Mirka Paint Compounds

Mirka Polarshine: Professional-Grade Paint Compounds Built for the Finish

When it comes to paint correction and surface refinishing, Mirka occupies a unique position in the industry. As a Finnish manufacturer with roots stretching back over eight decades, Mirka is widely regarded as the only company that develops and produces abrasives, tools, and polishing compounds all under one roof — meaning their paint compounds are engineered from the ground up to work as part of a complete surface finishing system, not as an afterthought.

At the heart of Mirka's paint compounds lineup is the Polarshine® series — a professional-grade range of cutting and polishing compounds specifically formulated to follow Mirka's own sanding steps and deliver a flawless, high-gloss result. What sets Polarshine apart from conventional compounds is its water-based, silicone-free chemistry. Unlike solvent-based competitors, Polarshine compounds remove scratches permanently rather than simply masking them, and they won't lose their gloss after the surface is cleaned with a degreaser.

A Compound for Every Stage of Paint Correction

The Polarshine lineup is organized by cutting power, giving professionals the ability to match the compound precisely to the sanding scratch or surface defect at hand. Coarseness grades span a wide spectrum, from finer finishing compounds like Polarshine 3 and Polarshine 5 up to the aggressive cutting power of Polarshine 35 and Polarshine 45 for demanding industrial and marine applications. Key options in the range include:

• Polarshine 10 – A versatile, all-paint-system compound suitable for scratch-resistant clear coats. Designed to keep surface temperature low during machine polishing while removing marks permanently. Water-based and silicone-free, it can be applied by machine or by hand.
• Polarshine 15 – A coarse compound engineered to remove P1200 and finer scratches from clear coats, gel coats, high gloss lacquers, and single-stage topcoats — polishing defects out rather than filling them.
• Polarshine 20 – A medium-coarse compound optimized for fresh and soft clear coats, striking the balance between cutting efficiency and final finish quality.
• Polarshine 35 – A coarse compound ideal for gel coats, high gloss lacquers, and composites, with special emulsifying properties that reduce the risk of the compound drying out or overheating the surface.
• Polarshine 45 – A fast-cutting compound designed for one-step polishing of white and light-colored gel coat surfaces, removing sanding scratches from P600 and finer quickly and permanently.
• Polarshine 12 Black – Specifically developed for dark and high-gloss black paint, this compound eliminates residual haze that plagues conventional compounds on dark surfaces, enhancing depth and vibrancy for a mirror-like finish.

Why Water-Based Chemistry Matters

All Polarshine compounds are produced in Finland and share a water-based formulation that offers meaningful advantages in professional shop environments. They leave no unpleasant solvent scent, are better for the environment, and do not contain benzene. The result is a safer working atmosphere without any compromise in performance — a meaningful consideration for body shops and detailers working in enclosed spaces day after day.

Designed to Integrate With the Full Mirka System

Because Mirka designs its abrasives, tools, and compounds together, Polarshine products are optimized to follow Mirka's sanding sequences. Working with fine Mirka abrasive grits and Polarshine compounds in sequence allows technicians to move from scratch removal through to a true high-quality finish in fewer steps, reducing labor time and material consumption on every job.