Polyurethane (PU) Binder
We are engaged in manufacturing a wide range of Polyurethane Binders. This 100% solid polyurethane resin product is moisture curing binder for onsite application of recycled rubber crumb and EPDM.
PU binders are available in two categories, Aromatic and Aliphatic grade as below
1) Aromatic Binder
Aromatic binders are the most commonly used PU binder because of its economic value and availability in the market. Nevertheless, Aromatic binders tend to yellow upon exposure to sunlight and UV rays, namely the “yellowing effect” which is a common phenomenon. Yellowing effect will cause some colors of EPDM Granules to change momentarily until the yellowing tint wears off. Sunzone also offers Aromatic PU binder added with UV inhibitor for the color granules that are sensitive to the yellowing effect. The added UV stabilizer act as a retarder to delay the yellowing effect taking place, allowing it to change slower to a more uniform shade at an extended period of time.
2) Aliphatic Binders
Aliphatic binder is premium grade, non-yellowing Polyurethane binder. It offers exceptional chemical resistance, good weathering properties and superior adhesion. However, Aliphatic PU binder cost much more than the Aromatic grade.