[Rhodes22-list] How bad is my CB plate?

[The Rhodes 22 Email List]

James:

I agree that epoxy will adhere to clean and roughed up gelcoat. Removing the
gelcoat s probably better to get the teeth of the epoxy into the substrate
but epoxy filler is feathered into gelcoat all the time. 
I am not sure what you mean by "chop" but if this refers to loose fibre then
I can say that I have used it to fill larger voids. I have even used sawdust
with epoxy to fill large non-structural voids. The only thing to watch out
for is using matt to build thickness in layups. Apparently the epoxy just
does not penetrate mat well and you are likely to have small voids in the
lamination and that is not good.

Graham 


-----Original Message-----
From: rhodes22-list-bounces at rhodes22.org
[mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of The Rhodes 22 Email
List
Sent: January-18-15 8:52 PM
To: The Rhodes 22 Email List
Subject: Re: [Rhodes22-list] How bad is my CB plate?

Graham,  

I have been doing a lot of reading recently on fiberglass repair. And you
are correct in regards to making sure the mould release agent is gone,  but
the two different authors i have read state that you just have to give the
gel coat some teeth to hold the new epoxy.  They suggest sanding lightly
with 100 grit paper. 

They both state that extra material should be removed any place that is
cracked by grinding it into a shallow 'V'. One recommends using using 'chop'
as the material to fill it with then saturated with epoxy. 

The other days that pretty much any fiberglass material will work for fill. 

James

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