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eBay£77.62Visit shop Octoral PF131 HS Primer Surfacer High Build 3Litre Black 2K Polyurethane Filling
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The Octoral PF131 Black HS Primer Surfacer is designed for professional automotive technicians and body shop specialists who require a high-build filling surfacer to achieve a smooth, defect-free substrate before painting. Its primary advantage is its dual-purpose nature, acting as both a high-fill sandable primer and a time-saving non-sanding surfacer; however, users should note that as a 2K polyurethane system, it requires precise mixing with a dedicated hardener to ensure proper curing and chemical resistance.
| Colour | Black |
|---|---|
| Model Part Number | PF131B-3 |
| Brand | Octoral |
It is recommended to apply an etch or epoxy primer to bare metal before using this surfacer to ensure maximum corrosion resistance and adhesion.
No, the 3L container contains the primer base only; the appropriate Octoral hardener must be purchased separately.
Drying times vary based on temperature and hardener choice; typically, it can be sanded after 3-5 hours at 20°C.
Yes, once properly cured and sanded, this primer is fully compatible with modern waterborne and solvent-borne basecoat systems.
While the black color helps identify highs and lows during sanding, using a dry powder guide coat is still recommended for precision work.
Ensure the substrate was sanded properly and thoroughly degreased before application.
Verify the mixing ratio of the hardener and check the ambient workshop temperature, as cold conditions can delay curing.
Adjust the spray gun air pressure or thinning ratio; if using as a non-sanding coat, ensure it is applied in thin, even layers.
To ensure peak performance, always store the container in a cool, dry area away from direct sunlight. Before use, ensure the surface is thoroughly cleaned with an appropriate degreaser. Because this is a 2K polyurethane, strictly follow the technical data sheet for the recommended hardener and reducer mixing ratios. Always use a high-quality spray gun and clean it immediately after use with a lacquer thinner to prevent the product from curing inside the nozzle. Ensure the workspace is well-ventilated and that technicians wear a supplied-air respirator, as is standard practice for 2K automotive paints.
