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Old 08-06-2012, 01:15 PM   #1
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crestomer

Anyone know which crestomer can be used for core bonding to a derakane vinylester boat?
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Old 08-06-2012, 02:53 PM   #2
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1196PA I'd have thought.
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Old 08-06-2012, 04:06 PM   #3
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Don't you want to be using fuscia or turquoise?
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Old 08-06-2012, 09:19 PM   #4
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1196PA I'd have thought.
Emailed SB asking them. Can't
Find any answers on google
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Old 09-06-2012, 08:59 AM   #5
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Is this new build or repair?
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Old 09-06-2012, 02:52 PM   #6
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Repair. Adding balsa to running surface
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Old 09-06-2012, 05:32 PM   #7
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I'm going through the same repair.
I will use csm to bed it down. Was considering bedding compounds too but they are expensive!

I believe on the website of Baltek there is a manual how to do it.
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Old 11-06-2012, 07:01 AM   #8
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Getting stuff to adhere to cured epoxy based vinylester is not easy. Best to use an epoxy based product.
Before anyone quotes resin sellers tech spec at me I know they all say it is no problem. But at the end of the day I have seen too many polyester repairs fall out of vinylester layups.
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Old 12-06-2012, 12:14 PM   #9
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Getting stuff to adhere to cured epoxy based vinylester is not easy. Best to use an epoxy based product.
Before anyone quotes resin sellers tech spec at me I know they all say it is no problem. But at the end of the day I have seen too many polyester repairs fall out of vinylester layups.
Kitten much appreciated, after talks with a few others, im gonna go epoxy. I have some stringer hollows where the foam sat into spray rails, I intend to fill this with epoxy mixed with high density filler 404, then over laminate. 45/45 cloth.

What filler should I use to bed balsa down, does it need to be soft or hard. Balsa is hard under compression so should I match it with more high density filler, or something easier to sand anfd fair?
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Old 12-06-2012, 02:30 PM   #10
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Sorry. Don't use a lot of epoxy so not up with what is available.
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Old 12-06-2012, 06:02 PM   #11
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Kitten much appreciated, after talks with a few others, im gonna go epoxy. I have some stringer hollows where the foam sat into spray rails, I intend to fill this with epoxy mixed with high density filler 404, then over laminate. 45/45 cloth.

What filler should I use to bed balsa down, does it need to be soft or hard. Balsa is hard under compression so should I match it with more high density filler, or something easier to sand anfd fair?
Epoxy thickened with cabosil (silica)
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Old 12-06-2012, 06:20 PM   #12
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Have a look on the baltek site it's all there
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Speed costs weight so what do we cut off first
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Old 13-06-2012, 06:08 PM   #13
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http://www.corematerials.3acomposites.com/353.html

found it in the end. High density it is
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