New keels:
Wash the surface with cleaner and rinse with water. Remove oils, grease, salt, etc. with White Spirit. Sand where necessary. Rinse with water and allow the surface to dry. Prime with 1-2 coats of the appropriate primer, UNI PRIMER (polyester), POLACRYL 301 or MARINE MINIUM (wooden surfaces), X-RUST or MARINE MINIUM (metal surfaces). For better adhesion of TROPIKAL 850, it is recommended to apply 1-2 coats of UNI PRIMER over any other primer.
Maintenance – already painted keels:
Wash the surface with water. After it dries, remove old and loose paint. If the old antifouling is not compatible with TROPIKAL 850, sand and prime with 1-2 coats of UNI PRIMER. In any case, apply two coats of TROPIKAL 850.