Painted Lines on Artificial Grass
The longevity of painted lines on Artificial Grass (AG) is difficult to quantify as there are a number of variables that effect how the paint adheres to the grass.

AG surfaces retain moisture longer than hard surfaces and subsequently take longer to dry out sufficiently to provide a completely dry surface for the paint to adhere.

New AG surfaces may have a waxy coating following production. It is also now designed to have lower friction to reduce friction burns, this can make it difficult for the paint to fully adhere (Older AG is more worn providing a better key for the paint). Sand dressed AG lines normally wear faster due to the abrasive effects of the sand.

In our experience, 2 Pack Polyurethane will always outlast Water Based Acrylic and can in many cases may last in excess of 12 months.

However any painted line on AG will eventually fade as the paint coating wears off over time.

Artificial Grass Surfaces
There are many different types of synthetic turf construction with a range of properties and advantages and disadvantages.

Variables include the polymer used for the fibre yarn, the cross-sectional area of the individual ribbons of fibre, the method of carpet manufacture, the pile height and pile density.

Two principal designs are; those with a vertical pile of tufted, woven or knitted construction that is supported with a sand filling or rubber crumb (3G) dressing and those with an interlocking pile of needle-punch construction that are also filled or dressed with sand.

The majority of synthetic turf pitches are surfaced with tufted sand filled carpets. Experience has shown this form of carpet to have good durability and performance. Sand-dressed carpets have a shorter, denser pile than the standard filled systems with a reduced quantity of sand fill and are primarily suited for MUGAs where hockey is the primary sport. Needle-punched carpets offer benefits of increased sand stability within the pile and higher drainage characteristics.

Synthetic Grass surfaces often have a shock pad, which is normally a flexible layer between the macadam base and the playing surface. This is used to provide a degree of comfort to players and to create the required playing characteristics for specific sports. The most common components are rubber crumb/shred mixed with a resin binder although there are other types which have been developed to suit particular performance characteristics. The type and thickness of shock pad chosen is dictated by the priority sport.