Artificial Grass Specifications And What Do They Mean

If you are planning an artificial grass project, you may need to do some sourcing on the internet and request samples from some artificial grass suppliers, then you will meet some artificial grass glossaries in the specification sheet, or on the label of the samples. These specifications somehow determine the quality (including lifespan and performance…) and the artificial grass cost. Normally you can make the right decision by the recommendation of the supplier and comparison of physical samples by yourself. But if you are hoping to go deeper, you need to understand what do these specifications mean.

Pile height: the height of the pile (the blade/fiber/yarn on top of the artificial grass backing.), usually measured in millimeter (mm).

Dtex: a unit of measurement that indicates the linear mass of yarn in grams, per 10,000 meters. In other words, it relates to the weight of the yarn used to make artificial grass(with a certain density). If other specifications same, higher Dtex means higher face weight(more yarn used in the grass), better durability, denser touch feeling.

For example, 11000 Dtex, means the weight of 10000-meter yarns(yarns from the same stitch) is 11000g.

Note: Dtex is one of the main factors that will affect the face weight of artificial grass. Generally speaking, More face weight=more materials=higher price. We always provide the precise Detex(±5%), but there do have some suppliers exaggerate Dtex on the quotation sheet on the market, and you can not find this if not checking with professional equipment.

Gauge: The distance between two adjacent lines, usually using ‘inch’ as the unit.

The common gauge includes 3/8 inch, 3/4 inch, 5/8 inch, 5/32 inch…

The gauge on the picture below is 3/8 inch. 3/8inch=0.9525cm, so there are 105 lines of grass in 100cm distance (100/0.9525= 105 lines)

Stitch Rate: number of artificial grass stitches per 100cm in the stitch line direction.

In the picture as following, there are 17 stitches in 10cm, so there should be 170 stitches in 100cm.

Density: Number of stitches in one square meter (we did not write the density on the latest version of the label for it can be calculated if gauge and stitch rate are given).

How to calculate density with the data of the gauge and stitch rate?

Take gauge 3/8 inch and stitch rate 170 stitches/100cm as an example:

1) 3/8 inch=0.9525cm, there are 105 lines in 100cm distance (100/0.9525= 105 lines).

2) In the stitch line direction, there are 170 stitches in the 100cm distance(See the below picture – stitch rate).

3) In the size of one square meter (100cm x 100cm), there are 105*170=17850 stitches. We say that the density of this artificial grass is 17850 stitches/m2.

Backing: artificial grass backings are comprised of a primary backing and a secondary backing. Both the primary and secondary backings work together to provide dimensional stability to the entire system.

– The primary backing is comprised of woven polypropylene fabrics that allow the artificial grass fibers to be tufted into the material in rows and facilitate seaming between artificial grass panels.

Currently, all products you ordered applied PP+NET primary backing(A layer of polypropylene(PP) fabric and a layer of the net).

– The secondary backing is often referred to as the ‘coating’ and is applied to the reverse side of the primary backing in order to permanently lock the tufted fibers in place.

SBR Latex coating and Polyurethane(PU) packing are two common coatings for artificial grass(Now on the market most grasses use Latex coating). Polyurethane packing is better but much higher cost. Latex backing is good enough in most cases.

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