Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 09-09-2007, 23:16   #1
Registered User
 
Steve Kidson's Avatar

Join Date: Jul 2005
Location: Sydney, Australia
Boat: Hartley 32 RORC; Vixen
Posts: 193
Images: 10
Epoxy Shelf Life Query

I have some epoxy resin that seems to have separated out in its container.

The bottom of the container has gone white and solid, however, it looks like the resin has crystalised. Note that this is the resin only, has not been mixed or contaminated with hardner.

The company that I bought it from has closed down, and I wanted to know if the portion still liquid will be OK, or should I just throw the whole lot out.

It is probably about 12 months old and I have about 2 litres left; always stored in cabinet in my factory, and is in a resealable, air tight container.

I mixed a small sample batch and applied it to an offcut of the surface I want to coat and it appears OK, but wanted to know if anyone else has had this happen.

Any advice or comments welcome.

Fair winds

Steve
__________________

__________________
Steve Kidson is offline   Reply With Quote
Old 10-09-2007, 00:45   #2
Senior Cruiser
 
Alan Wheeler's Avatar

Cruisers Forum Supporter

Join Date: Dec 2003
Location: Marlborough Sounds. New Zealand
Boat: Hartley Tahitian 45ft. Leisure Lady
Posts: 8,038
Images: 102
Yep it happens. Usually if the resin has sat fro sometime in the cold. Put the container into another larger container and pour hot water around it. The heat will melt the crystals and you will have epoxy Resin again.
__________________

__________________
Wheels

For God so loved the world..........He didn't send a committee.
Alan Wheeler is offline   Reply With Quote
Old 10-09-2007, 02:24   #3
Registered User
 
seafox's Avatar

Join Date: Jul 2005
Location: new zealand
Boat: Lotus 10.6
Posts: 1,270
Images: 26
The resin should last for ages. It is the hardner that goes off.
__________________
seafox is offline   Reply With Quote
Old 10-09-2007, 06:40   #4
Registered User
 
bill good's Avatar

Join Date: Oct 2006
Location: Brisbane Australia
Boat: sold
Posts: 721
epoxy

I've think the stock I've got is from the same supplier & the answer is to warm the container up in water. I suspect the cold weather is behind the white.
Regards Bill Goodward
__________________
bill good is offline   Reply With Quote
Old 10-09-2007, 15:55   #5
Registered User
 
Thermal's Avatar

Join Date: Jul 2005
Location: Honolulu
Boat: S2 11.0C 36' Puka Wai
Posts: 157
Images: 1
I second that about the cold weather. I have some epoxy resin here in Hawaii thats several years old and still fine, but bought some of the same stuff last winter that I kept in the mountains of So. Cal. Had a few nights that dropped to -20 deg and most of it turned into white crystals. Stirring it dissolved some of the crystals and the liquid worked fine. The hot water bath sounds like an excellent idea.
And yes, my hardener turns brown with time, but still works fine.
__________________
In theory, Practice and Theory are the same. In practice, they are not.
Thermal is offline   Reply With Quote
Reply

Tags
epoxy

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Metal Boat Owners - A Query on Moisture Control Seaquesta1 Construction, Maintenance & Refit 19 26-11-2010 17:48
epoxy shrinkage northerncat Construction, Maintenance & Refit 1 17-09-2006 02:44
Cheesy Epoxy Boracay Construction, Maintenance & Refit 10 31-08-2006 13:19
Epoxy article GordMay The Library 1 16-02-2005 16:33
Pox and Epoxy Neophytes djakunda Construction, Maintenance & Refit 3 09-05-2004 10:55



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 22:08.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.