Search found 1439 matches

by kmorin
Thu Jun 20, 2019 12:54 pm
Forum: Alloy Shop Talk
Topic: Fixing severe pitting and holes on alu boat
Replies: 19
Views: 563

Re: Fixing severe pitting and holes on alu boat

G&R, I do understand that 5200 might not hold well in the bow stem area where there's some possible pressure or wash but.... I'd say it was the 'stickiest' and most flexible for small holes aft on the running surface? There, is no pressure there- at least not impact or bow wash. So small holes shoul...
by kmorin
Wed Jun 19, 2019 11:59 am
Forum: Alloy Shop Talk
Topic: Fixing severe pitting and holes on alu boat
Replies: 19
Views: 563

Re: Fixing severe pitting and holes on alu boat

About the existing holes, what would be the suggestion for plugging these? expoxy? durafix soldering? The holes shown in the bottom of the V, rolled into the bottom panel/hull sheet of the boat could be fixed/repaired in a couple of ways. First; If you can clean the metal around the holes so there ...
by kmorin
Wed Jun 19, 2019 1:06 am
Forum: Alloy Shop Talk
Topic: Fixing severe pitting and holes on alu boat
Replies: 19
Views: 563

Re: Fixing severe pitting and holes on alu boat

rasmuss, I'll try to correlate your summary to the posts in the thread somewhat? Clean out with brush, sand blast, then also soda blast? all these methods are used to achieve the same result, eventually. Brushing with SS brushes, sand blasting or soda blasting are all related to one piece of advice:...
by kmorin
Sun Jun 16, 2019 3:45 pm
Forum: Alloy Shop Talk
Topic: Fixing severe pitting and holes on alu boat
Replies: 19
Views: 563

Re: Fixing severe pitting and holes on alu boat

rasmuss, first reply is the corrosion is widespread and not confined to the rolled in V shapes in the bottom panel: that implies the entire bilge was flooded with an acid sufficient in ph to initiate many uniformly spaced sites of corrosion pitting OR a bilge that contained metal salts- like copper....
by kmorin
Sun Jun 16, 2019 12:09 pm
Forum: Your Alloy Boat
Topic: unknown Alloy boat
Replies: 33
Views: 302

Re: unknown Alloy boat

duplicate post
by kmorin
Sun Jun 16, 2019 12:06 pm
Forum: Your Alloy Boat
Topic: unknown Alloy boat
Replies: 33
Views: 302

Re: unknown Alloy boat

the pictures resemble a design by George Calkins (of Bartender fame) called the "Clipper" I believe? Not an exact version of the one example of the Calkin's Clipper; but similar. Also looks like the Down East picnic boats you'd see in "Cellulose Boats" magazine? Sorry no help here. Cheers, Kevin Mor...
by kmorin
Thu Jun 13, 2019 11:50 am
Forum: Alloy Shop Talk
Topic: Fixing severe pitting and holes on alu boat
Replies: 19
Views: 563

Re: Fixing severe pitting and holes on alu boat

This post is a speculation about the photo of the interior bilge corrosion shown in the OP. IT is speculation , not supported by anything more than my experiences and my take on the photos' implications. If aluminum is bent at too tight a radius on the press brake die it will strain harden to a leve...
by kmorin
Sun Jun 09, 2019 4:12 pm
Forum: Alloy Boat Forum
Topic: welding aluminum
Replies: 5
Views: 287

Re: welding aluminum

clambo, "Any chance"???? is a kind of open ended question- yes I can state without reservation that there is "some chance" of a welding circuit to "Fry Electronics or the Engine Electrical Components" ! I did some welding one time, years past, and the engine was alleged to run before I welded- then ...
by kmorin
Tue Jun 04, 2019 4:55 pm
Forum: Alloy Shop Talk
Topic: Fixing severe pitting and holes on alu boat
Replies: 19
Views: 563

Re: Fixing severe pitting and holes on alu boat

rasmuss, not sure exactly on the "zoom" level of the image posted- lots of posters will include a coin or ruler or something for scale- so I can't really remark about this corrosion repair except in general terms. First, I would not recommend you try to weld this material - AT ALL! what is shown is ...
by kmorin
Fri May 24, 2019 12:39 pm
Forum: Alloy Boat Forum
Topic: Sandblast on a 16' Alumaweld hull- thoughts on restoration
Replies: 23
Views: 1106

Re: Sandblast on a 16' Alumaweld hull- thoughts on restoration

alumio, I agree with G&R that company size isn't the biggest/best criteria for judging a company's compliance with good practice! I've sure seen some big name built hulls that were having totally avoidable problems - relating to coatings. So I can't see larger manufacturing companies' efforts as nec...
by kmorin
Wed May 22, 2019 12:21 pm
Forum: Alloy Boat Forum
Topic: Sandblast on a 16' Alumaweld hull- thoughts on restoration
Replies: 23
Views: 1106

Re: Sandblast on a 16' Alumaweld hull- thoughts on restoration

alumio, like paint jobs on metal boats, unless you're in the loop on who did the work, you're left to speculate on the results? Similar to welded aluminum boats years gone by- before there emerged name builders whose work stood up and was eventually shown to be better quality than other builders' bo...
by kmorin
Fri May 17, 2019 10:53 am
Forum: Alloy Boat Forum
Topic: Sandblast on a 16' Alumaweld hull- thoughts on restoration
Replies: 23
Views: 1106

Re: Sandblast on a 16' Alumaweld hull- thoughts on restoration

What do the major outboard makers use? Are all those engines powder coated of some type? I've seen them last pretty well but then have a nearly new little kicker where there's extensive lifting and corrosion under the coating; especially around areas where the intakes and 'zincs' are located! Intere...
by kmorin
Thu May 16, 2019 12:50 pm
Forum: Alloy Boat Forum
Topic: Sandblast on a 16' Alumaweld hull- thoughts on restoration
Replies: 23
Views: 1106

Re: Sandblast on a 16' Alumaweld hull- thoughts on restoration

Alumio', great post, thanks for all that info. Living off the beaten path, we don't have the larger ovens locally and most people are using vinyl side panels or maybe a painted topsides panel; most of the boats I've been involved with recently have been larger- >25' LOA. Good info though, for the re...
by kmorin
Wed May 15, 2019 12:32 pm
Forum: Alloy Boat Forum
Topic: Sandblast on a 16' Alumaweld hull- thoughts on restoration
Replies: 23
Views: 1106

Re: Sandblast on a 16' Alumaweld hull- thoughts on restoration

aluminforte, OK i see what you were suggesting. Yeah an old paint job will come off best with a sand blast, even though the cost might be North of chemicals and acid washing. Especially if the boat were going to be re-coated, especially powder coated. Did not know about the boats you mentioned as po...
by kmorin
Tue May 14, 2019 1:15 am
Forum: Alloy Boat Forum
Topic: Sandblast on a 16' Alumaweld hull- thoughts on restoration
Replies: 23
Views: 1106

Re: Sandblast on a 16' Alumaweld hull- thoughts on restoration

alumio, a full etch is much MUCH less cost and will show more than blasting since the blasting media will peen way too many imperfections. Better to have the acid reveal a uniform color, uniform imperfection reveal and to leave the metal ready for most paint systems? Blasting imparts so much energy ...
by kmorin
Fri May 10, 2019 4:27 pm
Forum: Alloy Shop Talk
Topic: Bow Hatch SUCKS, need drain mod
Replies: 5
Views: 515

Re: Bow Hatch SUCKS, need drain mod

Vos, sorry to be obtuse and dense. I'm old. I didn't know if you were lamenting your builders' designs for the locker drainage or the coaming drainage? Can't offer any experience in my current state of confusion. You talk/text about the hatch coaming filling then talk about the locker's drain..... c...
by kmorin
Thu May 09, 2019 12:10 pm
Forum: Alloy Boat Forum
Topic: How to remove unknown surface imperfections from boat
Replies: 10
Views: 773

Re: How to remove unknown surface imperfections from boat

Rick, in general if the mill scale is left on (?) or if there is corrosion due to clear coats or anodizing that has been permeated the corrosion method is due to the film. Mill scale usually not seen on extrusions - like pipe or angle is porous and hold water vapor allowing the moisture to create an...
by kmorin
Wed May 08, 2019 10:11 pm
Forum: Alloy Boat Forum
Topic: How to remove unknown surface imperfections from boat
Replies: 10
Views: 773

Re: How to remove unknown surface imperfections from boat

Moj, yeah pretty much. The item that throws me the most is the color in the photos... that blue lacing or spider webbing makes me think some other factor is at work? But as long a you can wipe/rub/abrade the surface and etch it too... and it comes clean- well I guess you have your work cut out for y...
by kmorin
Mon May 06, 2019 1:15 pm
Forum: Alloy Boat Forum
Topic: How to remove unknown surface imperfections from boat
Replies: 10
Views: 773

Re: How to remove Salt Deposits from boat.

moj, maybe this isn't as much a mill scale problem as it is a coating that was sprayed on? and now the coating has been penetrated and is showing the corrosion under the film? Another Pacific owner had Nyalac sprayed on his... and he removed it by washing with acid and rubbing with Scotchbrite (tm) ...
by kmorin
Sun May 05, 2019 10:23 pm
Forum: Alloy Boat Forum
Topic: How to remove unknown surface imperfections from boat
Replies: 10
Views: 773

Re: How to remove Salt Deposits from boat.

Moj, not sure if that is really salt deposits? 98% of all welded boats have the mill scale left on the metal- it seems to appeal to their ignorant/uninformed/uneducated buyers??? #1 The shiny stuff ( a coating) is not aluminum. #2 The shiny stuff is Mill Scale. #3 The mill scale is porous and holds ...
by kmorin
Wed May 01, 2019 1:33 pm
Forum: Alloy Shop Talk
Topic: Miller 350 MIG systems
Replies: 2
Views: 1367

Re: Miller 350 MIG systems

More MK PYthon reports for anyone who is using one of these guns? I've reported on the need for the spring loaded/ceramic pellet contact tips, and the isolated/insulated drive rolls- while set up for aluminum wire in an MK Python feeder. NOW, I've found a new problem, but I'm not going to post about...
by kmorin
Mon Apr 29, 2019 12:50 pm
Forum: Manufacturers
Topic: So ... anywho how does Pacific skiff compare to other aluminum boat builders?
Replies: 5
Views: 641

Re: So ... anywho how does Pacific skiff compare to other aluminum boat builders?

dflorea, I don't know if they do or do not foam skiffs shorter than 20' LOA? I only know from online reports they foamed larger boats in one or two instances but don't know more? I think it was the Black Lab distributor, some years past who remarked about the level of effort to make cast blocks of p...
by kmorin
Wed Apr 24, 2019 9:26 pm
Forum: Manufacturers
Topic: So ... anywho how does Pacific skiff compare to other aluminum boat builders?
Replies: 5
Views: 641

Re: So ... anywho how does Pacific skiff compare to other aluminum boat builders?

dflorea, odd that the site didn't provide any reply at all? Pacific is a well known, high quality builder of open welded boats. What I like about the two Pacific's I've seen was the high quality TIG work on the stern, and the fact they have some proprietary extrusions they use in hand railing, and g...
by kmorin
Sat Apr 20, 2019 12:19 pm
Forum: Alloy Shop Talk
Topic: Koffler bay bee price
Replies: 2
Views: 531

Re: Koffler bay bee price

dflorea, isn't that what a marine surveyor helps you to do? They are recognized as an independent, marine professional who is able to declare market value any an in-person inspection? As to banks/credit unions and so on... lending or not lending on a given brand of boat? in my experience (very limit...
by kmorin
Sun Apr 14, 2019 8:22 pm
Forum: Alloy Boat Forum
Topic: Boat purchase, 40’ home built
Replies: 7
Views: 835

Re: Boat purchase, 40’ home built

sea word, first our archives here at the AAB.com Forum have a wealth of info on isolation/insulation and wiring methods that are needed for a welded aluminum boat. Also Ike's site for new builders has more info than you can read if that's all you did for a month. http://newboatbuilders.com/ there ar...