Alpha Pro 19mm AR Glass Fibers for GFRC

Alpha Pro Fibers are the best AR glass fibers for GFRC concrete countertops.

Here's how:

• They save you money because they use lower doses to achieve higher performance.
• They make your concrete look better because they are are less visible than other AR glass fibers.
• They make your concrete stronger because the fibers won't shred during mixing.
• They make your job easier because they flow easily during casting.

Here's why:

Alpha Pro Fibers use 14 µm filaments in 200 filament bundles. Conventional AR glass fibers tend to be heavier, thicker high tex strands (135 tex or more) made using 18 µm filaments. This means each kilogram of Alpha Pro Fibers has 65% more fibers than conventional thicker and heavier fibers. They also have higher than normal tensile strength.

This balance of a lower filament diameter, greater number of fibers, and higher than normal tensile strength results in a premix fiber that exhibits higher performance at lower doses. CCI recommends a fiber dose of 2.5% for these fibers, rather than the 3% dose required for conventional fibers. Click here for how to calculate fiber dosage in GFRC mixes.

Another key benefit to lower tex fibers is reduced visibility in direct cast concrete surfaces.

Alpha Pro Fibers are coated with a unique sizing. "Sizing" is a thin, homogeneous coating applied to the surface of fibers during the manufacturing process to protect the filaments during handling. Alpha Pro Fiber's sizing is a unique formulation that ensures excellent strand integrity during mixing - the fibers won't shred. It also gives exceptional flow characteristics during casting - the fibers flow easily and smoothly.

Alpha Pro chopped AR glass fibers are manufactured with a zirconia content in compliance with ASTM C1666/C 1666/M-07 and EN 15422 and under the recommendations of PCI and GRCA.