Bach-RCU

When I make my fuse I usually brush coloured epoxy into the mold first, then wait about 1 1/2 hour until it is just slightly tacky and them apply first layer of the cloth.
However each time I see the epoxy is running into dependent areas leaving less on vertical parts and making puddles at the bottom.
Is there a good way to prevent this ?
To thicken the epoxy by microballons ?

Petr

MikeyD

Petr
Do you use any Cabosil, or silica? This is a white powder mixed with your resin. It is designed to slow running epoxy

Mikey D

Bach-RCU

I used microballons more than aerosil. If you mix it too thick, then it tends to form small bubles, if it is too thin, then it runs.
I tried to tilt the molds every 15 mins, so it disperses more evenly.
Not very bright solution, but do not have other ideas.

Petr

dsBeliever

If you're trying to thicken the epoxy you should be using Cabosil or Aerosil (fumed silica). Microballoons is not an epoxy thickener, it's an epoxy extender. Basically it takes up a lot of space and weighs virtually nothing. But it won't thicken the epoxy.

Bach-RCU

Thanks dsbeliever,

I'll try

PB

FLYBOY

My Feedback: (11)

You can get cabosil at aircraft Spruce. It is pretty cheap. Give it a try.