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It doesn't matter now, if the moisture is too strong, the paint will fall off and lose its luster after too long. The wood will swell and rot.
It is a foam filler, and now you need to remove the fee part and apply latex paint on the putty.
Of course, you need to brush the primer once. The purpose of sealing the bottom is to seal the moisture, grease and other pollutants of the bottom layer and achieve better adhesion to the topcoat oil. >>>More
1. All can be polished, but must be sanded, degreasing wax, in addition, it is necessary to find out the nature of the original paint, nitro can only be brushed on nitro. >>>More
Okay, it's necessary.
It will also be better to apply the primer one more time. However, in this place, if you do carpentry, you usually have two primers and two topcoats. If the family is financially well-off, it will be primed three or even four times. >>>More
Your construction steps are completely wrong, and I feel that the putty should be completely unstable when brushed on the varnish.