This is easily done. For protection, two coats are the minimum, but floors and anything else that will see hard wear or occasional moisture should get at least three coats. Use a delicate wash cycle if your washing machine offers this option. Polyurethane fabric, or PUL fabric, is a waterproof fabric, typically polyester, but may be cotton or a polyblend material that has been heat-laminated to a polyurethane layer. They're common for exterior coating formulations. For open-grain woods (like oak, ash, or walnut), you can apply a wood grain filler before the polyurethane, to create an ultra-smooth finished surface. What about a PU designed to be a coating? Water-based polyurethanes don't match well with oil-based stains, so if you're applying over stain you'll want to "rough up" the stained surface slightly before applying your water-based polyurethane, using some synthetic steel wool. It gives a high-gloss “wet-look” finish that is impervious to chemicals and staining. Asking for help, clarification, or responding to other answers. Oil-based polyurethanes are somewhat easier to apply and can be less temperamental than water-based formulas. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. Polyurethanes are commonly available in both oil-based and water-based formulas, and there are minor differences between the two in both performance and application. Another way would be to dip the garment or material into a bowl or bucket … Engineering Stack Exchange is a question and answer site for professionals and students of engineering. Allow to dry. Wipe-on poly is applied with a clean, lint-free rag. It is a fabric with special fibers used within the weave at specific points, allowing for the fabric to have superior quality and hold against all types of damage and tear. Water-based poly has a milky white look when it goes on but turns clear as it dries. Can I assign any static IP address to a device on my network? Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Take your fabric to a whole new level! PCM could be incorporated into the textiles by coating using polymer such as acrylic, polyurethane, etc, and applied to the fabric. You can also use a rag moistened with mineral spirits (for an oil-based poly) or cheesecloth moistened with denatured alcohol (for a water-based poly). Wash the polyurethane-coated nylon fabric in a washing machine if the soiled area is large. Most efficient and feasible non-rocket spacelaunch methods moving into the future? Wipe it onto the wood, following the grain. http://www.engineeringtoolbox.com/polyurethane-chemical-resistance-d_1878.html, Podcast 302: Programming in PowerPoint can teach you a few things, Which coating best exploits “darker when wet” phenomena, PostGIS Voronoi Polygons with extend_to parameter. Use a toothbrush and scrub the offending area on the nylon. It's best to apply polyurethane to flat (as in level) surfaces so the finish can self-level and is less likely to drip. Shaking a can of polyurethane will introduce numerous bubbles into the product that will show up in your final finish. Spray poly goes on just like spray paint. How do digital function generators generate precise frequencies? Polyurethane is widely revered as one of the most durable yet easy-to-apply protective wood finishes. After each coat, re-dip the roller in mineral spirits and put it into a zippered plastic bag for the next coat and leave the wet tray to dry. Allow the item to cure for at least 24 hours before you use it. I want the lightest coating possible it should be water proof as well as UV resistant one. How true is this observation concerning battle? Apply a second coat, if necessary, then reheat the fabric once again. As you're finishing each fresh coat during application, check your work with a bright side-light. Avoid inexpensive bristle brushes, as these tend to leave obvious brush strokes. Brush a water-based polyurethane on to your fabric. Repeat until the coat is clean. These fabrics are used in several industries, from medical companies to the manufacture of diapers and active wear. Apply a very thin coat of polyurethane with a fine brush, foam pad, or cloth. Rinse the coat completely. Apply the finish in a clean, well-ventilated area. Both can be applied in ultra-thin coats that result in less buildup in nooks and crannies, provided you don't apply too much. 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