So how do steel shipowners prevent rust. Is there anything special in the steel used in ship construction to help reduce corrosion? Or is it just paint and chip, paint and chip...... Thanks.... Dan McCarty *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
dmccarty_at_us.ibm.com wrote: > > So how do steel shipowners prevent rust. Is there anything special in the > steel used in ship construction to help reduce corrosion? Or is it just > paint and chip, paint and chip...... Although I have no real need to know how the following works and so I don't, I have noticed in the marine catalogs some items that are basically sacrificial metal devices that will corrode faster than vital parts made of metal. They draw corrosion induced by electrical charges, I think. Perhaps the best thing to avoid corrosion of your knife and other vital metal items in a kayak is to wear one of these and also use a small battery that will create whatever polarization (negative or positive) that will interact with your corrosion system and affect the sacrificial metal item only. :-) ralph diaz -- ----------------------------------------------------------------------- Ralph Diaz . . . Folding Kayaker newsletter PO Box 0754, New York, NY 10024 Tel: 212-724-5069; E-mail: rdiaz_at_ix.netcom.com "Where's your sea kayak?"----"It's in the bag." ----------------------------------------------------------------------- *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
Hi All, Digging back in memory to my boat yard days I believe that the primary corrosion protection for steel hulls is in fact the paint. Ralph is correct in mentioning the sacrificial strips that are welded to the hull, commonly on the rudder. These are usually Zinc, though I guess sometimes aluminum is used. They are used to prevent electrolysis or galvanic corrosion caused by the ships electrical system and the way it interacts with dissimilar metals. Keeping fresh zincs on steel hulls is vital. If the paint gets damaged and you get current flowing it really raises hell with the ship. I don't really remember much about this phenomenon, except that laying on ones back, on a marine railway, in February, in Maine to weld zincs on a nasty old seiner is not nearly as much fun as paddling. Cheers, Rob Cookson > -----Original Message----- > From: owner-paddlewise_at_lists.intelenet.net > [mailto:owner-paddlewise_at_lists.intelenet.net]On Behalf Of ralph diaz > > > dmccarty_at_us.ibm.com wrote: > > > > So how do steel shipowners prevent rust. Is there anything > special in the > > steel used in ship construction to help reduce corrosion? Or is it just > > paint and chip, paint and chip...... > > Although I have no real need to know how the following works and so I > don't, I have noticed in the marine catalogs some items that are > basically sacrificial metal devices that will corrode faster than vital > parts made of metal. They draw corrosion induced by electrical charges, > I think. Perhaps the best thing to avoid corrosion of your knife and > other vital metal items in a kayak is to wear one of these and also use > a small battery that will create whatever polarization (negative or > positive) that will interact with your corrosion system and affect the > sacrificial metal item only. :-) > > ralph diaz > -- > ----------------------------------------------------------------------- > Ralph Diaz . . . Folding Kayaker newsletter > PO Box 0754, New York, NY 10024 > Tel: 212-724-5069; E-mail: rdiaz_at_ix.netcom.com > "Where's your sea kayak?"----"It's in the bag." > ----------------------------------------------------------------------- > ****************************************************************** > ********* > PaddleWise Paddling Mailing List - All postings copyright the > author and not > to be reproduced outside PaddleWise without author's permission > Submissions: paddlewise_at_lists.intelenet.net > Subscriptions: paddlewise-request_at_lists.intelenet.net > Website: http://www.paddlewise.net/ > ****************************************************************** > ********* *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
in the navy, we chipped & painted the whole aircraft carrier every couple years... paint and chip, paint and chip... paint and chip, paint and chip... fun, fun ;-p mark On Fri, 14 Apr 2000 dmccarty_at_us.ibm.com wrote: > Date: Fri, 14 Apr 2000 11:27:42 -0400 > From: dmccarty_at_us.ibm.com > To: paddlewise_at_lists.intelenet.net > Subject: [Paddlewise] Corrosion > > So how do steel shipowners prevent rust. Is there anything special in the > steel used in ship construction to help reduce corrosion? Or is it just > paint and chip, paint and chip...... > > Thanks.... > Dan McCarty > > > > > *************************************************************************** > PaddleWise Paddling Mailing List - All postings copyright the author and not > to be reproduced outside PaddleWise without author's permission > Submissions: paddlewise_at_lists.intelenet.net > Subscriptions: paddlewise-request_at_lists.intelenet.net > Website: http://www.paddlewise.net/ > *************************************************************************** > -- #------canoeist[at]dotzen[dot]org-------------------------------------- # mark zen o, o__ o_/| o_. po box 474 </ [\/ [_| [_\ ft. lupton, co 80621-0474 (`-/-------/----') (`----|-------\-') #~~~~~~~~~~~~~~~~~~~~~~~~~~~_at_~~~~~~~_at_~~~~~~~~~~~~~~~~~~~_at_~~~~~~~~_at_~~~~~ http://www.jacknjillz.com/paddler [index to club websites i administer] Rocky Mtn Sea Kayak Club, Colorado River Flows, Poudre Paddlers The Colorado Paddlers' Resource, Rocky Mtn Canoe Club Trip Page -- Fortune: A smooth sea never made a skillful mariner. - English Proverb *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
Mark wrote: > > in the navy, we chipped & painted the whole aircraft carrier every couple > years... paint and chip, paint and chip... paint and chip, paint and > chip... > > fun, fun ;-p Merchant marine does the same thing. One summer all I did was chip, paint, and stand wheel watch. Brushes and rollers, no spray. Steve *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
Paint n chip, paint n chip. Of couse, use of genuine Canadian Ballast rocks, which contain essential minerals needed to stop corrosion, is the ultimate solution.... Scott Not far enough South of Elian......... *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
|Paint n chip, paint n chip. Of couse, use of genuine Canadian Ballast rocks, |which contain essential minerals needed to stop corrosion, is the ultimate |solution.... Last night on the TV news, errrrrr, NewsInfomercial, they had a women who uses SPECIAL black rocks that are then heated and used to massage people. Yes, massage. With rocks. You also get to lay on the rocks. While you are rubbed with the rocks. The rocks gave up their energy to the one they rubbed. When I first saw this I was SURE the reader would say they were the All Purpose Canadian Ballast Rocks but she never mentioned our famous trade marked rocks from up north..... I am NOT making this up. I'm also a bit disappointed that our Rock Distributor Doctor did not tell us about the healing power of the Ballast Rocks(tm). Very disappointed! Shocked Actually! 8-) Later... DanIAMNOTMakngThisUp! *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
This archive was generated by hypermail 2.4.0 : Thu Aug 21 2025 - 16:33:12 PDT