Sanding sealer is a specific material developed for the lacquer industry
I haven’t done much finishing with lacquer, just the spray bottle that has worked ok without a sealer. I will try this next time I use lacquer to see if it makes any difference for me. I guess like it says in the article it’s more up to what wood you use and how spongy it’s.
Briwax Shellac Sanding Sealer is a high quality sealer produced using natural and traditional materials which have been used since the middle of the 19th century. It is a fine quality natural sealer blended from bleached waxy grade shellac and metallic soaps.
Briwax Sanding Sealer provides a good base which gives a high build and a more resilient finish to French polish and wax. Briwax Sanding Sealer is excellent for filling the pores of whatever you apply it to. It is excellent as a base for French polishing or waxing untreated wood.
Briwax Sanding Sealer is the ideal sealer for use under Briwax Original Wax Polish to produce a higher shine which does not sink away. It also allows bare wood to be waxed with the darker colours and will avoid ‘tide’ marks which can often appear when over-lapping when waxing.
o Shake well before use
o Stain should be applied first and allowed to dry thoroughly
o Sand wood as normal and ensure all dust is removed
o Apply Briwax Shellac Sanding Sealer by brush or cloth
o Allow to dry for 30 min. and sand lightly with 0000 steel wool
o Apply natural finish or wax as directed.
o Coverage : 10 sq/m per litre
Here’s a brand of sanding sealer available in the USA known as Zinsser Bulls Eye Seal Coat. I’ve included pictures so that you can find the correct version of this product that is dewaxed. Only the Seal Coat is dewaxed which is what most woodworkers really want because is dries completely. Many people buy the wrong type and get bad results. I hope this helps.