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eBay£120.00Visit shop Octoral PF131 + H23 Grey HS Primer Surfacer with Very Fast Hardener 4Litre Kit
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The Octoral PF131 + H23 HS Primer Surfacer is an essential tool for professional automotive refinishers and serious DIY enthusiasts looking to achieve a factory-grade finish on metal substrates. This 2K polyurethane high-filling surfacer excels at leveling imperfections and providing a robust base for topcoat application, though it requires precise mixing ratios and proper safety equipment for safe, effective use in a controlled environment.
| Colour | Grey |
|---|---|
| Model Part Number | PF131B-3 |
| Brand | Octoral |
It is recommended to apply a dedicated epoxy or acid primer to bare metal before using the PF131 surfacer to ensure maximum corrosion resistance.
Generally, P400 to P600 is suitable for most basecoat applications depending on the paint system manufacturer's recommendations.
It is formulated for automotive refinish topcoats, but always perform a test panel if using a non-Octoral paint system.
Yes, depending on the specific application temperature and viscosity needs, a suitable Octoral thinner should be added according to the technical data sheet.
Drying times vary based on ambient temperature and humidity; typically, it can be sanded after 2-4 hours, though overnight drying is often preferred for optimal hardness.
Check your spray distance; moving the gun too far from the panel can cause the product to dry before it hits the surface.
Verify that the surface was properly cleaned with a wax and grease remover and adequately abraded before the surfacer was applied.
Ensure the shop temperature is within the recommended range and that the mixing ratio of hardener to surfacer is accurate.
To achieve the best results, ensure the surface is thoroughly degreased and sanded before application. The PF131 must be mixed strictly according to the Octoral technical data sheet with the H23 hardener to ensure proper chemical cross-linking. After spraying, clean your equipment immediately with a high-quality gun cleaner to prevent the 2K mixture from hardening inside the fluid passages. Store the components in a cool, dry place away from direct sunlight, and ensure lids are sealed tightly after every use to prevent moisture contamination.
