3M Adhesion Promoter 4298 is a liquid primer sponge packet used for most low surface energy plastics. This would include common low surface energy plastics used for automotive dash and interior trim applications (TPO, PPO, PP, PC, PC + ABS, etc). Sponge Applicator Packet is 2.5cc per Packet (3 pack). Detectable by UV light. Also available in larger size .47fl oz/14cc (equivalent to 6 sponge packets) marker/pen with valve action reversible applicator tip, search ASIN: B0953S3F5F. Also available in 4fl oz/118cc bottle with applicator tip (equivalent to 47 sponge packets), search ASIN: B082VMFCPT. WARNING: 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.