| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 10.1 | COPPER KILLS ALUMINUM | REGENT::BURBINE | | Wed May 18 1988 11:32 | 14 |
| re: I've heard that the new bottom paint (copper based) can wreak
electrolysis havick with outdrives. Anyone know about this?
Is this true or an exageration?
Bill,
It is not an exageration as copper paint will kill your outdrive
in a fairly short time. That is why you can not use copper on
aluminum boats also. When I used to have outdrives I always used
Interlux 'TRI-LUX' This is a tin based paint that is compatable
with aluminum. Yes tin based paints are outlawed in Mass now
except for use on aluminum boats. (construed also outdrives)
norm
|
| 10.2 | What paint should I use? | NRADM::KARL | | Wed May 18 1988 19:31 | 15 |
| I use INTERLUX on the outdrive itself, but have used Pettit Atlantic
formula UNIPOXY on the boat. That, I believe, has a lot of copper.
So I think that I have already been using this on my boat, which
may be why the "sacrificial anode" is always half disintegrated
by the end of the season. I had a new outdrive piston put on last
year, and the eye at the end that attaches to the outdrive was
partly disintegrated this spring when I looked at it. I might not
have painted it with INTERLUX which could be the problem.
Should I not have been using UNIPOXY, and if not, what should I
use, TIN free? It's a fiberglass boat (with a MERC I/O). If I shouldn't
be using UNIPOXY, should I sand it off (this could be a real job).
Bill K.
|
| 10.3 | Corrosion/outdrives | REGENT::BURBINE | | Thu May 19 1988 11:38 | 27 |
| re: < Note 10.2 by NRADM::KARL >
-< What paint should I use? >-
I use INTERLUX on the outdrive itself, but have used Pettit Atlantic
formula UNIPOXY on the boat. That, I believe, has a lot of copper.
Bill
Everybody has a different opinion on this one but I believe the
bottom line is:
1. Expect to use more than one zinc per season if you are in an
active area. Noe sweat they are easy to change.
2. Use the biggest zinc you can. They come in two sizes for
mercruisers but you may have to notch the big one a little to
clear the tip of your prop.
3. Add an active corrosion control system to the unit. Mercruiser
has this as an easy add on option only about $100 or so.
4. It is ok to use copper on the boat but never on the outdrive.
Happy sailing
norm
|
| 10.4 | MICRON-33 PAINT | USRCV1::FRASCH | | Tue May 31 1988 20:53 | 5 |
| I use Interlux "Micron-33" on the bottom (glass) and the Interlux
I/O Spray on the I/O being careful to tape up the anodes when I
spray. (3 on a Mercruiser)
Don
|
| 10.5 | NOW you tell me.... | CURIE::THACKERAY | Ray Thackeray MR03 DTN 297-5622 | Mon Jul 25 1988 18:28 | 19 |
| Oh, bloody great.
I just finished painting the bottom of my Bayliner Sunbridge
(Fibreglass) AND the Volvo 280 outdrive with copper based Interlux.
I wasn't going to paint the drive, but my friendly-neighbourhood
boatyard owner said I should, definitely, no problems.
The boat went into the water this morning.
Aaaaaaaaagggghh!
Anyway, if I simply watch the zinc ring and replace where necessary
throughout the season, will that protect my drive?
Tally-ho,
Ray
|