Plywood is an inexpensive and versatile material that can be used for a variety of purposes, including as a concrete mold. While plywood is not typically used as a stand-alone mold for concrete, it can be used in conjunction with other materials to create a mold. When using plywood as part of a concrete mold, it is important to select the right type of plywood and to properly prepare the surface before pouring the concrete.
There are two main types of plywood: hardwood and softwood. Hardwood plywood is denser and more durable than softwood, making it a better choice for use as a concrete mold. Softwood plywood is more likely to warp or break when exposed to moisture, so it should only be used if absolutely necessary. The surface of the plywood must also be smooth in order for the concrete to release easily from the mold. Any roughness on the surface of the ply wood will transfer to the finished product.
To prepare Ply wood for use as part of a concrete mold, start by sanding down any rough spots on the surface. Then, apply a coat of sealant or primer to help protect the wood from moisture damage. Once dry, you're ready to start creating your custom concrete molds!