LITEX™ SkyShield 4685 is an aqueous dispersion of a carboxylated formaldehyde-free self-crosslinking butadiene styrene copolymer for PES-based roofing felts. It features an excellent heat resistance, an outstanding mechanical strength and eliminates the need of formaldehyde-releasing resins. It provides very good adhesion to bitumen.
LITEX™ SkyShield 4685 enables a high mechanical strength, lowest shrink in machine- and cross-direction at elevated temperatures and allows the addition of starch as a co-binder.

Properties: 
Solid Content: 50.0% (ISO 3251)
pH Value: 6.5 (ISO 976)
Viscosity: < 500 mPa.s (ISO 1652)
Glass Transition Temperature: 37°C (DIN 53765)
Anionic dispersion