This is a DYN1017 X-Grip Body Filler. X-Grip finally delivers the "Grip" formula body filler with awesome workability that automotive craftsmen have been waiting for. X-Grip not only delivers insane adhesion to virtually any surface, but it also offers a wicked-fast cure to sand time with no shrinkage. Sands in just 20 minutes after application with killer featheredging results.