Thread Tools Search this Thread
Old 10 March 2006, 16:03   #11
Country: UK - England
Town: Southampton
Boat name: Searider / War Shot
Make: Avon / Scorpion
Length: 4m +
Engine: 30hp Yam / 150hp opt
Join Date: Sep 2003
Posts: 1,846
It's normal practice to scrape off antifouling paint as part of a survey - don't remove any thing else though!

Osmosis is all about difference in contrations of solutions either side of a semi permeable menbrane.
The resin and gelcoat is the membrane.
The liquid in the blister site is the concentrated solution.
The water is the weaker solution.

The blister forms and enlarges because the water will migrate into the concentrated solution until the solutions are equal in concentration. This never happens though.

Fresh water is a "weaker" solution than salt water. Hence a greater difference in pressures driving the blistering process.

Searider is online now   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 15:32.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.