Sonae Arauco PB Shuttering is a P3 particleboard, coated with a special surface for formwork. It has low formaldehyde emissions (class E1) and improved performance in humid conditions, with a low expansion and swelling index. With regard to its reaction to fire, and in accordance with EN 13986, PB SHUTTERING is classified as D-s2, d0 (Euroclass definition according to EN 13501-1).