RTM light is a closed mold system. We work with a heated solid lower mold (gfk) and a very thin gfk upper mold.
The closing of the mold and the injection are vacuum assisted.
After applying the gelcoat we insert the fibers and close the mold.
The resin we inject using an injection pump ore sucks up the resin using vacuum.
Filling of the mold by vacuum technology.
Closing the mold system.
Fiber reinforcement is placed before closing the mold.
All types of reinforcements are possible.
Inserts can be integrated.
Good mechanical properties, depending of the fiber reinforcements type used we can go up until 35%.
Advantages of this technique
In the case of RTM light method the upper mold is very thin and flexible, in the case of infusion technique the upper mold is replaced by foil;
Sandwich-construction is possible;
More parts per time unit, up to 16 parts per day/shift depending of using gelcoat or not; cooling jig is necessary;
Thickness accuracy up to +/-1mm;
The thickness of the part is defined by the quantity and type of fiber layers used;
This technique is perfect for the production of big parts, for example boat hulls.