Painting and Decorating Concourse
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Probably the most important step in achieving a smooth, professional finish is the final rub out. It is impossible to get a dust -free, absolutely smooth finish without buffing under most field applied conditions. Can you get a "good enough" finish without a final rub out? Yes, if you've done a good job sanding between each coat prior to the final finish
coat. Yes, If you've vacuumed and tack ragged well before the final finish and if you are working in a somewhat controlled environment where dust disturbance can be keep to a minimum. Yes, if you've kept your brush, bucket and spray gun clean, as well as the filter on your HVLP, so that there is no transferring of debris to the surface.
If you cannot do all the above or if you are simply wanting the very best of finishes you will need to do a final rub out.
Shellac / Varnish Finishing System
The wood finishing system I like to use is the shellac / varnish system. The shellac / varnish system works well for brushing or HVLP finishing. Many professional painters prefer lacquer for spray finishing because of the fast dry and good spray properties of lacquer. The downside to lacquer is of course the odor and the inability to brush apply it. Brush application is important in a new construction situation where there may be "touch up" or where a sprayer will kick up dust. Spray application of lacquer is most of the time impossible in the repaint scenario of a occupied home. Shellac on the other hand sprays and brushes well and the odor is far less objectionable. I use Quick 15 (Zinsser) as the varnish component making the whole system quick drying.
Shellac as a Sealer
Once your staining is dry (see the product label - usually overnight, but some stains can be finished after a few hours), you can begin the finishing. To avoiding sanding through the finish and accidentally removing stain, I don't do any sanding until I have two coats of shellac applied.
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Faux Painting Tips
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The Hand Rubbed Satin Finish - part 1
(for interior architectural wood finishing)
