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DIY HotVac system for drying out the hull (Patreon)

Published:
2017-07-09 15:11:26
Imported:
2026-06
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Content

Here we go! I've been looking forward to this for a long time. I finally have all the parts for my DIY HotVac type system. 

It's going to be pretty time-consuming, but so far it looks like I'll be able to dry out the hull over the next month and a half. That leaves the September to get a layer of fiberglass on the hull, fairing the hull and applying Copper Coat. It's going to be tight, but I might still be able to splash Athena in the fall :) 

I hope all of you have had a good weekend :) 

Files

Previews only

Sail Life - Sailboat hull VS. vacuum and heat to deal with osmosis - a DIY version of HotVac

In this video, I use a vacuum pump and high heat to attempt to dry out the GRP (fiberglass) hull of my sailboat. This setup is a DIY version of the commercially available system that is known as HotVac. Sadly nobody here in Denmark offers the real HotVac as a service, so my only option is to do it the DIY way. Roger’s blog: http://www.agentlemansyacht.com/ Heat shrink label maker (the machine): US: https://amzn.to/2qsUasH UK: https://amzn.to/2qm4hAk Heat shrink labels: US: https://amzn.to/2jlEBmG UK: https://amzn.to/2izYEMR PDF about osmosis: http://www.passionforpaint.co.uk/downloads/osmosis3v6.pdf The PDS is written by Nigel Clegg. See more here: http://www.passionforpaint.co.uk/ For more information about the commercial HotVac product: http://www.hotvac.com/ HOTVAC is a trademark of PMW ENTERPRISES LIMITED. *** Links *** Sail Life on Patreon: http://bit.ly/SailLifeOnPatreon Sail Life on Facebook: http://bit.ly/SailLifeOnFacebook Sail Life on Twitter: http://bit.ly/SailLifeOnTwitter

Comments

Harold "George" Hofmann Jr

Great video and wonderful results.....now, questions,1.Aren't you emptying a wet vessel without a way to dissipate the water? 2. Have you thought about comparing moisture readings (through the material)? 3. Can you get to the bare hull from the inside of the boat? That way you can REALLY be certain of Athena's future. So that this work will be permanent and not reoccurring. 4.Are you are planning to reapply a sealer to the exterior to keep moisture out going forward. Obviously the hull primer, antifouling paint and gellcoat were not protective enough to prevent this from happening in her past. Thank you (so much) for being the guy you are and sharing this adventure. ((OCD would indicate a disorder)) my good man, there is perfection and pursuing that end, which is what I appreciate in you but NO disorder.

Cees Klumper

Great result! Congrats. Plan on selling the whole silicone-vacuum pump-set-up when you're done with it?

Thomas Perry
>>6071364

I highly recommend this (linked in the video): <a href="http://www.passionforpaint.co.uk/downloads/osmosis3v6.pdf" rel="nofollow noopener" target="_blank">http://www.passionforpaint.co.uk/downloads/osmosis3v6.pdf</a> It didn't really surprise me when Osmosis was mentioned when Athena was purchased. It is just one of those things you deal with when you get a used boat from the early to mid 80's. Even under the worst cases you can repair the hull relatively easy in the context of things like running into coral or rubbing against a concrete slip. I even had a rub rail installed on a slip fall off leaving exposed screw heads grinding against my hull. Just one of those things you learn to live with.... A sailboat is like a bowl. It is the space inside that makes it valuable.