I found a large natural bristle brush worked well.
Shellac pine floor.
This knowledge is equal parts gross and fascinating to me.
The resin is scraped from trees and then diluted or processed in denatured alcohol when used for flooring purposes.
Unlike synthetic urethanes shellac is a natural resin that is derived from the lac beetle and diluted with.
Thinner cuts of shellac leave less brush marks.
Shellac is made from the excretions of the lac bug in india and is picked by hand.
Without shellac pine s pitch can bleed into oil based finishes leaving fissures or shiny spots that remain tacky especially around knots.
It comes from the resin secreted by a lac bug found in india and thailand.
I believe it was a badger hair brush.
Our grandpas and dads were putting this orange honey gold finish on their unfinished knotty pine back in the 1950 and 1960s and the product is still available today as bulls eye shellac by zinsser which is a rust oleum company.
It dries very fast so 2 3 coats can be applied in one day and is ready ot walk on in 2 3 hours.
As far as i know amber shellac has been and always will be the classic retro finish for knotty pine.
Polyurethane and epoxy products gel stains oil based or latex paints and clear topcoats such as varnish or shellac are the best finishing products for pine wood.
For you purposes at least 5 6 coats of shellac can be brushed or rolled on to a well sanded pine floor.
Shellac is the best floor finish for an old house shellac link i use this on all my floors http amzn to 2emnp3u.
This article has outlined step by step finishing instructions for various pine wood projects including outdoor furniture floors and wall panels.
Seal the surface with two coats of 2 lb cut dewaxed shellac.
However shellac is about as natural as it gets for a wood flooring finish.