This calculator provides BMI and the corresponding BMI weight status category. Use this calculator for adults, 20 years old and older. For children and teens, 2 through 19 years old, use the BMI Calculator for Children and Teens.
How to Apply Polyurethane. Polyurethane is a type of synthetic varnish used for finishing and sealing wood. In interior applications such as finishing floors and wood furniture, polyurethane is harder and more resistant to abrasion than its naturally-derived counterparts.
A polyurethane can be a single or two-component coating. In the case of two-component coatings, the first component contains the colored pigments and most of the other ingredients. The resin of the first component is usually either a polyester or an acrylic.