Manufacturing, LLC

Supplying the Globe with Quality Equipment


gfrc,grc,gfrc pumps,high shear mixers, gfrc equipment,fireproofing sprayer,fireproofing pump,mortar pump,mortar mixer

AR Fiber Glass and Scrim Materials Mfg. by Nippon Electric Glass                     Back to Raw Materials

We Sell All Styles of AR Glass/ Scrim by the Pound in just about Any Quantity!

Pre Chopped AR Glass Fibers

General Information about different types of Chopped Strand:

Strands designated by H in the product code.

These are high integrity strands that are designed to resist breaking down during mixing and processing so that it stays basically as a bundle of filaments. These products are particularly suitable for Premix and other mortar and concrete reinforcement applications.

Strands designated by S in the product code.

These are water dispersible Strands that are designed to break down into individual filaments when it is added to water or aqueous mixes.

These products are usually confined to low fiber content mixes (< 2% by weight), or high water content mixes where the excess water is removed, such as in vacuum de-watering processes commonly used to manufacture asbestos cement and calcium silicate products.

Number of Filaments per Strand.

Basically determines the number of strands per unit volume for a given weight percent. Generally the more strands per unit volume the higher the flexural strength but mix workability is usually reduced.
The last letter in the product code gives the number of filaments per strand as follows: (Z = 50 Filaments per strand, Y = 100 Filaments per Strand, X = 200 Filaments per Strand)

H530X (most common glass used in GFRC mixes)

High integrity strand, designed for premix applications such as premix casting and premix spraying. Available in 13, 25 and 38 mm lengths (1/2, 1 and 1 1/2 inch). Strand length is given by the first one or two digits in the product code.
Example: 13H530X = 13 mm (1/2 inch) product.


High integrity strand, designed for lower glassfiber content applications, such as stucco and surface bonding. It has half the number of filaments per strand that H530X, so it provides twice the number of strands for same weight content as H530X. This can create workability difficulties at higher fiber contents. However, this feature can maximize strengths in low fiber content composites. The finer strand is less visible at the surface, which is of benefit in stucco applications.
Available in 13mm (1/2 inch) length.

PH901X (most common glass used in GFRC mixes)

The letter P in the product code states that the filament diameter is 18 microns as opposed to all other products which have 13 micron filament diameters. This makes it our heaviest available strand. It has the highest integrity and is most resistant to filamentization during mixing and processing. It is particularly suitable for spray-premix.
Available in 13, 19 and 25 mm (1/2, 3/4, 1 inch) lengths.


Designed for fast dispersion into individual filaments on mixing in aqueous slurries. Particularly suitable for asbestos replacement applications and can be incorporated into face mix slurries to help reduce surface crazing. Strand is wet cut and has
residual moisture.
Available in 6 and 13mm (1/4 and ½ inch) lengths.

13H103 Chopped Strand

This chopped strand is design for use in Fiber Reinforced Concrete (FRC) for plastic shrinkage crack control. It is not intended for general use in GFRC

Typically the dosage rate will be 1 1/2 lbs/cu. yd. of concrete. Mixing of the fibers needs to be done at the job site as excessive mixing time can cause damage to the fibers.

AR Glass Fiber Gun Roving

2500H103/DB - 5000H103/DB

For GFRC spray-up applications. The high integrity strand has excellent combination for stiffness for good lay-down and wet-out but is sufficiently soft to allow easy roll-out into corners and other mold details.

2500H350Y/DB - 5000H350Y/DB

Specialty roving, particularly designed for GFRC spray-up of primarily flat products. It is not usually suitable for spray-up of products with shape and molded features due to its high number of strands.


Designed for chopping into chopped strands that are suitable for premix applications. Especially suitable for direct chopping into mixer. The strands obtained from this roving are too stiff for spray-up applications.

AR Scrim for Adding Addtional Strength to GFRC Applications

 Scrims are oriented continuous fiber fabrics. The continuous fiber is usually yarn or roving. The continuous strands are not inter-woven but are laid over each other at ninety degree orientation and then a binder is applied which holds the fabric structure in place.

 Various types of scrim are possible depending on the spacing between the strands and the number of parallel strands as shown in figure (1) below.


Types of scrim for GFRC that are commercially available:

5X5 denotes
5mm (1/4 inch) spacing between strands.

10X10 denotes
10mm (3/8 inch) spacing between strands.

*Scrims are particularly used in conjunction with chopped strand reinforced mixes. When they are placed in the tensile regions of the product they care significantly increase the flexural strength of the composite.

Back to Raw Materials