mixing polyester resin with hardener

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srsoupy

Member - Posts: 9

Joined: April 22, 2006

Location: Suriname

Posted: April 21, 2009 at 9:13 AM / IP Logged

I picked up a can of bondo fiberglass resin. It came with the hardener.

Last night, I did a small test and mixed 1 oz resin: 12 drops MEKP

The problem is that while i am stirring the mixture it gelled up pretty fast but stays sticky.

Is this normal? should the resin with hardener gells when you stir the mixture?

soupy

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pintac420

Member - Posts: 2

Joined: April 22, 2009

Location: Alberta, Canada

Posted: April 22, 2009 at 2:31 AM / IP Logged

less hardener dude should do that when your done your first layer

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ckeeler

Gold - Posts: 1,461

Joined: June 20, 2008

Location: New Mexico, United States

Posted: April 22, 2009 at 10:40 AM / IP Logged

waaayyyy too much MEKP there. back it off a little. the ambient air temp is also important as well. i.e your gonna use alot less MEKP in the summer than you would in the winter.

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bellsracer

Silver - Posts: 703

Joined: January 14, 2006

Location: United States

Posted: May 07, 2009 at 4:17 PM / IP Logged

o_____o

Ease off the hardener... Just a lottle

If it is from Bondo, then there will be some basic instructions for how much to use. They also like to mark their hardeners with the relative amount needed for the job. ie Half the can is used, use half the hardener. But I do not recommend mixing more than a quart at any time. To be honest I do 1/2 quart mixes at most at a time. I would rather mix many smaller amounts that get fully used rather than mixing a larger batch and not being able to use some (or a lot) of it.

Ganbatte ne!

Never send your ducks to eagle school.

The difference between ordinary and extraordinary is that little extra.

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mixing polyester resin with hardener

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