One, can plywood be directly coated with putty powder?
No.
Applying putty powder directly onto plywood can easily lead to detachment.
Two. How to repair the cracks in plywood
For narrow cracks, ready-mixed putty paste can be used to fill them. For larger cracks, the damaged area needs to be excavated. The defective component should be milled using a milling knife, and a matching-colored sheet should be cut to create a patch. The patch should be coated with adhesive, pressed firmly to ensure a strong bond, and the excavated area should be cleaned.
Three. How to prevent cracking in plywood
The cracking of plywood is mainly caused by uneven moisture content in the wood, which disrupts its relative stability and leads to cracking.
Therefore, it is important to minimize the contact between the wood and moisture. A simple method is to apply a coat of paint to the wood, which will prevent water from entering the wood.
Additionally, waterproof agents can be used to protect the plywood. Waterproof agents can reduce the moisture absorption of the wood, making them an effective solution.