Don Stephan wrote on Oct 26
th, 2018 at 7:50am:
My confusion was a result of the sanding sealer being referred to as "cellulose sanding sealer" rather than "nitrocellulose sanding sealer."
My apologies for the posted question.
It's always good to clarify IMO, this type of thing happens quite a lot when it comes to finishing products.
Back to the OP's question, I rarely use any type of sealer for the following reasons.
1. It's not required for the subsequent finish. If the finish will cover and adhere properly it's not necessary.
2. Color,
Depending on the sealer, it can impart a yellowing or amber tone to the finish, if not immediately, over time.
3. It doesn't benefit
the finishes I use, If it doesn't help the look or performance of the final finish, it's an unnecessary step. I don't stain, color or dye my wood often so even absorption of the finish isn't necessary.
4. I prefer to stick with one product as much as possible. There are many combinations of what can and can't be coated over what, I prefer to avoid the situation as much as possible.
I do use sealer under latex paint. Sealing the wood prior to coating with water-based products provides a better surface and eliminates any grain raising issues.