![]() ![]() Gorilla tape and Scotch Heavy-Duty Exterior Mounting Tape are both strong adhesives that can be used for bonding plywood surfaces. Too much moisture could cause the wood fibers within the plywood sheeting to expand, causing gaps or weak spots in the drywall tape.Ĭonversely, too little moisture may result in the drywall sagging or becoming unattached from its original position on the wood sheeting. Expansion and Shrinking:ĭrywall tape on plywood may experience problems related to expansion and shrinking due to changes in temperature and humidity levels over time. Topics of Discussion: Is it necessary to remove mold before sealing drywall? 3. This moisture creates a perfect breeding ground for mold and mildew spores which can cause all sorts of damage over time. ![]() Plywood is naturally porous, so when combined with drywall tape, it also lets in moisture. Mold and Mildew Issue:Īnother disadvantage of using drywall tape on plywood is that it can lead to mold and mildew growth due to the moist environment created between the two materials. This process can take a lot of time and patience, and working with larger pieces of plywood can make it even more difficult since there is more surface area to cover. The difficulty lies in that the tape has to be carefully applied and pressed down firmly to ensure everything is properly secured and there are no gaps or breaks where the tape does not adhere completely. Difficulty in Installation:ĭrywall tape on plywood can be difficult to install, especially for first-time DIYers or those with limited experience. Disadvantages of Using Drywall Tape on Plywood 1. Doing this can give it an aesthetically pleasing finish. Once you’ve let your joint compound dry (which could take up to 48 hours), you will want to sand lightly if needed before priming and painting your plywood joints for that extra final touch. You may also apply additional layers, such as primer or paint, if desired. Then wet out your piece with epoxy resin and carefully position it into place upon your plywood joints, making sure that all edges are secured properly.Īllow your drywall tape at least 24 hours (or longer if necessary) to cure before continuing on to your next coat. Start by measuring and cutting your piece of tape to match up with the edges of your joint construction project. Step 2: Applying the Fiberglass Mesh TapeĪfter the epoxy has dried properly, you are now ready to apply the fiberglass mesh tape. Can You Use Fiberglass Mesh Drywall Tape on Plywood Directly? These tapes are much thinner than paper varieties, so they do not provide enough coverage over larger gap widths that may be present between sheets of plywood or over thicker sections of the wood grain. ![]() It does not have adhesive properties, so it will not stick to surfaces like wood, making it incompatible with direct application onto plywood surfaces. Metal drywall tape acts as a reinforcing joint compound for seams between pieces of drywall. Why Can’t You Use Metal Drywall Tape on Plywood Directly? This paper tape requires a smooth texture to adhere effectively exposed knots or grains on the plywood could cause irregularities that prevent the tape from laying flat on the surface. It is also highly absorbent of water and paint, which can interfere with adhesion when applied directly onto plywood. Paper drywall tape is designed to expand and contract with temperature changes. Why Can’t You Use Paper Drywall Tape on Plywood Directly? Let’s explore why you can’t use drywall tape on plywood directly for two popular varieties: paper and metal. You can use drywall tape in a variety of construction and home improvement projects, but it should not be used directly on plywood surfaces.
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