Sandblasting galv anchor

[whaler23]

My Danforth is painted white and of course looks awful. A friend is planning on sandblasting it in a day or two. I don't want to repaint. What do I need to do, re-dip it or can I just use it freshly sandblasted?

 

[chris piazza]

I just had both mine done. I took then to a local motorcycle shop who sandblasted them and than powder coated them white. I anchor out a lot and they where in poor shape, I will have to wait to see how the powder coating works out.

Chris
Superior Nights 53C

 

[stormchaser]

I'd bet the sand blasting will take off the galvanizing and ti will need to be redipped or repainted.

 

[Brian Degulis]

If you just sand blast it will rust overnight. You have to do something after blasting. The best thing would be to get it galvanized if there is someone that does it in your area. Next would be powder coat but I don't think that's going to last and might not be worth the expense. It's definetly much better than paint but still may not hold up. You could do one of the zinc rich cold galvanising coatings. It won't last any longer than paint but it is easy to re do as you can just put more on when it needs it.

Brian

 

[shaurette]

The galvanizing is tougher than any paint you will apply. If the galv has broken free and is rusting underneath I would think you're in for constant recoating unless you go to bare steel and regalvanize. If, however, your paint is just let go from a sound galvanized finish a very light sand blast or perhaps just a good wire brush then repaint until you do it again next year.

 

[stormchaser]

Next would be powder coat but I don't think that's going to last and might not be worth the expense. It's definetly much better than paint but still may not hold up.

Brian

Mine is powder coated white and looks like new many years later.

 

[SKYCHENEY]

If you are going to actually use the anchor, it needs to be galvanized. Anything else will wear off and chip with use and it will start showing rust in no time. Been there, done that.

 

[whaler23]

Update, buddy found a metal shop in Waynesboro, PA that will hot dip it or as the shop owner suggested, "let me chrome it". I think I'll stick with Galvanizing... Using the anchor at least twice monthly will more than likely wreak havoc with chrome in about 10 seconds...

 

[aquacraig@shaw.ca]

About 500 years ago I worked as a laborer at Ohio Brass. They made all the insulators for high voltage lines, which included a ton of galvanized insulators on ceramic. I used to run the galvanizer on night shift and I think (remember 500 years) that we attached positive to one end, neg to the other and dipped in zinc. The longer we dipped, the thicker the galvanizing. Hence.. there is a difference in the quality of end product. Discuss this with your shop but definetely recommend galvanized over paint or powder.

Craig

 

[67hat34c]

We redipped ours. Did not clean it first as the shop did it.

 

[Fanfare]

Make sure you rod out the hollow crossbar on the bottom of the anchor and rinse it out well. A lot of sand and mud gets forced in there and holds salt and moisture. You want this out before galvanizing.

I'm not sure the newer lightweight anchors are as well built as my old Danforth High Tensiles, so I want to keep them as long as possible.