Heavy duty 190 gsm drainage/geotextile membrane - Typar SF56
Surplus from a new build, approx 25 metres used from the 100m x 4.5m roll. An extremely heavy duty (190g/sqm) good quality thermally bonded nonwoven geotexile, made of 100% polypropylene which is designed to have a combination of a high initial modulus (stiffness), high elongation (typically > 50%) and outstanding uniformity, to give superior performance, in all directions. DuPontTM Typar® SF ensures an effective filtration system by creating a natural soil filter. As water passes from the soil through DuPontTM Typar® SF and into the drain, it initially washes out fine particles. This causes a bridging network of larger particles to be built up adjacent to the DuPontTM Typar® SF forming a natural soil filter. This combination of geotextile and natural soil filter immediately stops piping and gives stable filter conditions over time....long-lasting filtration: no clogging DuPontTM Typar® does not clog: DuPontTM Typar® is pre-compressed and thus soil fines and particles are not retained within its thin structure. The permeability of a soil-geotextile system is dictated by the permeability of the soil itself. DuPontTM Typar® SF is generally more permeable than the soil*, therefore it suits perfectly for filtration.... even under loads Unlike some other geotextiles, DuPont™ Typar® SF retains its permeability under in-use loads. DuPontTM Typar® SF is a nonwoven geotextile which provides superb performance in all directions, mirroring in-use oads. DuPont quality manufacturing and DuPontTM Typar® SF process control ensure excellent product uniformity, thereby guaranteeing consistent performance over the entire geotextile roll. Easy to handle - A roll of DuPontTM Typar® SF can easily be carried by two people. Cutting the material is very simple. Easy to install - It is very easy to unroll DuPontTM Typar® SF. As it is pre-compressed, it does not soak up water, does not become heavy and can easily be installed in muddy conditions.... even in winter conditions Because it doesn’t soak up water, it cannot freeze, and is therefore easy to install in winter conditions. Simplified logistics - As DuPontTM Typar® SF is pre-compressed, it takes up little space, hence low storage space is required and transport is facilitated. Cash on collection please from Norfolk. Read more