The durability and lasting beauty of the finishes on our American hardwood furniture comes from using the best preparation methods and finishing materials to provide lasting, beautiful results that resist many typical household spills and living conditions.
OCS Finishes producer Woodright (one of several companies producing OCS finishes for the Amish furniture makers in the USA) offers some helpful information:
When you receive your furniture the finish is 80% cured. This is similar to cement, it is hard, protective, and ready to use right away, however, it takes and additional 3—4 weeks for the final natural hardening of the surface. For the first 3—4 weeks in your home avoid heat and moisture to the surface.