Acoustic Guitar Construction

I see that shellac is often used during the sanding processes to prevent color contamination of light woods. For example, around the rosette and around the binding edges on a rosewood rim. Can other products such as minwax, laquers, CAB clear (airplane dope) etc. be used successfully for the same purpose or is there a specific reason such as compatability that these other products shouldn't be used. After all, the protection shellac is going to be sanded off eventually.

My one and only recommendation for a sealer Behlens vinyl sealer in a spray can. Brushing on the sealer can drag the resins etc. on to the light color woods. Mohawk is the same as Behlens. Shellac adds color to the wood and I personally don't like to deal with that issue.

Ken, what is your opinion of using a thin wash-coat of your finish as a sealer?

I certainly have done that before -- but the fact is over the years I come to rely on the convenience of rattle cans. Plus -- and I don't know this for sure, I believe the vinyl formulation is helpful in trapping the oils and resins.