Q: WHAT IS POLYASPARTIC COATING?
A. ORIGINAL POLYASPARTIC CHEMISTRY
Was originally introduced around the early 1990s making it a relatively new class of concrete coating. Polyaspartic is actually an aliphatic polyurea as it is derived from the chemical reaction of aliphatic polyisocyanate component and a polyaspartic ester component, which is a new type of amine/diamine functional coreactant for aliphatic polyisocyanate.
Polyaspartic esters perform well as a reactive diluting agent for high solids polyurethane coatings. As such, polyaspartic esters initially used in conventional solvent-borne two-component polyurethane coatings. Eventually, the advantages of using polyaspartic esters as the main component of the co-reactant for reaction with an aliphatic polyisocyanate in low to zero volatile organic compound (voc) coatings has been realized.
The reaction rate of polyaspartic esters can be manipulated, thus extending the pot-life and controlling the cure rate of aliphatic coatings. This allows formulators to create high solids coatings systems which are user-friendly with longer working times and still maintain a rapid-cure time.
Traditional aliphatic polyurea formulations required high-pressure and temperature plural component spray systems to be applied due to quick initial reaction rates. Aliphatic polyaspartics can be formulated with slower reaction rates to accommodate batch-mixing and application by roller-applied methods.
When coating concrete, polyaspartics can be installed in both clear and pigmented form. Additionally, broadcast media such as quartz, vinyl paint chips can be incorporating, as well as metallic pigments