These finishes have been formulated using low formaldehyde reactant resins. Once catalyzed, these fast-drying, non-yellowing varnishes offer protection against moisture and household chemicals. The formula builds to a beautiful and exceptionally durable film that fully cures within 2-3 days after the final coat. They require the addition of 1A.622B catalyst (see TDS for details). These varnishes are recommended as self-sealing finishes over properly prepared interior wood surfaces.