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Polarion 2K polyurethane exterior clear is an M.L. Campbell POLARION X 2K acrylic exterior polyurethane designed as a high-performance wood finish. It is specified for entrance doors, garage doors, trim, millwork, or any exterior wood surface that needs to resist the toughest weather. This clear topcoat provides a way to protect exposed wood while maintaining a clear appearance on those exterior components. Because it is built as an acrylic polyurethane system, it delivers a durable film suited to demanding exterior applications where long-term performance is important. The product is part of the ML Campbell clear topcoats line, so it fits into finishing systems where a clear exterior protective layer is required over properly prepared wood surfaces.
The POLARION X 2K acrylic exterior polyurethane uses a 5:1 catalyst mix ratio, which defines how the product is combined with its catalyst before spraying. This fixed ratio allows a repeatable mixing process so the coating can cure as intended on each job. No solvent reduction is required based on spray conditions, so the product can be prepared to the specified ratio without thinning for typical spray setups. That reduces mixing steps when setting up to finish entrance doors, garage doors, trim, or millwork, and supports consistent film build across multiple exterior pieces.
M.L. Campbell POLARION X 2K acrylic exterior polyurethane is described for entrance doors, giving those high-visibility elements a clear protective layer suited to exterior weather. The same formula is specified for garage doors, so large exposed door assemblies can be finished with a matching clear system intended to resist the toughest weather. Trim applications benefit from the superior scratch, mar, chemical, and moisture resistance, since exterior trim often sits where it can be bumped or exposed to runoff. Millwork such as exterior casings or custom exterior wood details are also listed uses, allowing one product to serve multiple exposed wood elements on a project. Because it is a clear topcoat, it integrates into finishing schedules where a transparent exterior protective layer is needed over prepared wood.
The superior scratch and mar resistance described for this product supports repeatable results by helping the cured film stay intact when doors and trim are used daily. Chemical and moisture resistance work together to keep the surface performing when it encounters spills or outdoor moisture, limiting finish damage that would otherwise lead to rework. Excellent UV resistance directly supports exterior durability by helping the film handle sunlight exposure over time, which is important on entrance and garage doors facing sun during the day. The non-yellowing acrylic polyurethane technology maintains clarity, so installers can expect the clear look to remain closer to its original appearance when used on stained or natural wood. The 5:1 catalyst mix ratio simplifies batching because every mix follows the same proportion, and the extended pot life aids production by allowing more working time with each catalyzed batch during spray sessions.
POLARION X 2K acrylic exterior polyurethane is a clear topcoat wood finish for exterior use, serving as a protective layer on entrance doors, garage doors, trim, millwork, and other exterior wood surfaces.
The exterior clear polyurethane is described for entrance doors, garage doors, trim, millwork, or any exterior wood surface needing resistance to the toughest weather conditions.
The 5:1 catalyst mix ratio sets a defined proportion between product and catalyst, supporting consistent curing behavior and predictable film performance across batches.
The exterior clear finish requires no solvent reduction based on spray conditions, so it can be mixed at the 5:1 ratio and sprayed without thinning steps in typical setups.
The superior scratch, mar, and chemical resistance help the cured film withstand contact and exposure, which supports appearance and performance on frequently used exterior components.
The non-yellowing technology and excellent UV resistance help the clear film stay more stable under sunlight, which benefits exterior doors, trim, and millwork over time.
This POLARIONX EXTERIOR2K-URETHANECLEAR GLOSS, identified as ML Campbell 000C38578-16, pairs acrylic polyurethane chemistry with a 5:1 catalyst system and extended pot life. For entrance doors, garage doors, trim, millwork, or other exterior wood surfaces needing resistance to the toughest weather, its combination of scratch, mar, chemical, moisture, UV resistance, and non-yellowing performance offers a clear topcoat solution that supports demanding exterior wood finishing work.
Sold In: 1 Gallon