Backing of Artificial Grass

Backing plays an importance role in artificial grass and synthetic turf system. It affects the strength of the turf and the drainage function.

The majority of the fabrics used as a base for the artificial grass and synthetic turf layer are made of Polyester or Polypropylene. The fabric is partially reinforced by glass fibers in order to improve the form stability when exposed to heat. In some artificial grass systems multiple fabric layers (2, 3 or even 4) are used for further improvement of stiffness. The artificial grass backing helps to avoid formation of wrinkles caused by the stress of sports play. The inserted tufts of pile fibers are held in place (fixed) by the secondary backing. Latex and PUR are the commonly used materials. While Latex needs a specific stabilization process in order to be resistant to water, Polyurethane often has a problem with insufficient adhesion to the seam tape used to join the rolls of turf (problem of 2- component adhesives; improvement is noted with 1-component PUR adhesives).

As previously stated, water permeability is created with all tufted artificial turf, fake grass or faux grass surfaces through the perforation of the backing with 4mm holes which are drilled / burned in a grid pattern with a typical spacing being 10 to 15cm. Panel-like surfaces allow effective drainage through the joint connection (which is – of course – effective if the supporting layer is permeable enough).

Generally speaking, artificial grass made my us have three layers backing: 2PP+Net, which is more durable than most of the artificial grass backing in the market.