Hi PTXman I am happy with the results that I get I was just answering a question .The resin I use is Ceiba or Araldite LC3600 and LC3600 hardener there are other hardeners available allthough the reps over here dont really like to sell just the hardener by its self and really I find haveing lots of different hardeners a pain .I use this resin for every thing I do molding wings,tails and fuslage layups both glass only and balsa composite.
The resin at about 25deg C is about the same thinkness as milk maybe a touch thick so a thiner resin would be pretty much useless the temperature range I use it in is from 10deg C winter to 34deg C summer they are the coldest and hotest temps that I have used it in my workshop.
When I said the resin thickens quicker when it is cold it is not going off it just seems to thicken so the working pot life dosnt really change just the thinker resin in cold temps is harder to work.I suspect the mixing action to start with and holding the mixing cup in a warm hand makes it it normal viscosity to start with ,I still get about 45 mins before it looks like being a pain.
I dont have any trouble with air in the resin with how thin it is once it is mixed I can leave it for 5 mins and 98% of the bubbles are on the surface and bruching the top gets rid of them all.
One other thing with this resin is it must be post cured at a minimum of 30deg C for 24 hours so I normally go to around 50deg for 10 . I am more than happy with the results I get but as I make kits I have to watch the amount of time it takes to ensure I still make money as I make them as a hobby to pay for my own model aircraft addiction.
While I know there are many different methods to make parts lighter and stronger many of which I have tried if I can make a part simply that I and customers are very happy with I will go the simple route which I often find is also the most reliable for a home workshop.But thank you very much for your replys and ideas as they are all put into the memory bank for when a problem does arrise they may be usefull.
Terry