WEBTECH > Paper Products > Polyiso GRF

WEBTECH® GRF (Glass Reinforced Facer)

Atlas WEBTECH® Glass Reinforced Felt (GRF) is constructed of 100 percent recycled post-consumer and post-industrial fiber. GRF is widely used as facers for polyiso foam board insulation under waterproofing membranes on commercial roofs.

GRF products are chemically modified and bonded, which improves the final product performance of the resultant mat facer.

GRF is offered in a variety of basis weight ranges from 20 - 40 lbs. and color options include Tan and Black.

Typical WEBTECH® Paper Physical Properties

Property Test Method Units
(English)		 Range
(Typical)		 Units
(Metric)		 Range
(Typical)
Dry Weight TAPPI T 410 lbs/480 ft² 17-55 GSM 171-562
Dry Weight TAPPI T 410 lbs/1000 ft² 35-115 GSM 171-562
Caliper TAPPI T 441 mil 15-45 microns 381-1,143
Moisture TAPPI T 441 % 3.0-7.0 % 3.0-7.0

Typical WEBTECH® GRF Roll Properties

Property Units
(English)		 Range
(Typical)		 Units
(Metric)		 Range
(Typical)
Roll Diameter in. 40-83 mm 1,016-2,108
Roll Weight lbs 2,250-5,000 kg 1,021-2,268
Core Diameter I.D./in. 3 or 4 I.D./mm 76 or 102