Santoweb® H

Santoweb® H by Lanxess is a treated cellulose fiber product, provides reinforcement for uncured and cured rubber compounds. It also functions as filler. It reduces cut growth rate and enhances product stiffness, modulus in both stress and compression mode of EPDM and IIR compounds. It contains resorcinol-formaldehyde resin, a methylene receptor to maximize bonding of the fibers to the rubber matrix. It provides reinforcement for uncured and cured rubber compounds. It improves strength, reduces die swell and cold flow. It does not cause compound staining. It should be used with a methylene donating chemical for applications in which adhesion of the fiber to the rubber matrix is critical. It can be processed by calendaring and extrusion. It is suitable for low pressure hoses, gaskets and diaphragms. It provides green strength with loadings of 1-4 % by weight, increased flexural stress at levels of 5-15% by weight and very significant fiber reinforcement at 10-20% by weight. Santoweb® H has a shelf life of 2 years.