What is polyurethane?

Polyurethane is a polymer obtained from hydroxyl bases combined with diisocyanates (usually TDI or MDI). Polyurethanes are classified into two groups based on their chemical structure, differentiated by their behaviour in certain temperatures.  This separates them into two types: Thermosetting polyurethanes or thermoplastic polyurethanes (depending on whether they degrade before flowing or flow before degrading, respectively).

The most common thermosetting polyurethanes are foams, widely used as thermal insulators and strong foams.

The most common thermoplastic polyurethanes include those used in elastomers, high-performance adhesives and sealants, shoe soles, paints, textile fibres, sealants, packaging, gaskets, preservatives, automotive components, in the construction industry, furniture and many other applications.

Polyurethane formulation


Two of the main ranges of products manufactured by Tecnopol are made from Polyurethane.



Continuous, elastic and completely waterproof membranes whose properties make them excellent for application on all types of surfaces, whether in new construction or the renovation of large and small projects.


A range of polyurethane foams specially designed for spraying and injection in residential, commercial or industrial applications. The polyurethane spray is one of the most effective thermal insulation systems that exists.