AUTOBAHNHOF® 2K 4+1 Urethane Primer two components product, high adherence, fast dryable and easy sanding urethane filler. Used with AUTOBAHNHOF® 2K 4+1 Urethane Hardener at ratio of 25 parts in 100 parts (4:1).
 
Ready for sanding in 2-3 hours at 20°C(68 °F), in 30 minutes at 60°C (140°F).
Dries completely in 24 hours with in open air.