Sealing Plywood Edges For Exterior Use

Plywood is tough but it still needs to be sealed especially on the edges to prevent moisture penetration when used outdoors.

Sealing plywood edges for exterior use. You will require the following materials. PVA is usually water soluble so wont actually seal the edges against a leak. Smiths Clear Penetrating Epoxy Sealer was used to seal the edges and faces of the plywood.

For best results apply to both sides and all edges of the plywood. This is where the majority of water damage occurs. Ive also used exterior primer thats formulated thicker to cover over old scraped-off paint.

Sealing the edges of these boards can significantly extend their useful life. One of the best methods to seal plywood edges outside is by applying exterior polyurethane varnish. Cover the surface with masking tape.

Avoid it using on the surface of the plywood. Place a dust sheet or plastic sheeting on the ground below the exterior plywood you want to seal. Ad Check out our wide variety today.

The plywood is getting damp and staying that way and thats whats causing the finish to peel and the plywood edges to split. So alternatively you can seal plywood with a non-toxic silicone sealer. Make sure youre using an exterior-grade plywood B-C grade should work or marine-grade to start with which will be made with water-resistant glue.

This is especially important if you plan on sealing plywood that will be used to build a reptile vivarium. Not actually designed for sealing the edges of ply but does a marvellous job. The Benefits Of Sealing Plywood.