How to Treat Plywood for Outdoors
- 1). Fill the 1 quart spray-gun container with linseed oil.
- 2). Spray the plywood liberally, saturating the plywood until it is completely wet. Spray all four edges. Spray any and all surfaces of the plywood that you can. If the plywood is loose, turn it over and spray the bottom. Wait one hour and spray it again. Wait one week.
- 3). Spray the plywood again, liberally soaking it on any and all exposed surfaces.
- 4). Spray the plywood once every six months after that to permanently protect it.
