Under brand name MOWITAL™, Kuraray produces polyvinyl butyral resins whose properties are characterized by presence of butyral-, hydroxyl-, and acetyl-groups. With excellent adhesive and film-forming properties, strong binding power and outstanding optical transparency, polyvinyl butyrals are utmost versatile thermoplastics. Today, main application areas are inter-layers for safety glass, paints, lacquers, and varnishes (e.g. primers for metals and anti-corrosion paints), printing inks, temporary binders, and adhesives.
With these characteristics, MOWITAL™ has a diverse range of uses. It is valued for its use in high-quality ink, as a primer/binder for paints for coating metals to prevent rust, and as an indispensable binder in the advanced fine ceramics field.
Gradually add the resin while agitating the solvent. It will dissolve at room temperature, but will do so quicker at a higher temperature. However, if the temperature is raised immediately after the resin is added, there is a risk that the resin will become coalesce, so please increase the heat after the resin has sufficiently expanded, or turn the heat up slowly. If you are using a combined solvent, add a soluble solvent such as alcohol after allowing the solvent that will not independently dissolve the butyral resin (aromatics, esters, chlorinated hydrocarbons, ketones) to expand properly on its own. There is no issue with adding and dissolving the resin into materials with a low polymerization rate that are quick to dissolve after preparing the combined solvent in advance.