Specifications High-concerned chemical:None Type:Pen Chassis Code Production Years Models BNA1 2021 - Present For BYD Dolphin Standard, BYD Dolphin Long Range, BYD Dolphin EV How to use paint repair pen: Step 1: Shake the bottle for more than 10 seconds before use to ensure that the paint is fully mixed. Step 2: Before applying, wipe the repaired surface and clean it with scratch repair paste (to be purchased separately), turn the pen cap counterclockwise, and apply the brush with appropriate amount of paint on the repaired surface. Step 3: If the repair site is not completely covered, you need to wait for the first coat of paint to dry (about 3 hours), apply the second coat of paint again until the defect is completely covered, if you buy a transparent gloss paint pen, wait until the previous smear is completely dry before use. (Make sure the paint is dry before reapplying) Apply this product to the small paint damage, you can repair, cover up the wound. Easy to use, just compare the body, choose the right paint pen. The brush coating method of this product can only repair small scars, especially metal paint. Due to the limitations of the brush coating method, the metal particles in the paint cannot be evenly dispersed, and there may be a certain color difference and the surface is not smooth. Capacity :12 ml