With Rollco´s wide program of aluminum profiles and accessories you can build everything from simple racks and trolleys to machine guards/doors, machine frames, cabinets for flexible work benches and fixtures for advanced automation.
How to Apply Polyurethane?
Polyurethane is a protective finish applied to wood to guard against it wear and other damage. Whether it is oil-based or water-based, it comes in a variety of finishes, from glossy to matte. Application is a straightforward practice of sanding the surface area, applying a coat of poly, and repeating. However, depending on the shape of the surface area, you will have to decide between brushing it on or using a cloth to wipe it on.
Remove old finishes. Strip the wood of any prexisting shellac, lacquer, wax, varnish, or paint. For this, feel free to move your project outdoors for the time being. Work with better air circulation while making your clean-up that much easier.
Sand the wood. Start with a medium (100-grit) sandpaper if the wood feels especially rough. After that, resand it with fine (150-grit) sandpaper, and then again with extra-fine (220-grit) paper. Inspect the wood for any scratches in between each sanding. If necessary, use the extra-fine paper to smooth scratched areas.
Clean up. Vacuum the wood and surrounding area to remove all of the dust created by sanding. Use a soft-brush attachment when vacuuming the wood itself to avoid scratching the surface. Then dampen a lint-free cloth and wipe the wood down to remove any dust that the vacuum missed. Repeat with a second wipe-down using a dry microfiber cloth.
Stir the polyurethane. After you open the can, use a stir stick to mix the polyurethane’s components evenly, which may have settled and separated over time. Always stir, rather than shake. Expect shaking to create bubbles in the liquid, which may be transferred intact to the wood, creating an uneven coat.
Seal the wood. Use a clean container to create a mixture of polyurethane and mineral spirits. Combine two parts polyurethane with one part mineral spirits in the new container. Brush or wipe a single coat of this mixture onto the wood. Wait for it to dry before proceeding.
Pure polyurethane takes roughly 24 hours to dry, but it should take less than that when diluted with mineral spirits.
Sand the wood again. From this point forward, always sand the wood before applying a new coat. Remove any runs, drips, bubbles, or visible brushstrokes that may have developed. Use extra-fine (220-grit) sandpaper to reduce the chance of scratching the surface. Once done, vacuum and wipe the wood again to remove all particles.
Apply the first coat. After sealing the wood, use pure polyurethane. However, continue to pour small batches into a clean container, rather than dipping your brush or cloth directly into the original can. Avoid tainting your main supply with any dust or other particles that your brush or cloth might pick up.
Repeat. Once the first coat has dried, sand the wood again. Then add a second in the same manner. Wait another 24 hours to dry. If you used a brush, two coats is fine. For any areas where a cloth or spray was used, repeat twice for a total of four coats.
2) ELPORT – VOID (Original Mix)