Landscape & Urban Design Issue 38 2019 | Page 30

A GUIDE TO ARTIFICIAL GRASS ADHESIVE SYSTEMS Brian Spencer, Technical Director at Envirostik has over 25 years’ experience advising on the correct use of adhesives when fitting synthetic turf. He is able to pass on some key installation knowledge. In an age when people have less free time, but still wish to enjoy a beautiful landscaped area for relaxation, the requirement for low maintenance is paramount. The rapid increase in the use of artificial grassed areas brings new challenges, not only to the landscaping contractor but also to the general public who are now encouraged to buy products on line and undertake their own installation. Where joints are required to the rolls of carpet then an adhesive system will be required and the choice can appear complex, but are really quite straightforward when selected properly and used correctly. A strong, invisible seam joint is essential to produce a continuous surface that will enhance the appearance of the artificial grassed area. There are basically three adhesives systems in common use for jointing the carpet edges. Two component and single component adhesives also require a jointing tape, usually a geotextile strip, on which to apply the adhesive. Two Component Adhesives Generally, polyurethane polymer based adhesives require pre mixing of the components before application. The cured adhesive provides a very strong bonding medium that, when used correctly, will outlast the life The third system is an adhesive coated of the carpet. Supplied in varied tape that has a heavy coating of self- size containers, this system is often adhesive polymer. The choice of fixing the first choice for landscapers and will often depend on the size of the professional installers, and is also area and the expected foot traffic. chosen for bonding carpets direct to other substrates, for example on balconies, decking or roof top gardens. 30 Landscape & Urban Design Issue 38 2019