The raw resin material is mixed with various catalysts & additives including the blowing agent and placed between two layers of facing elements. The insulation products are manufactured in accordance with I.S. EN 13166:2012+A2:2016 Thermal insulation products for buildings. Factory made phenolic foam (PF) products. Specification. These insulation products are used in cavity walls, steel and timber-frame walls, soffit and floors insulation applications.