Just found your website & am interested in the NBS paint additive. I can’t find a price list. Also, the info says it should be reapplied every one to two years. I don’t paint my house that often, can I reapply it over the paint?
On this site, the NBS product page has the pricing listed just below the “documentation” section. And here is a direct link to it in our shopping cart:
As for it’s frequency of use; you may reapply it as a spray as often as you’d like. No doubt using it this way won’t yield the same results (it won’t last as long when used as a spray compared to a stain or paint additive) but it can be used this way for sure.