While you may have known that silicone makes a good sealant, it’s not the best choice for your home sidings because it can’t be painted. The other important reason to choose polyurethane is that it is paintable, whereas 100-percent silicone caulk is not. It’s not designed to contract all the way to its original size. In comparison, traditional painters caulk only expands by 10 percent, which is why it often cracks easily. The reason for using polyurethane is because it expands and contracts at 100 percent its size. You want to use polyurethane caulking, such as OSI’s Quad. However, it is also important to apply it the right way. The process of caulking fills in the gaps and holes left in the wall after old paint removal. Make sure that no dust or chips are left on the surface. Use a scraper to carefully remove the old paint. If you need to change your paint color, you should first properly remove the old or badly peeling paint. Second Step: Remove Old and Chipping Paint For tough mildew stains, use a solution of bleach and water, wipe the mildew areas and rinse off after 20 minutes. You don’t need to scrub off the dirt a power wash should have enough force and pressure to do the job. To remove dirt and dust, first power wash the exterior with water.
When you need to change its paint color or just fix up an old shade, here is the best way to do it: First Step: Eliminate Any Previous Dirt and MildewĬement sidings should be clean and dry before applying new paint. However, re-painting your siding takes extra care and finesse. Many homeowners choose this material for its durable, water-resistant and non-combustible properties. If you’ve chosen fiber cement siding for your home, you’ve made a great choice.
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