Meets the requirements of ASTM D 6162, Type III, Grade S
DynaMax FR Plus Smooth is used as a premium fiber glass/ polyester-reinforced base sheet in a variety of multi-ply roofing systems.
High-Quality SBS Rubber and Asphalt Blend: Lends elasticity and flexibility to the sheet. The elongation and recovery properties allow the product to easily accommodate the continual expansion and contraction experienced on all roofs. The FR blend contains additional fire-retardant additives.
Fiber Glass/Polyester Reinforcement Mat: Combines the excellent tensile strength, toughness and puncture resistance of a polyester mat with the dimensional stability and lay-flat characteristics of fiber glass.
Surfacing: Fine mineral parting agent on both sides of the sheet.