I just finished a small table with marquetry images on the base and top. The background veneer is walnut burl, which is quite porous. I ended up using Deft brushing lacquer and used ten coats before I was able to fill in the porosity and build a finish which could be leveled. The end result was fine, but the time required is excessive.
My question is this: Is there a grain filler which would fill in this porosity without an obvious color that would detract from the marquetry? Any guidance would be appreciated.
Thanks and best regards, Tom Abbott