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Re: Epoxy: Fill coat tricks with Raka?
By:Dave Houser
Date: 4/7/2008, 1:10 am
In Response To: Epoxy: Fill coat tricks with Raka? (Kudzu)

: Got my hull glassed this morning. I was thinking ahead to fill coats and
: wondering if there is are any tricks when working with Raka epoxy? It is
: so thin, looks like it will take a couple of coats to ever get the weave
: filled.

: BTW I am painting the hull. I had thought about thickening it maybe? If so
: what would be the most sandable filler? I misjudged on my silica and I
: need to order some more anyway.

I roll RAKA fill coats with a thin yellow foam roller and tip off with a foam brush. If the epoxy kicks before applying throw it away and mix a new batch. I use fast hardener for fill coats (slow for wet out) and recoat every two hours. As soon as the epoxy sets enough to not wet your finger when touched your can recoat even if it is still tacky. Over 6 oz. standard cloth, I usually apply four fill coats then let full cure, then sand, then two more fill coats, cure, then sand. Use a cabinet scraper on any runs before sanding. You should not have any runs if you use a roller.

Silica cannot be sanded smooth and soft fillers scratch too easy. The only filler to consider is the graphite/silica for a black coat.

Messages In This Thread

Epoxy: Fill coat tricks with Raka?
Kudzu -- 4/5/2008, 4:16 pm
Re: Epoxy: Fill coat tricks with Raka?
Dave Houser -- 4/7/2008, 1:10 am
Re: Epoxy: Fill coat tricks with Raka?
Pedro Almeida -- 4/6/2008, 12:18 am
Pedro, what do you use to spread the thicker epoxy
Gini -- 7/29/2008, 10:21 am
Re: Pedro, what do you use to spread the thicker e
Pedro Almeida -- 7/29/2008, 5:21 pm
Pedro - where do you get those bristle rollers?
Brion -- 7/29/2008, 8:24 pm
Ah-Ha! There they are! *LINK*
Pedro Almeida -- 7/29/2008, 9:36 pm
Re: Ah-Ha! There they are!
Gini -- 7/30/2008, 12:22 am
Re: Ah-Ha! There they are!
Brion -- 7/29/2008, 9:46 pm
Re: Ah-Ha! There they are!
Brion -- 7/29/2008, 9:50 pm
Re: Ah-Ha! There they are!
Pedro Almeida -- 7/30/2008, 6:03 pm
Re: Ah-Ha! There they are!
Tom Raymond -- 7/31/2008, 12:34 pm
Seal coat or not?
Pedro Almeida -- 7/31/2008, 1:06 pm
Re: Pedro - where do you get those bristle rollers
Pedro Almeida -- 7/29/2008, 9:19 pm
How about this SKU
Gini -- 7/30/2008, 12:27 am
Re: Epoxy: Fill coat tricks with Raka?
Kudzu -- 4/6/2008, 8:24 am
Re: Epoxy: Fill coat tricks with Raka?
Tim -- 7/28/2008, 11:14 am
Re: Epoxy: Fill coat tricks with Raka?
Kudzu -- 7/28/2008, 5:13 pm