Poly Big
POLYSHIELD POLY BIG is an excellent Fire-Retardant double-sided superior reflective insulation composed of two high-performing, high-reflective pure aluminum foils covering 8.00 mm white bubbles (30 mm diameter). In addition, the insulation comes with a Reinforced Net for additional support and stronger performance. The aluminum foils come with 3% emissivity (tested to American Society for Testing and Materials Standards) and 97% reflectivity, for effective reduction of radiant heat.