iSuo Chem® Solbin A resin(VAH-N or VAGH). Vinyl terpolymer VAH-N/VAGH resin is also called Solbin A resin. hydroxyl modified ternary copolymer of vinyl chloride, vinyl acetate & vinyl alcohol. Molecular weight: 27000. It is soluble in correspondingly strong solvent & thinner composition, for example, 50% ketone & 50% aromatic hydrocarbon, producing 20% (solid count) resin solution.