Elastomeric roof coatings and mastics formulated with Kraton™ G SEBS polymers combine long-lasting protection against water penetration and ponding with reduced total project costs. This next-generation, solvent-based coating formulations are low-viscosity, low-VOC systems and are easy to spray or trowel onto roof surfaces, offering excellent adhesion to a wide range of roofing substrates. Kraton G SEBS-based coatings are highly elastic and durable, minimizing maintenance. Its excellent dirt-pickup resistance help maintain an aesthetically attractive, reflective and radiative surface.
DIRT PICK UP RESISTANCE
Coatings made with Kraton polymers resist dirt pick up to improve long-term durability and reflectance while delivering excellent water resistance and extremely low porosity. Water and stain resistance produces coating surfaces with better color retention. Hydrogenated polymers, such as Kraton™ G1643, also feature excellent UV resistance and good resistance to weathering, yellowing and staining for extended durability and service life.
Testing completed on Kraton G 1643-based coatings placed in iron oxide slurry for 500 hours demonstrated improved performance compared with typical acrylic formulations.
Coatings made with Kraton SEBS polymers exhibit excellent radiative properties. Testing showed best-in-class performance initial reflectance and emittance. Samples prepared with the Kraton G1643 starting point formulation exhibited:
- Reflectance: 0.89 ASTMC1549
- Emittance: 0.88 ASTMC1371