4fl oz / 118ml bottle of 3M 4298 Adhesion Promoter (equivalent to 47 sponge applicators, search ASIN: B01G2AKDYE). For a smaller volume, of 3M 4298, purchase .47fl oz / 14ml refillable marker with reversible tip (search ASIN: B0953S3F5F). To purchase a combo pack of 4fl oz bottle, felt tip applicator and .47fl oz refillable marker search ASIN: B0BLT55S66. 3M 4298 is a liquid primer used to increases the bond strength between acrylic adhesive tapes and most substrates. This would include common plastics used for automotive dash and interior trim applications (TPO, PPO, PP, PC, PC + ABS, etc). Clear light yellow primer is detectable by UV light, dries in approximately 30 seconds. Same ingredients as 3M 06396 except with detectable primer. To purchase a Docking Station see ASIN: B09D4T9MQX. To purchase felt tip applicators search ASIN: B082XDWJ9K. Added reinforced shrink band cap eliminates leakage during shipping. This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.