Hey.
I set off a little batch of RR epoxy for fin boxes. I overestimated the quantity required so I just put excess in the freezer.
Next day I kinda semi thawed it out to fill in a tiny hole next to the plug…
Is there a limit to the number of times I can freeze and thaw out the epoxy.
Brian
I’ve thought about doing it, as I always have some left over when doing repairs, I didn’t wont to risk it though.
I think thats basically how prepreg works.
I’ve done it with brushes though and I can use them 2 or 3 times before chucking them.
When I have a bit left over, I sometimes wet out 10" squares of cloth on wax paper, roll 'em up, into plastic bags, and into the freezer they go. Homemade prepregs for ding repair or glassing on fins without mixing any new epoxy. I have some that have been in there a year at this point…I’m sure they’re still good. I give them a squeeze every now & then to make sure nothing’s solid & so far, so good.
Make them while you can - you get better at estimating how much to mix up pretty fast. Waste is a non-issue at this point.
I keep a little note book of all the weights or volumes of resin I use.
It’s amazing how easily I forget how much to use when setting a type of fin box I havn’t done for a while!
It makes the whole process much more relaxing too, knowing exactly what is needed.
I always stress i’ll have too little mixed up, that can be a hassle, especially when tinting fin box resin different colours, it’s hard to match it if you have to add more to top one of them up.
Write down any things that you though you should do differently, or things to remember in there as well.
So efficient, and best of all, it saves ya money!
More to spend of beer, yay!!
But thats a very good trick, freezing the fin box left overs.
I still have problems getting all the air bubbles out, so having some resin ready to go thats the right colour the next day is sweet.
Nice one.
Kit
I used to freeze the brushes I used, (Roy’s idea)…
I found that the freezing only slowed the cure process…
It picks up from where it left off in the curing…
IE: 4 hour set time, use brush for 1 hour, still only 3 hours life left in it…
Use it again under the same conditions, new epoxy batch, old epoxy on the brush, thawed out…
Eventually you get a fully cured brush…