SY168 Automotive Sheet Metal Weld Seam Sealant Description SY168 is formulated for sealing automotive sheet metal weld seams. Its resistance to aging and cracking, combined with a finish that can be sanded and painted, makes it a practical choice for body seam repair. Product Feature 1. Targeted Application – Suitable for automotive sheet metal seams. 2.Crack Resistance – Formulated to resist cracking after curing. 3. Aging Resistance – Designed to resist deterioration from