yellowing and poka dots !

Paul · Post by **Paul** » Feb 10th, '00, 11:53

The interior gelcoat on our '84 is turning a blotchy yellowish color over the entire liner. There are also apparent repair areas where the factory had touched up nicks and other minor mold flaws that have turned a darker pinkish brown color. They are sprayed repair areas about 2" - 3" in area that are scattered about the visible liner. There are 5 of them.

Anyone else have these poka dots? Any easy way to repair the cosmetics without painting the liner? Definately don't want to do that.

Larry Demers · Post by **Larry Demers** » Feb 10th, '00, 16:40

This is a fairly common problem on Cape Dory's I'm afraid. I have perhaps 3 or 4 blotches over the entire interior headliner. The largest is perhaps 3 in. by 2 in. I have been told that this is uncured activator in the fiberglass..and I have been told it's something called amine blush, an artifact of the molding process, and can be removed. There is no removing these blotches, only repainting after sealing them off with a lacquer, which is what we plan to do someday. It's regretable that this kind of crud made it out the door of the factory. But it's not a serious problem, and is repairable to new condition with just a bit of work.

Good Luck,

Larry DeMers
s/v DeLaMer
Cape Dory 30

Paul wrote: The interior gelcoat on our '84 is turning a blotchy yellowish color over the entire liner. There are also apparent repair areas where the factory had touched up nicks and other minor mold flaws that have turned a darker pinkish brown color. They are sprayed repair areas about 2" - 3" in area that are scattered about the visible liner. There are 5 of them.

Anyone else have these poka dots? Any easy way to repair the cosmetics without painting the liner? Definately don't want to do that.

demers@sgi.com

M. R. Bober · Post by **M. R. Bober** » Feb 10th, '00, 20:37

Have you tried a 10-15% bleach/water solution?
Mitchell Bober
RESPITE
CD330

thebobers@erols.com

Paul · Post by **Paul** » Feb 10th, '00, 21:07

Well I have tried just about every cleaner imaginable but not a water/bleach combo inparticular. I'll give it a shot but am not holding my breath because several of the other cleaners had a bleach component and didn't touch it.

I'm familiar with amine blush which is a waxy by-product typical with the curing of epoxies. Amine blush is hazy and water soluble and will wipe right off with a dampened rag. I do not think it is amine blush at all. I think it is some sort of chemical leaching from the gelcoat or oxidation, but I'm not sure what. Any glass experts out there?

The blotch patches I was trying to describe sound just like your Larry. But mine are definately repaired areas of some sort of cosmetic flaw. You can see after looking closely that the spotted area is a different spray pattern than the rest of the liner gelcoat. Probably a bad mix.

This is a fairly common problem on Cape Dory's I'm afraid. I have perhaps 3 or 4 blotches over the entire interior headliner. The largest is perhaps 3 in. by 2 in. I have been told that this is uncured activator in the fiberglass..and I have been told it's something called amine blush, an artifact of the molding process, and can be removed. There is no removing these blotches, only repainting after sealing them off with a lacquer, which is what we plan to do someday. It's regretable that this kind of crud made it out the door of the factory. But it's not a serious problem, and is repairable to new condition with just a bit of work.

Larry Demers wrote: Good Luck,

Larry DeMers
s/v DeLaMer
Cape Dory 30

Paul wrote: The interior gelcoat on our '84 is turning a blotchy yellowish color over the entire liner. There are also apparent repair areas where the factory had touched up nicks and other minor mold flaws that have turned a darker pinkish brown color. They are sprayed repair areas about 2" - 3" in area that are scattered about the visible liner. There are 5 of them.

Anyone else have these poka dots? Any easy way to repair the cosmetics without painting the liner? Definately don't want to do that.

Patrick Turner · Post by **Patrick Turner** » Feb 11th, '00, 09:38

You might try spraying a little gelcoat over the area. Awhile back there was some discussion about gelcoat crack repair and the name of an outfit that will mach your gelcoat color if you can send them a sample.Do a search. If that's not possible....the formula they have there for Cape Dory's will probably be very close. That's what I did. I just got what they had for CD's....got a small aerosol sprayer from West Marine ($6)....put plastic drops everywhere....put on a disposable jump suit for this sort of thing....the appropriate head/eye/lung protection and I was off. With some carefull masking....it looks like new. It's a bit of a job, but well within the reach of the DIY'er.

Pat

patturner@earthlink.net

Larry DeMers · Post by **Larry DeMers** » Feb 11th, '00, 14:37

Hey, good idea! Here is the address and other info for the Gel Coat used on Cape Dory's:

Gel Coat Products Inc.
P.O. Box 17336
1109 N.W. 52nd.
Seattle, Washington 98107
206-781-1162

The color is custom beige with wax #53097

Hope this helps.

Larry DeMers
s/v DeLaMer
Cape Dory 30 ~~~Riding the waves of Lake Superior~~~~

Patrick Turner wrote: You might try spraying a little gelcoat over the area. Awhile back there was some discussion about gelcoat crack repair and the name of an outfit that will mach your gelcoat color if you can send them a sample.Do a search. If that's not possible....the formula they have there for Cape Dory's will probably be very close. That's what I did. I just got what they had for CD's....got a small aerosol sprayer from West Marine ($6)....put plastic drops everywhere....put on a disposable jump suit for this sort of thing....the appropriate head/eye/lung protection and I was off. With some carefull masking....it looks like new. It's a bit of a job, but well within the reach of the DIY'er.

Pat

demers@sgi.com

Paul · Post by **Paul** » Feb 11th, '00, 14:39

Patrick Turner wrote: You might try spraying a little gelcoat over the area. Awhile back there was some discussion about gelcoat crack repair and the name of an outfit that will mach your gelcoat color if you can send them a sample.Do a search. If that's not possible....the formula they have there for Cape Dory's will probably be very close. That's what I did. I just got what they had for CD's....got a small aerosol sprayer from West Marine ($6)....put plastic drops everywhere....put on a disposable jump suit for this sort of thing....the appropriate head/eye/lung protection and I was off. With some carefull masking....it looks like new. It's a bit of a job, but well within the reach of the DIY'er.

Pat

So Pat you had the same blothces as Larry and I? How many others have these in their boats, we can't be the only three, can we?
You just feathered in the gelcoat and it looks perfect?

Russell · Post by **Russell** » Feb 11th, '00, 15:55

It would be useful to have a source for fixing exterior dings. (Our CD 36 was built before they had the tooling for the interior liners, so that is not an issue for us.)

Catherine Monaghan · Post by **Catherine Monaghan** » Feb 11th, '00, 18:02

In a previous posting regarding gelcoat crack repair, Dana Arenius wrote "...I had a "matched" white (#042997) and a "matched" biege (#053097) gelcoat manufactured for me by Gelcoat Products, Inc. of Seattle, Wash. My CD26 is a 1985. Color match was EXCELLENT..."

To read the posting go to:
<a href="http://www.toolworks.com/cgi-bin/tw/wwb ... cd&1409</a>

For Dana's entire repair process, see the following links:

Part 1: <a href="http://www.toolworks.com/cgi-bin/tw/wwb ... cd&1135</a>
Part 2: <a href="http://www.toolworks.com/cgi-bin/tw/wwb ... cd&1241</a>
Part 3: <a href="http://www.toolworks.com/cgi-bin/tw/wwb ... cd&1249</a>
Part 4: <a href="http://www.toolworks.com/cgi-bin/tw/wwb ... cd&1366</a>
Part 5: <a href="http://www.toolworks.com/cgi-bin/tw/wwb ... cd&1409</a>

Thank you Dana!

catherine_monaghan@merck.com
CD32 Realization, #3
Rahway, NJ
Raritan Bay
<a href="http://www.hometown.aol.com/bcomet/real ... lization's Home Page</a>

Russell wrote: It would be useful to have a source for fixing exterior dings. (Our CD 36 was built before they had the tooling for the interior liners, so that is not an issue for us.)

catherine_monaghan@merck.com

John Nuttall · Post by **John Nuttall** » Feb 11th, '00, 19:44

amazing......

Also there is a company in MA, Advanced Plastics that makes Polyester Paint (gel coat). It was used on my 31 a few years back to re-roll the nonskid. Perfect match, nice grip. BTW I have been told it's where CD got their stuff. No verification on that. Just scuttlebutt

Thanks for the post
John

nuttallj@msn.com

Russell · Post by **Russell** » Feb 11th, '00, 22:24

steve alarcon · Post by **steve alarcon** » Feb 12th, '00, 01:08

We've got 'em. Drives my wife nuts. Glad to see this discussion.

Steve Alarcon
CD30 Temerity
Seattle

ALARCON3@PRODIGY.COM

Steve Alarcon · Post by **Steve Alarcon** » Feb 12th, '00, 01:15

Ya' know, I don't think anyone ever really said thanks to Dana. So, for the rest of the board....Dana, thanks! You work and research has added a lot to the "foundation" information that I have printed and added to TEMERITY's log book!

Steve Alarcon
CD30 Temerity
Seattle

P.S. Your web page is great too!

alarcon3@prodigy.net

Catherine Monaghan · Post by **Catherine Monaghan** » Feb 12th, '00, 16:33

Sometimes my memory serves me well, sometimes I swear I have Alzheimers. Anyway, I remembered Dana's postings. They caught my interest way back when since Realization suffers from those same annoying gelcoat cracks. Eventually I'll have to repair them so I took note of the gelcoat product numbers and the process he used.

catherine_monaghan@merck.com
CD32 Realization, #3
Rahway, NJ
Raritan Bay

John Nuttall wrote: amazing......

Also there is a company in MA, Advanced Plastics that makes Polyester Paint (gel coat). It was used on my 31 a few years back to re-roll the nonskid. Perfect match, nice grip. BTW I have been told it's where CD got their stuff. No verification on that. Just scuttlebutt

Thanks for the post
John

catherine_monaghan@merck.com

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yellowing and poka dots !

yellowing and poka dots !

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Re: Gel Coat Source

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Do you know the exterior color?

Re: White #042997 and Biege (non-skid) #053097

Catherine !! How do you find all this stuff, your

Thanks !! (nm)

Re: yellowing and poka dots !

Re: White #042997 and Biege (non-skid) #053097

Re: I'm a computer geek and a sailing/CD freak!