I am putting my 75 cat22 in a slip starting may 1st. I have a few questions regarding getting it ready to stay in the water (south/central puget sound)for at least 6 months. has always been on trailer/no bottom paint. 1 - i got the zinc kit from cat direct. two discs with a bolt. how and where are these installed? 2 - any suggestions on how to sand and paint up into the keel trunk? 3 - how far up to i put the bottom paint? i saw another cat22 with paint up to 1" below the stripe. 4 - i heard two ways to paint. clean then sand with 80 grit then clean again then paint. Or clean, primer then sand. paint can says either way. which is best? thanks in advance....brian
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80 Grit ?
Well hold on there, 80 grit sandpaper ?? If you do you will be thru your gelcoat in no time. The whole idea here is not to etch the gelcoat, just to remove any wax, grime or debris that may have attached itself to the bottom parts. If this is a 1975 Catalina then unless she has had a complete makeover and had a re-gelcoat finish or epoxy paint applied to the bottom. The existing finish is probably rough enough for the paint to stick to it just fine. Even with my new 2000 Mark II it's only necessary to have removed the wax to have some of the Best bottom paint stick. Now then for how much to paint? I always paint up to the bottom of the waterline stripe. Simple painters tape applied along the bottom edge of the waterline stripe will keep it neat. Then just peel the tape off after or as it sets up. As for painting up into the trunk area, there are a couple ways of doing it depending on how much time and muscle you have. You could drop the keel down and get at it that way, or you could use a spray rig to get most of it and the very top portion of the keel painted and maybe the very upper underside of the trunk would be the only part missed. So it's up to you and how much time you have to do the job before you need to be in the water. As for the sacrifical anodes, I have seen them attached to the rudder or attached to the keel. Simply take a drill, drill a hole apply some waterproof saline resistant silicone in the hole and bolt them together, one on each side of the keel or rudder. As for primering, I don't feel it's needed, however I'm sure you could find someone out here that would indeed do just that. I use a type of bottom paint that sloughs off so when I see the paint turning light or a bit of white hull beginning to show thru I know it's either time for a touch up or complete job again. If your hull is pretty ragged then primer if not then I wouldn't. Well there you go, Happy Sailing Dave LaPere
Well hold on there, 80 grit sandpaper ?? If you do you will be thru your gelcoat in no time. The whole idea here is not to etch the gelcoat, just to remove any wax, grime or debris that may have attached itself to the bottom parts. If this is a 1975 Catalina then unless she has had a complete makeover and had a re-gelcoat finish or epoxy paint applied to the bottom. The existing finish is probably rough enough for the paint to stick to it just fine. Even with my new 2000 Mark II it's only necessary to have removed the wax to have some of the Best bottom paint stick. Now then for how much to paint? I always paint up to the bottom of the waterline stripe. Simple painters tape applied along the bottom edge of the waterline stripe will keep it neat. Then just peel the tape off after or as it sets up. As for painting up into the trunk area, there are a couple ways of doing it depending on how much time and muscle you have. You could drop the keel down and get at it that way, or you could use a spray rig to get most of it and the very top portion of the keel painted and maybe the very upper underside of the trunk would be the only part missed. So it's up to you and how much time you have to do the job before you need to be in the water. As for the sacrifical anodes, I have seen them attached to the rudder or attached to the keel. Simply take a drill, drill a hole apply some waterproof saline resistant silicone in the hole and bolt them together, one on each side of the keel or rudder. As for primering, I don't feel it's needed, however I'm sure you could find someone out here that would indeed do just that. I use a type of bottom paint that sloughs off so when I see the paint turning light or a bit of white hull beginning to show thru I know it's either time for a touch up or complete job again. If your hull is pretty ragged then primer if not then I wouldn't. Well there you go, Happy Sailing Dave LaPere
thanks
thanks for the response. i tried 80 grit lightly in a small area. 80 grit was recommended by one of the guys at west marine "ya gotta make the paint stick". i agree with you however, even with a very light touch it took off to way too much. i'll probably go with a much finer paper and a cleaner. don't think i'll need a primer. the paint manufacuter recommeds metal primer on the keel. thanks again...brian
thanks for the response. i tried 80 grit lightly in a small area. 80 grit was recommended by one of the guys at west marine "ya gotta make the paint stick". i agree with you however, even with a very light touch it took off to way too much. i'll probably go with a much finer paper and a cleaner. don't think i'll need a primer. the paint manufacuter recommeds metal primer on the keel. thanks again...brian
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