Restoration Shop Medium Urethane Reducer Quart — Mid‑Temp 70–85°F, Professional-Grade for Acrylic Enamel & Clearcoat

Restoration Shop UR70 Medium Urethane Reducer (Quart) is a mid-temperature viscosity reducer formulated to thin urethane-based automotive paints, primers, and clearcoats for use in 70–85°F conditions.

Whether you are spraying acrylic enamel, acrylic urethane, urethane basecoat, or clearcoat, the UR70 Medium Urethane Reducer is engineered to deliver consistent flow, atomization, and leveling at moderate ambient temperatures. Made in the U.S.A., this professional-grade reducer is compatible with Restoration Shop and Custom Shop coating systems and can also be used with many other urethane and epoxy products to help achieve a smooth finish.

How does UR70 improve sprayability at mid-range temperatures?

UR70 balances evaporation and flow to prevent premature drying or sagging when the air temperature sits between 70 and 85°F. Using the right reducer helps the spray pattern form evenly and promotes proper film build for a professional look.

• Formulated for 70–85°F working range
• Improves atomization for consistent spray patterns
• Reduces orange peel and pinholing when mixed correctly
• Helps maintain proper flash and dry times in mid temps

Which coatings can I thin with UR70?

UR70 is designed primarily for urethane-based automotive coatings: acrylic enamel, acrylic urethane, urethane basecoat, and urethane clearcoat systems. It also works effectively with many urethane primers and compatible epoxy primers, offering broad utility across restoration and refinish jobs.

• Compatible with Restoration Shop and Custom Shop paints and clears
• Suitable for urethane primers and some epoxy primers
• Works with OEM-style urethane basecoats and clearcoats
• Can be used to adjust viscosity for different application methods

How should I use UR70 for best results?

Start by consulting the paint manufacturer’s recommended mix ratio and adjust reducer amount based on gun type, nozzle size, and environmental conditions. Mix thoroughly, strain before spraying, and test on a panel to confirm spray pattern and drying behavior before full application.

• Follow paint system mix ratios and add reducer incrementally
• Strain mixtures to remove contaminants
• Test-spray on a card or panel to fine-tune viscosity
• Adjust gun settings (pressure/nozzle) for optimal atomization

Will UR70 affect final finish or durability?

When used as directed, UR70 helps coatings lay down smoothly without compromising the formulation’s cured properties. Proper thinning and application promote better leveling and adhesion; however, always adhere to the paint and hardener manufacturer’s instructions to preserve performance and longevity.

• Promotes improved leveling for a smoother finish
• Designed to maintain original coating performance when used correctly
• Does not replace required hardeners or activators
• Improper mix ratios can affect cure and appearance—follow guidelines

Who is this for: UR70 Medium Urethane Reducer is aimed at professional refinishers, body shop technicians, and experienced DIYers who work in moderate climates and need a dependable reducer for urethane and acrylic systems. It is particularly useful for projects requiring consistent spray behavior and a high-quality surface before clearcoat. For best results, pair UR70 with Restoration Shop or Custom Shop coatings and follow each product’s technical data sheets for mix ratios, pot life, and safety precautions.