Since the final mixture should be 3/4 poly and 1/4 solvent, you’ll need to add eight cups of solvent to the mixing container. ![]() ![]() You can use mineral spirits, paint thinner, or turpentine to thin oil based polyurethane. Now it’s time to add the solvent you chose to the oil-based polyurethane you just poured out. Note: Should your project require a lot of polyurethane, I recommend using a large plastic container over a large glass jar, solely because a larger glass jar is likely to become a hindrance when you’re mixing or applying the polyurethane. Use a measuring cup to ensure precise measurements. Since there are 32 cups in a quart, you should pour 24 cups (3/4 of the can) into your container. Let’s say, for example, you’re applying many thin coats to a tabletop, door, or another large wooden surface and you have a quart of polyurethane to work with. So if it’s a large surface, you’ll need to pour out a decent amount a smaller surface won’t require a ton of poly. How much polyurethane you pour out largely depends on the size of the surface you’ll be applying poly to. But if you do use alcohol, make sure you thoroughly rinse and dry the container to ensure there’s no residue when you go to mix leftover alcohol can negatively affect the mix in a variety of ways. Going over the container with some rubbing alcohol won’t hurt. If you can’t get something brand new, choose a receptacle that you’ve used for mixing before-just make sure you clean it off with warm soapy water first.Ĭleaning the receptacle is imperative, as doing so removes dust, caked-on dirt, dried paint particles, and other elements that can cause one of several polyurethane mistakes. But even if you use something that’s fresh out of the store, you’ll need to give it a good rinse before using it as the receptacle for your mixture. I recommend using a brand new glass jar or container. You should use a clean glass jar or a clear plastic container so you can watch the polyurethane transform in real time. mineral spirits (paint thinner), lacquer, or naphtha How to Thin Polyurethane – Oil Based Materials Needed In short, provided you don’t over-thin your poly, thinning it out will make application easier and ensure it looks uniform, smooth, and visually appealing once fully cured. And if it can’t fill cracks and crevices well, it’s not going to be a good sealer-which it is if applied properly.Īdditionally, since there are a few solvents you can use with oil-based polyurethane, like mineral spirits, it’s not like thinning oil-based poly is challenging because of hard-to-get materials.Īnd when it comes to diluting water-based polyurethane, all you need is water-what’s more affordable than that? Plus, polyurethane doesn’t fill cracks and crevices well when it’s thick. When you’re done spreading thick poly, some parts of the surface may have too much poly while other parts have too little. When polyurethane is too thick, it’s hard to spread out evenly. The main reason why polyurethane is thinned is because doing so makes it easier to apply, whether you’re brushing, wiping, or spraying it – and it helps reduce air bubbles and other problems during the application process. Why Should You Thin Polyurethane?īefore I show you how to thin polyurethane, you need to understand the importance of it. Make sure no more than 2% of the mixture is additional solvent. ![]() To thin water-based polyurethane, use water or denatured alcohol. The mix should be three parts poly, one part solvent. To thin oil-based polyurethane, you’ll need to apply mineral spirits, naphtha, or lacquer thinner to it. Best Double-Sided Tapes for Woodworking.Best Deck Stains for Pressure Treated Wood.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |