| PVC for paste application ® Vinnolit E 70 LF is a fine-particle, paste- making copolymer of vinyl chloride and 5 % vinyl acetate yielding low viscosity plastisols with an excellent storage stability (see diagram). Due to its vinyl acetate content, Vinnolit E 70 LF can be easily processed at lower gelling temperatures. Processing and Application: Vinnolit E 70 LF may be converted into pastes by the standard methods, by dissolver or low- speed mixer. However, undue heating of the paste during mixing should be avoided since the vinyl acetate content may cause a rise in viscosity. Pastes based on Vinnolit E 70 LF can be applied by all the usual procedures. Vinnolit E 70 LF is a low temperature gelling, low-viscosity paste grade, recommended for coating heat-sensitive base fabrics, laminating pastes, carpet backings as well as automotive underbody and seam sealants. These applications also benefit from a high filler-loading capability as well as good adhesion to textile base fabrics and automotive metal surfaces. To lower paste viscosity and increase shelf life, Vinnolit E 70 LF may be blended with homopolymer extender resins such as Vinnolit EXT / Vinnolit C 65 V. Remarkable properties are: significant lower gelling temperatures good adhesion at textiles and automotive metal sheets better mechanical properties better abrasion resistance in UBC-mastics excellent storage stability of plastisols&& |
