Well, just now I was going through checking my
resin/hardner (part A, and part B) supply.
I still have my 28oz kit... I bought
them together almost three years ago.
It's the Alumilite brand.
Now the bad news: the hardner (part B) has thickened to a
jelly-like consistency, while the resin (part A) is still
I poured a text mix using equal parts of each, into
a plastic container lid and stirred the mix for the required
40-sec time frame, and then waited for it to cure.
It's taking much longer to cure, and not thoroughly as
some portions remain jelled.
I tried another pouring, this time into a smaller plastic lid.
For this test I filled the lid 2/3rds of the way with the
hardener (part B) and added just 20 drops of the resin (part A).
This one is curing very slowly, so I set it by my baseboard heater
to help speed up the curing process.
I will leave both items to cure overnight.
The lesson of this comment is this:
When planning a casting project, buy ONLY the amount of
resin/hardener you will need for the project; and you should
have to use all the material for the project as much as possible,
or have other projects ready for casting.
My first mistake was buying a large kit with the 16oz
Part A and Part B stuff, thinking I could make it last for
future castings... well, it's been three years since
I last used the kit and the bottles were just half-full.
So, now the remaining half amount of materials in the bottles
are partially hardened or have gone bad.
These resin cast kits were designed for frequent use per project.
Your project will determine whether you need 8 ounces or 16
ounces of the materials.
Be prepared to use Most of the material as possible so that
you can get your mileage and money's worth out of it.
So then, it's better to Save money by running out of material
in the middle of a casting project-- rather than buy a large quantity
of material just to have leftover unused material sitting
in the closet for weeks, months, even Years!
Now, I'll have to buy fresh new casting material at full price...
...as soon as I am ready with my project.
The resin (part A) and the hardener (part B) cannot be sold
separately, they must be bought together because of their
mix ratio requirement. The 1:1 mix ratio is easiest for me, that's
why I buy the Alumilite brand.
I wish A and B were sold separately, so that I can control my inventory
from "dry-rot" and manage the shelf-life of these chemicals.
But, unfortunately, I have to buy parts A and B together.
In my current financial state, a $35 resin casting kit
is no easy beans. lol