All of Georgia-Pacific’s UltraStock MDF panels are now manufactured using 100% no-added-formaldehyde (NAF) resin. The new formulation offers enhanced indoor air quality and environmental value, Georgia-Pacific says. In addition, UltraStock MR MDF now meets MR50 requirements, ANSI’s highest designation for moisture-resistant MDF. UltraStock MR is ideal for interior settings where periodic exposure to moisture is likely, according to the manufacturer. UltraStock Select, Premium, Lite, Moulding, and Embossing meet MR10 standards. See distributor for pricing.