U-Pol D Smooth Metallic Body Filler - 1.1L
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Product Information
Full details
The U-Pol D Smooth Metallic Body Filler is designed for professional auto body technicians and serious DIY enthusiasts who require a durable, high-strength solution for metal surface repairs. Its standout benefit is the inclusion of aluminum particles, which provide excellent structural integrity and a finish that resists environmental degradation; however, users should note that as a polyester-based product, it requires precise mixing ratios with the supplied hardener to ensure a proper cure.
All features
| Model Part Number | U-POL D - Smooth Metallic Body Filler 1.1L tin |
|---|---|
| Brand | U-Pol |
Extended Product Information
FAQs
Can I use this on plastic bumpers?
No, U-Pol D is specifically formulated for metal surfaces and may not adhere properly to flexible plastic or fiberglass.
What is the recommended mixing ratio?
Always follow the instructions provided on the specific tin label, typically expressed as a small percentage of hardener to filler by weight.
How long does it take to sand?
Depending on temperature and thickness, it is usually ready to sand in approximately 20 to 30 minutes.
Can this be applied over rust?
No, all rust must be removed down to bare, clean metal before application to ensure proper adhesion and prevent further corrosion.
Do I need to prime after sanding?
Yes, once the filler is sanded smooth, it should be cleaned and covered with a suitable automotive primer before painting.
Troubleshooting
Filler is not hardening
Check the hardener ratio; if it remains soft, the ambient temperature may be too low or the hardener was not mixed thoroughly.
Surface cracking after drying
Usually caused by applying too thick a layer at once or failing to prep the substrate by sanding; sand down the crack and reapply in thinner, layered coats.
Pinholes in the surface
These are caused by air trapped during mixing; try to fold the filler rather than whipping it when incorporating the hardener.
Pros and Cons
Pros
- Superior strength due to aluminum particle content
- Easy to sand for a seamless, professional finish
- High resistance to environmental factors
- Excellent adhesion to automotive metal surfaces
Cons
- Requires precise mixing with hardener
- Strong chemical odor during application
- Pot life can be short in warm working conditions
Setup, Compatibility & Care
To prepare for use, ensure the surface is clean, dry, and free of rust or grease by sanding the area with 80-grit abrasive. Mix the filler with the specified amount of hardener on a non-porous mixing board until the color is uniform.
- Compatibility: Compatible with most automotive metal substrates. Always test on a small area if working on specialized alloys.
- Application: Apply using a plastic or metal spreader. Avoid returning unused, mixed filler to the tin.
- Care: Store the tin in a cool, dry place with the lid tightly sealed to prevent the resin from hardening prematurely. Clean tools immediately after use with an appropriate solvent before the filler cures.