One、How to deal with gaps in wood panels
1. Choose putty powder that closely matches the color of the wood panel.
2、Prepare the putty knife, and thoroughly clean any oil, dirt, or dust around the joints, ensuring the joints are clean and dry.
3. Use a scraper to apply the putty powder into the gaps, ensuring it is thoroughly filled. If the gaps are particularly large, it is recommended to apply the putty paste in two separate coats.
4. After the putty powder dries completely, it can be leveled and smoothed by sanding.
Two. What is used to fill the gaps between wooden boards?
1、Joint sealant

A flexible sealant is a suitable choice, as it provides flexibility and prevents cracking.
This sealant exhibits excellent adhesion, low shrinkage, strong color retention, and a flexible, crack-resistant texture, providing a good decorative finish. It is also durable, wear-resistant, and mold-resistant. This sealant perfectly repairs cracks or damage on floor surfaces, and the surface can also be painted, offering excellent waterproofing properties.
2、Ready-mixed putty paste
Ready-mixed putty paste is a decorative and binding material used to create a smooth surface on walls. It is a paste-like coating and is an essential product to be applied before painting. It is applied over a primer or directly onto the object to eliminate surface irregularities.
Can be used to fill gaps with wood filler putty paste, furniture putty paste, wood putty paste, and wood filler putty paste, providing a substrate for further finishing.
3、Sealing agent
Sealant is a material that conforms to the shape of the sealing surface, does not easily flow, and has a certain degree of adhesion. It is a type of adhesive used to fill gaps between surfaces and create a seal. It provides functions such as leak prevention, waterproofing, vibration damping, sound insulation, and thermal insulation.
4、White glue
For narrow cracks in construction materials, white glue can be injected into the cracks using a plastic tube to fill them. To completely fill the cracks, the glue can be injected twice or thrice, and the concentration of the glue should be appropriate during the operation.