PH901X AR Glass Fiber Reinforced Concrete Chopped Strands. Alkali Resistant Glass Fiber Reinforced Concrete PH901X Fiber Glass is the heaviest strands of the of the leading fibers manufacturer Nippon Electric Glass America Inc. PH901X Fiber Strand contains 200 filaments. 18 microns diameter of the filament provides your GFRC with the highest integrity and the most resistance to filamentization during mixing and processing. 19% or higher zirconia content provides excellent fiber alkali resistance and acid resistance. Suitable for spray-premix Perfect for mortar and concrete reinforcement applications; all decorative applications as countertops, fireplace surrounds, casting Manufactured by NEG America Inc., Japan in compliance with ASTM C1666/C 1666M, EN 15422 and under recommendations of PCI and GRCA Available in 13,19 and 25 mm (1/2?, ? and 1?) length. Packaging 1 lb bag or 44 lb bag. All orders placed before 1 p.m. Pacific Standard Time on a business day usually shipped out the same day. Usually we ship 1 lb bag orders via USPS priority mail and 10 or more lbs orders via Fedex Ground/Home delivery.