U-Pol High Build Primer Paint - White - 450ml
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eBay4 X U-Pol HIGH5 1K Ready For Use WHITE High Build Primer Paint 450ml UPOL
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OnBuy.com4 X U-Pol High5 1K Ready For Use High Build Primer Paint 450Ml Upol White 5060859872499
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Product Information
Full details
The U-Pol High Build Primer is designed for automotive professionals and serious DIY enthusiasts who need a reliable, high-performance base for spot and smart repairs. Its primary benefit is providing a professional-grade, high-build finish directly from a convenient 450ml aerosol can, eliminating the need for complex spray equipment; however, users should note that as a 1K product, it requires proper ventilation and careful application to avoid overspray in confined spaces.
All features
| Colour | White |
|---|---|
| Model Part Number | HIGHW/AL |
| Brand | U-Pol |
Extended Product Information
FAQs
Can I use this on bare metal?
Yes, but for long-term corrosion resistance on large areas of exposed bare metal, an etch primer is recommended first.
How long should I wait before sanding?
Under normal conditions, it is typically ready to sand within 30-60 minutes, though it is best to allow full curing for optimal hardness.
Can this be used on plastic bumpers?
Yes, it is suitable for plastic repairs, provided the surface has been properly cleaned and prepped with a plastic adhesion promoter if necessary.
Is this a 1K or 2K primer?
This is a 1K (one-component) primer, meaning it does not require a hardener or activator.
What is the recommended sanding grit?
For best results, use P400-P600 wet or dry sandpaper to achieve a smooth finish before applying the topcoat.
Troubleshooting
Nozzle clogging or uneven spray pattern
Invert the can and spray for a few seconds to clear the valve, or remove the nozzle and clean it with a solvent-based cleaner.
Primer surface appears rough or 'sandy'
This is likely caused by spraying from too far away; move the can slightly closer to the surface and ensure even, overlapping passes.
Poor adhesion to the surface
Verify that the surface was properly sanded to provide a mechanical key and that all wax and grease were completely removed prior to application.
Pros and Cons
Pros
- Eliminates the need for spray guns and compressors
- Excellent filling capabilities for surface irregularities
- Dries quickly for rapid project completion
- Easy to sand for a professional finish
- Economical solution for spot and smart repairs
Cons
- Limited to smaller repair areas
- Requires significant ventilation during use
- Not intended for full-panel refinishing
- 1K formulations have lower chemical resistance than 2K primers
Setup, Compatibility & Care
Before application, ensure the area is clean, dry, and free from silicone, wax, and grease. Use a high-quality wax and grease remover to prep the metal or plastic surface. Shake the aerosol can well to ensure the pigment and fillers are properly suspended. After each use, invert the can and spray for 2-3 seconds to clear the nozzle and prevent clogging. Store the product in a cool, dry place, keeping the nozzle free from dried paint buildup. This primer is compatible with most standard automotive topcoats, but always test on a small sample area first if you are unsure of the topcoat's chemical reaction.