Vertical Application Thickness: 3/4" (19.05 mm) without sagging
- Machinable after cure: Can be machined, drilled or painted after full cure.
Where Can Wear Guard High Impact Be Used?
Wear Guard High Impact is designed for high-impact and abrasion applications involving:
- Pumps
- Scrubbers
- Screens
- Chutes
- Material handling equipment
- Screw conveyors
Coverage
| Application Thickness | Coverage |
|---|---|
| 6.35 mm (1/4") | Approximately 711 cm²/kg |
Surface Preparation
Thorough surface preparation is important for achieving strong adhesion.
- Clean the surface with isopropanol alcohol or acetone to remove oil, grease and dirt.
- Grit blast using 8–40 mesh grit or grind with a coarse wheel or abrasive disc pad.
- Create a surface profile of approximately 3–5 mils with defined edges.
- Do not feather-edge the existing epoxy.
- Clean the surface again to remove oil, grease, dust and other contaminants.
- Repair the surface as soon as possible after preparation.
For metals exposed to seawater or other salt solutions, grit blast and high-pressure water blast the area, then leave it overnight to allow soluble salts to migrate to the surface. Repeat blasting to remove the salts and perform a chloride contamination test. Soluble salt content should be no more than 40 ppm.
Working Conditions
The ideal application temperature for Wear Guard High Impact is 13°C to 32°C.
In cold working conditions, heat the repair area to approximately 38°C to 43°C before applying the epoxy and maintain this temperature during curing.
Applying epoxy below 21°C increases functional cure and pot life times. Applying above 21°C shortens them.
Mixing Instructions
Wear Guard High Impact has a 2.5:1 mixing ratio by both volume and weight.
- Add the Hardener to the Resin.
- Mix thoroughly using a screwdriver or similar tool.
- Continuously scrape material from the sides and bottom of the container.
- Continue mixing until a uniform, streak-free consistency is achieved.
For intermediate-size units, place the Resin and Hardener on a flat, disposable surface and mix using a trowel or wide-blade tool.
For larger buckets, use a T-shaped mixing paddle or suitable propeller mixer and thoroughly fold the putty until the Resin and Hardener are completely homogeneous.
Application
Spread the mixed Wear Guard High Impact over the prepared repair area at a minimum thickness of 6.4 mm.
Work the material firmly into the substrate to maximise surface contact.
After curing, the repaired surface can be machined, drilled or painted.
Vertical Surface Applications
Wear Guard High Impact can be trowelled onto vertical surfaces to a thickness of up to 19 mm without sagging.
Bridging Large Gaps and Holes
For large gaps or holes, place suitable reinforcement between the repair area and Wear Guard High Impact before application.
- Fiberglass sheet
- Expanded metal
- Mechanical fasteners
Alternative Metal Priming Method
Where grit blasting is not possible and expandable metal cannot be used, Devcon® Brushable Ceramic can be applied to the metal surface at 11–18 mils as a primer.
Allow the primer to cure for approximately 2 hours, or until a fingernail can almost depress the primed surface. Apply Wear Guard High Impact immediately afterwards.
Do not allow the primer coat to fully cure before applying Wear Guard High Impact.
Cure Times
- Pot life at 24°C: 30 minutes
- Functional cure: 6–8 hours
- Full cure: 16 hours
- Recoat time: 4–6 hours
For maximum physical properties, cure at room temperature for 2.5 hours, followed by a heat cure for 4 hours at 93°C.
Temperature Resistance
Wear Guard High Impact has a stated service temperature of up to 149°C.
Important Product Considerations
- Minimum application thickness is 6.4 mm.
- Vertical applications can be trowelled up to 19 mm without sagging.
- Ideal application temperature is 13°C to 32°C.
- Cold applications may require heating of the repair area.
- Below 21°C, functional cure and pot life times increase.
- Above 21°C, functional cure and pot life times decrease.
- For maximum physical properties, follow the specified heat-cure procedure.
Technical Specifications
| Specification | Technical Data |
|---|---|
| Product | Wear Guard High Impact |
| Product Type | High-density micro-alumina ceramic bead-filled epoxy system with urethane acrylate |
| Colour | Dark Grey |
| Mix Ratio by Volume | 2.5:1 |
| Mix Ratio by Weight | 2.5:1 |
| Mixed Viscosity | Non-sag putty |
| Pot Life @ 75°F | 30 minutes |
| Recoat Time | 4–6 hours |
| Functional Cure | 6–8 hours |
| Full Cure | 16 hours |
| Specific Gravity | 2.23 g/cm³ |
| Service Temperature | Up to 149°C |
| Ideal Application Temperature | 13°C to 32°C |
| Minimum Application Thickness | 6.4 mm |
| Maximum Vertical Application Thickness | 19 mm without sagging |
| Coverage | Approximately 711 cm²/kg at 6.35 mm thickness |
Important: Always read the current product Technical Data Sheet and Safety Data Sheet before surface preparation, mixing or application.
Colour accuracy disclaimer: We have taken care to display the most accurate visuals of our products. However, we are not responsible for the colour accuracy of the device you are viewing our swatches on. These variations arise due to different computer monitors and devices (make, model and technology, as well as resolution, contrast and brightness control settings) in much the same way a scan will differ from an original image and a colour photocopy. Furthermore, coatings can exhibit variation in perceived colour depending on gloss level and application method. If you require a very specific colour match, please make your selection via actual swatches and colour boards available at our showroom.
Product Disclaimer: Ensure you read all product, technical and safety data sheets prior to application as liability falls on the applicator. All products must be applied in accordance with manufacturer’s recommended method.
