HIGH PERFORMANCE WITH DUST REDUCTION
Black particles help dissipate heat across the surface to avoid hot spotting that lead into fade. They also contribute to wear reduction and help to control the overall surface hardness.
Solvent free CNSL liquid binder resins are mainly used in asbestos and non-asbestos rolled linings, heavy duty and railway blocks. Hexamine addition of 8-9 wt% of the resin is recommended for cure. Solvent free resins are a great choice in situations where organic solvents are restricted. Mild heating to 50°C will reduce viscosity somewhat and aid resin wetting of formulation ingredients.
CNSL liquid binder resins containing solvent makes the resin easy to use, but the solvent must be removed after the mixing/rolling process. Hexamine is used to cure these resins and 7-9 wt% of the resin solids content is recommended.
CNSL elastomer modified liquid binder resins are primarily used in flexible asbestos free rolled segments. A single solvent or solvent blend is used to reduce the viscosity for easier mixing. Because of the rubber modification these resins are also highly useful in applications where some softening or reduced rigidity is desired. To cure these types of resins, hexamine should be added at 6-7 wt% of the resin solids content. The elastomer part may be cured with 1.5 wt% sulfur and 2.1 wt% zinc oxide on a resin solids basis.
Cardolite intermediates are an excellent substitute for phenol streams to improve flexibility and water sensitivity.