Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 14-06-2016, 10:49   #1
Registered User
Sonosailor's Avatar

Join Date: Mar 2003
Location: Fredericton, NB, Canada in the summer and fall; Caribbean in winter and spring aboard Cat Tales.
Boat: FP Tobago 35 (and a H-21 SE)
Posts: 553
Images: 8
Repair Saildrive Coatings

Amazingly, this thread does not exist yet.

I damaged my coatings while replacing perfectly good diaphragms with identical newer diaphragms.

Can we discuss how we should repair saildrive coatings for saltwater use?

I'll start with a proposition:
1. Clean the area with the antifoul solvent to get as much of the antifoul paint out of the way;
2. Clean with acetone to remove oils and possibly other contaminants;
3. Sand the area, feathering over the layers of original or hardened paint, and further backing up the antifoul paint from the repair area;
4. Without recleaning, dust sanded area;
5. Spray or paint bare, abraded aluminum with zinc chromate, and allow to cure/dry;
6. Paint with acceptable primer over zinc chromate;
7. Paint over primer with two-part epoxy paint;
8. Paint over epoxy paint with tin-based anti-foul paint.

How would you improve that, what would you change, and/or what are the favoured (by you) sources for each product?

After we get this out of the way, maybe we can move on for those who want to repair any pitting they have.

We're all in this together (Red Green)
Sonosailor is offline   Reply With Quote
Old 14-06-2016, 22:51   #2
Registered User

Join Date: Jan 2008
Location: Med
Boat: Island Spirit 401 Catamaran
Posts: 331
Re: Repair Saildrive Coatings

I repaired mine using West epoxy. Brought metal back to bright unfinished state and then cleaned with wipes disigned for cleaning aluminum (probably overkill). I'm told it is important to coat aluminum within 24hrs of removing any tarnish otherwise oxidation sets in. International told me to coat the West with their epoxy barrier paint so paint would have better chance of sticking. Did this 5 years ago; no problems so far that I am aware of.
Ostinato is offline   Reply With Quote

sail, saildrive

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
PPG Coatings buys AkzoNobel Tortuga's Lie Construction, Maintenance & Refit 2 21-12-2012 05:09
Coppercoat by Aquarius Marine Coatings UK sigrid Construction, Maintenance & Refit 30 25-11-2012 02:12
Soy Strip Marine Coatings Remover Gallon casual Construction, Maintenance & Refit 4 08-05-2012 06:50
Balistic Coatings Nemo55 Construction, Maintenance & Refit 20 02-03-2012 09:06
Barrier Coatings Hi Ho Construction, Maintenance & Refit 7 17-12-2008 21:40

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 11:41.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.