GRP consists of glass fibres and polyester resins. The former ones, forming the structural part, ensure the product’s mechanical resistance; the latter are chemically durable and combine the various fibres; this allows stress distribution. ProMetall’s gratings and structures are produced with specially patented technologies that are mainly based on the concept of injection moulding (RTM) or pultrusion.
ProMetall gratings are also available with anti-slip surface, in accordance with DIN E 51130 (provisions concerning slip resistance), in the below versions:
ProMetall GRP-plastic gratings are produced in many different sizes, by means of injection moulding technology, to provide a quick solution for various system issues. They are produced in monolithic panels and are simple and fast to install. ProMetall GRP-plastic gratings are mainly required for runways, treads, gutter, and shaft covers, electric cover panels and steps. Our GRP-plastic gratings have a high safety factor and were developed under strict controls, in accordance with DIN 25437-3.
Metal gratings are definitely the best-known gratings. For cost reasons, they are used a lot but – compared with GRP-plastic gratings – there are some negative aspects to be considered.
Disadvantages of metal gratings:
Advantages of GRP-gratings:
Discover the positive qualities of GRP-gratings and find out how to improve your services by replacing metal gratings with GRP-gratings by ProMetall.