Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 15-04-2012, 14:35   #1
Registered User

Join Date: Sep 2011
Posts: 15
Deck spots

I have a early 70's Catalina 25. I am just starting to work on some of the cosmetic issues. I was hoping for some input on the attached pictures.

1. What are these? I am thinking that they are blisters that should be easy to repair. Am I correct?

2. What is best way to repair. Since I do not believe the glass underneath is comprised I should be able to just do a basic gelcoat repair. Again, am I correct.

I am currently reading many of the old threads but wanted some input on my pictures.

As always thanks!
Attached Thumbnails
Click image for larger version

Name:	image-498291123.jpg
Views:	115
Size:	350.3 KB
ID:	39993   Click image for larger version

Name:	image-2454268985.jpg
Views:	114
Size:	359.8 KB
ID:	39994  

Click image for larger version

Name:	image-58232340.jpg
Views:	118
Size:	351.0 KB
ID:	39995  
__________________

__________________
Dhmosier is offline   Reply With Quote
Old 15-04-2012, 15:42   #2
Moderator Emeritus
 
David M's Avatar

Cruisers Forum Supporter

Join Date: Sep 2007
Location: San Francisco Bay
Boat: research vessel
Posts: 10,150
Re: Deck spots

The gelcoat has thinned from its original thickness. You either need gelcoat replacement or paint. If the blemishes cover large areas then the most practical thing to do is to have an LPU sprayed on, that's if you want a really nice professional looking job.

White is nearly impossible to match, so you want to do a large area anyway.

A less than perfect job would be to brush on paint. An LPU ideally, a one part paint less than ideally.
__________________

__________________
David

Life begins where land ends.
David M is offline   Reply With Quote
Old 15-04-2012, 17:49   #3
Registered User

Join Date: Sep 2011
Posts: 15
David,

I have spent much of my life restoring old mustangs and have a very good compressor/sprayer set up that I used for everything other than body work ( I painted interior, engine compartments, etc). Do you think I could spray the entire deck if I took a week off work for prep to finish?
__________________
Dhmosier is offline   Reply With Quote
Old 15-04-2012, 18:00   #4
Senior Cruiser
 
Cheechako's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: Skagit City, WA
Posts: 19,363
Re: Deck spots

A hard work week maybe. Depends on if you are going to remove all hardware etc or just tape around it. A lot of work for a boat not worth too much. How many are there? could you just tip ingel coat in each dot with a mini bursh?
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard











Cheechako is offline   Reply With Quote
Old 15-04-2012, 20:23   #5
Sponsoring Vendor
 
HopCar's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: May 2011
Location: Miami Florida
Boat: Ellis Flybridge 28
Posts: 3,162
Re: Deck spots

I agree with David M on this. It looks like the gel coat has gotten thin. Not a surprise in a boat of that age. The easiest cure is a good Awl Grip or other LPU job. With your experience spray painting it shouldn't be beyond your skills. My boat had similar problems. I just lived with it until I got a soft spot in the deck. I had the yard repair the bad area in the deck and then Awl Grip the whole thing. It looks better than new.
__________________
Hopkins-Carter Marine Supplies & Fishing Tackle
What You Need, at the Price You Want...with Service!
HopCar is online now   Reply With Quote
Old 16-04-2012, 09:33   #6
Resin Head
 
minaret's Avatar

Cruisers Forum Supporter

Join Date: Aug 2007
Location: Seattle WA
Boat: Nauticat
Posts: 7,199
Images: 52
Re: Deck spots

That looks like alligation in a previous repair to me. If you look carefully at the first pic I think I see a blend line/poor color match. Easy fix if so. Is it just one spot or are similar spots everywhere?
__________________
minaret is offline   Reply With Quote
Old 16-04-2012, 09:41   #7
Moderator Emeritus
 
David M's Avatar

Cruisers Forum Supporter

Join Date: Sep 2007
Location: San Francisco Bay
Boat: research vessel
Posts: 10,150
Re: Deck spots

Quote:
Originally Posted by Dhmosier View Post
David,

I have spent much of my life restoring old mustangs and have a very good compressor/sprayer set up that I used for everything other than body work ( I painted interior, engine compartments, etc). Do you think I could spray the entire deck if I took a week off work for prep to finish?
If you are already experienced spraying car paint then yes, I think you could do it and do a really good job at it. Just don't use Bondo for your filler. I would use an epoxy filler intended for boats, Interlux makes a good one.

The only concern left is spraying in a place where nobody is going to object. Many boat yards and marinas do not allow owners to spray paint. You might have to shop around for one that does allow spraying.

You might also want to find something to practice spraying before you spray your boat. Getting Awlgrip just right can be tricky.
__________________
David

Life begins where land ends.
David M is offline   Reply With Quote
Old 16-04-2012, 18:44   #8
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 17,314
Re: Deck spots

Aesthetics. Practically just fix the gelco. If you get the perfect color match now it will show up in the future anyway.

b.
__________________
barnakiel is offline   Reply With Quote
Old 16-04-2012, 18:58   #9
Registered User

Join Date: Sep 2011
Posts: 15
Re: Deck spots

Thanks Everyone!

Yes finding a place to spray is going to be a problem. Asked and the sail club says no.

I would like it to look nice but does not have to be perfect. Anything would look better than the measles look.

These are the worst spots but there are many more around the boat.

If I can not spray are there other good options?

I am worried that the deck will get soft if I do nothing to reseal.

Yes I understand that I am way underwater on this boat already. The new outboard did that in spades. However, it is my first project so I am willing to write off extra expense to education.

Thanks for all of the help!
__________________
Dhmosier is offline   Reply With Quote
Old 16-04-2012, 20:06   #10
Resin Head
 
minaret's Avatar

Cruisers Forum Supporter

Join Date: Aug 2007
Location: Seattle WA
Boat: Nauticat
Posts: 7,199
Images: 52
Re: Deck spots

Quote:
Originally Posted by barnakiel View Post
Aesthetics. Practically just fix the gelco. If you get the perfect color match now it will show up in the future anyway.

b.

This is not true. The common belief that patched gelcoat ages differently than the gel around it is a falsehood. I have done hundreds of gelcoat repairs which cannot be seen after twenty years or more. I believe that this urban legend has been created by people color matching to the oxidized surface instead of sanding back to the original color and polishing before color matching. Then once the repair oxidizes as well the match is off.
__________________
minaret is offline   Reply With Quote
Old 17-04-2012, 06:35   #11
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 17,314
Re: Deck spots

Quote:
Originally Posted by minaret View Post
This is not true. The common belief that patched gelcoat ages differently than the gel around it is a falsehood. I have done hundreds of gelcoat repairs which cannot be seen after twenty years or more. I believe that this urban legend has been created by people color matching to the oxidized surface instead of sanding back to the original color and polishing before color matching. Then once the repair oxidizes as well the match is off.
With hundreds of gelco repairs behind you, you qualify as a specialized pro.

I was talking from the perspective of a typical boat owner doing the job with their own hands.

b.
__________________
barnakiel is offline   Reply With Quote
Old 17-04-2012, 11:05   #12
Resin Head
 
minaret's Avatar

Cruisers Forum Supporter

Join Date: Aug 2007
Location: Seattle WA
Boat: Nauticat
Posts: 7,199
Images: 52
Re: Deck spots

Quote:
Originally Posted by barnakiel View Post
With hundreds of gelco repairs behind you, you qualify as a specialized pro.

I was talking from the perspective of a typical boat owner doing the job with their own hands.

b.

Me too. A typical boat owner can do this job with their own hands perfectly well, as long as they are well informed and not mislead by falsehoods. That's the point of the forum, is it not? To spread good info, not bad? That particular belief is one I have heard from all sorts of people, many pro's included. But it's just not true, in most cases. There are many ways to create an effect that might cause you to believe it's true, over catalyzation and poor prep for matching being the most common, but it's not. Anyone can do perfect gelcoat repairs that last with determination and practice.
__________________
minaret is offline   Reply With Quote
Old 17-04-2012, 11:45   #13
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 17,314
Re: Deck spots

Quote:
Originally Posted by minaret View Post
Me too. A typical boat owner can do this job with their own hands perfectly well, as long as they are well informed and not mislead by falsehoods. That's the point of the forum, is it not? To spread good info, not bad? That particular belief is one I have heard from all sorts of people, many pro's included. But it's just not true, in most cases. There are many ways to create an effect that might cause you to believe it's true, over catalyzation and poor prep for matching being the most common, but it's not. Anyone can do perfect gelcoat repairs that last with determination and practice.
You must be right. I must try harder next time.

My job seems to hold up all right but I can clearly see where I fixed things. Our gelco is cream (lighter shade than IP but sort of similar color). After a couple of years in the tropics the color difference between the original and the repair is obvious (to me, visitors do not seem to notice).

b.
__________________

__________________
barnakiel is offline   Reply With Quote
Reply

Tags
deck

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




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 10:06.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.