Durability
Its durability is unparalleled and its tenacious adhesion characteristics make ideal for corrosion control and irreplaceable to a broad base of applications.
Polyurethane is an organic polymer, and is formed in a rapid exothermic reaction when an isocyanate comes in contact with a polyol leaving a coating that sets rapidly and emits no VOC's during the coating process.
Polyurethane conforms to the surface it is sprayed on and can be built up to a coating as thick as needed. It can be applied from as thin as 30 mil, to as thick as 2 inches. The coating is sprayed uniformly and will not experience "shear loss" or thinning at corners.Because of the rapid exothermic reaction it can be applied in temperatures as low as -400 degrees Celsius, where epoxy coatings will not cure.
Ultra fast cure timePolyurethane 100% solids are applied using a special gun that combines the two parts at 1800 psi. It is comprised of Part A, which is Isocyonate and Part B a Polyol mixture. A tint is usually added to the Part B to give the desired color. After being mixed in the gun at 1800 psi, a rapid exothermic reaction occurs and that polyurethane sets up or becomes a solid in as little as 3 seconds to 30 seconds depending on the formulation.
It can be sprayed with a gloss finish; however, most applications are textured or stippled because of the rapid set times.
VersatilityBecause of the varieties of polyols and isocyanates, polyurethane can be formulated to benefit from various properties. Some polyurethanes are harder and more abrasion resistant while some are softer and more elastic in nature.
Generally, softer coatings that are more elastic have better color retention over time, but loose some adhesion capabilities. Harder, more abrasive resistant coatings have tenacious adhesion properties, great corrosion, and chemical resistance but tend to discolor over time.