Part Number: 39681. Q: Is 39681 ready to spray or does it need to be reduced?. Manufacturer: SEM. SEM manufactures automotive coatings and refinishing products for professional collision repair. VOC Information (gallon and quart): Regulatory 5.33 to 5.40 lb per gal (639 to 648 g per l); Actual 1.9 to 2.2 lb per gal (228 to 266 g per l).
