Wash thoroughly with mild soap and water. Give copious amounts of water or preferably milk and seek medical attention. Remove to fresh air. Seek medical attention if symptoms persist. Use extinguishing media appropriate to the surrounding fire.
Boron nitride is slippery and is a slip hazard on walkways.
Practice good housekeeping. Glasses, gloves and long sleeve clothing. Hazardous polymerization will not occur. For available information. Non-contaminated paint may be returned to the manufacturer for proper disposal.