Polyurethanes have been more present in recent years in the industrial sector and replace increasingly rubber and plastics, thanks theirs excellent chemical and mechanical properties.

Most polyurethanes are produced by the reaction of an alcohol or an amine with an isocyanate. The system obtained consists of flexible segments and rigid segments and includes free isocyanates NCO-R-OCN which determine according to their contents the rate of toxicity of prepolymers. To solve this problem, we find on the market prepolymers called "free ISO" obtained by eliminating by sublimation free isocyanates resulting from the synthesis.

Mérylithe has developed another process allowing it to synthesize its own FREE ISO prepolymers , polyurethanes and Polyureas at very low levels of free isocyanate. Compared to FREE ISO prepolymers on the market, our prepolymers have characteristics at least equal even higher: elongation properties up to 2000%, excellent dynamic resistance, long pot life, low viscosity even for rates of low NCO ...

The main part in manufacture of the systems lies not only in the precision of proportioning but also in the control of each component entering a formulation. We have contacted in this regard our various suppliers of raw materials so that our products are registered in accordance with REACH program.
And in a preoccupation with quality, production proceeds each receipt of raw materials to an analysis to ensure that the product is delivered corresponds to our requirements.

Our workshop of production which carries out the formulations synthesis has several equipment and machines which allow it to adapt to the request and the quantities wished by the customer. We have indeed batchs of 1,2 Tons and small engines.

Our prepolymers are then packaged in drums of 200 kg.( Other packages are available on request ). For each delivery Prepolymer we provide a certificate of analysis be in agreement with our quality system.