Repair & maintenance: Vacuum bagging

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Vacuum bagging

Printed From: Yachts and Yachting Online
Category: General
Forum Name: Repair & maintenance
Forum Discription: Questions & tips on the subject
URL: http://www.yachtsandyachting.com/forum/forum_posts.asp?TID=3919
Printed Date: 12 May 25 at 12:40am
Software Version: Web Wiz Forums 9.665y - http://www.webwizforums.com

Topic: Vacuum bagging

Posted By: foaminatthedeck
Subject: Vacuum bagging
Date Posted: 10 Feb 08 at 5:26pm

What sort of pump do people use to do small peices of vacuum bagging? I would like to have a go at producing some deck support that would be about 100cm by 20cm.

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Lark 2170

Replies:

Posted By: Ross
Date Posted: 10 Feb 08 at 5:41pm

You could just put it between two flat bits of wood covered in parcel tape and compress it with weight. That has got to be cheaper than buying a pump and the bag.

I think a VACUUM pump (is that contradictory?) is what you would want. I believe you can take the pump out of a fridge or freezer and use that. I can't remember where I read that.

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Ross
If you can't carry it, don't sail it!

Posted By: Villan
Date Posted: 10 Feb 08 at 5:59pm

Just remember to put the pump back in the fridge before you put any food in there ...

And dont do it to a new fridge either, I think " I was vacumbagging carbon " will work as an excuse when you take it back to the shop with a burnt out motor!

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Vareo - 149 "Secrets"
http://www.TandyUKServers.co.uk" rel="nofollow - TandyUK Servers

Posted By: foaminatthedeck
Date Posted: 10 Feb 08 at 6:03pm

Originally posted by Ross

I dont want to make flat plates. As I understand it one of the advantages of VB is reducing the excess resin and so increasing the fibre volume fraction, not sure that woden plates would help and what would stop the wood sticking to the component.

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Lark 2170

Posted By: Ross
Date Posted: 10 Feb 08 at 6:26pm

The parcel tape. Epoxy dosn't stick to it.

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Ross
If you can't carry it, don't sail it!

Posted By: jpbuzz591
Date Posted: 10 Feb 08 at 6:49pm

Duck tape?

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Jp Indoe
Contender 518
Buzz591
Chew Valley Sailing club
Bristol

Posted By: JimC
Date Posted: 10 Feb 08 at 8:08pm

You really need a proper vac pump designed for the job - Fridge motors are designed to have some flow...

With small jobs you can go a long way towards by using peel pluy and wooden jigs, cramps or even wrapping PVC tape. As Ross says parcel tape is invaluable to make thing non stick. I wouldn't recon duct tape to be a substitute...