Differences between pure polyurea, polyurethane and hybrids

  In this infographic   you can clearly see that these products differ from the viewpoint of molecular structure.

Poliureas / Híbridos / Poliuretanos

The pure polyurea membrane is the result of binding of diisocyanates and amines in a reaction, resulting in urea linkage. When there are also links polyol is obtained membrane "hybrid". If only links are the result of the polyol is a polyurethane reaction.