UPOL Thinners

The UPOL Brand for Professionals

Specializing in the manufacture of automotive body treatment products, UPOL enjoys a worldwide reputation. Present in over 100 countries for more than 70 years, the brand has built solid expertise and earned the trust of professionals across the industry. Through its know-how and continuous innovation, UPOL develops solutions tailored to the modern challenges of automotive repair.

UPOL offers a wide range of products including paints, varnishes, hardeners, and thinners. Their effectiveness and durability are highly praised by professionals. The UPOL thinners stand out for their ability to quickly dilute paints while maintaining an environmentally friendly composition.

Why Add a Thinner?

A thinner is a liquid added to paint to achieve the desired viscosity and improve flow. Made from alcohol and solvent, it is used with solvent-based products (paints, varnishes, primers) before application. Reserved for professional use, it ensures a smooth, uniform finish free of visible defects.

It enhances color absorption, prevents brush marks, and makes cleaning tools easier after application. A good thinner also allows precise control of color shades.

What UPOL Thinner Offers

• Compatible with paints, varnishes, and hardeners

• Fast solvent evaporation

• Reduced drying mist

• Variable drying speed (fast, slow, or normal)

• Available in several formats (5L, 1L, 0.5L…)

Results Achieved with UPOL Thinners

• Flawless, defect-free finish

• Excellent paint adhesion and gloss

• Easier polishing

• Reduced paint consumption

• Cost savings

• Efficient equipment maintenance

Steps for Applying Your Thinner

1. Prepare and clean the surface to be painted; straighten panels if necessary.

2. Sand with a sanding block to remove the old coating.

3. Apply a primer if needed.

4. Dilute the paint according to UPOL’s recommended ratios.

5. Spray the diluted paint in several coats, allowing drying time between each.

6. Finish with a protective clear coat.

Tips for a Successful Paint/Thinner Mix

• Choose a thinner compatible with the paint used.

• Always consult the UPOL technical data sheet.

• Adjust the thinner volume based on the surface area to be treated.

• Do not exceed 20% dilution to preserve the original color.

• Never mix different thinners together.

• Clean your tools after use.

• Always wear appropriate protective gear (glasses, gloves, mask).

Body Shop Favorites on ColorBox

• S2045/5 Universal Thinner

• BLEND/AL Aerosol Blending Thinner

Do Not Confuse Thinner with Degreaser

A degreaser—either water-based or solvent-based—is used to remove dust and impurities before painting or varnishing. The most popular UPOL degreasers include:

• S2001/5 Fast Body Degreaser

• S2002/5 Slow Degreaser

Our team of experts is available to help you choose the thinner best suited to your needs. Contact us for any information or professional advice.