Thank you!
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| Surface preparation question prior to using Sikaflex 291? http://www.hobie.com/au/en/forums/viewtopic.php?f=69&t=51592 |
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| Author: | siravingmon [ Tue Jun 10, 2014 11:17 am ] |
| Post subject: | Surface preparation question prior to using Sikaflex 291? |
While I wait for my new AI to arrive, I've been researching common problems and solutions... Preventing leaks through the 8 inch hatches and self tapping screw holes by sealing with Sikaflex 291 or Marine Goop came up a fair bit, so I was wondering what people think is the most effective surface preparation prior to applying sealants - alcohol or acetone? (I have some Sikaflex 291 and I'd use Sikaflex primer, but it's not available locally) PS From what I've read Hobie now provide better rudder cable seals - I'm assuming that they haven't also started sealing the 8" hatches and self-tapping screws themselves since I read the leaks messages, right? |
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| Author: | Salty Dawg [ Tue Jun 10, 2014 11:46 am ] |
| Post subject: | Re: Surface preparation question prior to using Sikaflex 291 |
I work in the aerospace industry and the NASA standard is to do a acetone wipe first to get rid of any grease or oil residue and then wipe with alcohol that will then leave a super clean surface. The same if you are bonding anything but do a scotchbrite rub on it to rough it up first and then follow it with acetone then alcohol. That thing will stick longer then a bad reputation. |
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| Author: | siravingmon [ Tue Jun 10, 2014 7:34 pm ] |
| Post subject: | Re: Surface preparation question prior to using Sikaflex 291 |
Thank you!
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