NZD ISO FLUSH is an ISO neutralizer and cleaner, effective in flushing and immersion cleaning of excess liquid isocyanate from spray foam and processing equipment. It is designed to flush isocyanate feed tanks, hoses, or equipment that contains liquid or some hardened isocyanate residues. Non-gelling, non-flammable, non-hazardous, non-HAP’s. ONE CLEANER, ONE SOLUTION.