Surface Mats

Function of Surface Mat

In a FRP laminate, surface mat is present under the top coat (gel coat) which creates a weather resistant layer. Properly impregnated and cured surface mat will protect the inner glass-resin matrix. This will surely enhance life of your composite parts. At the same time, surface mat also reinforces the gel coat layer.

While applying a layer of surface mat, always be generous in using resin. Ideally, glass-to-resin ratio for laminating surface mat should be at least 1:6 to a good 1:10. For instance, to lay a 30 gr/m2 surface mat, use 250 to 300 grams of resin per meter square.

Application with Surface Mat

Most important aspect is to create a barrier. In some aggressive environments where composite parts are constantly exposed / submerged into acidic waters or chemicals, a layer of surface mat is applied on both sides of such parts. One classical example is cooling tower panels.

Variations of Surface Mat

We offer different product to suit different applications like filament winding, hand lay-up, pultrusion, rtm / lrtm, etc. Also, we provide individual solutions in terms of slit width reels / tapes and roll lengths.