[Video] Part Making

Step 4 Begin Layup - GelCoat

Start by mixing a "gelcoat" using the very same Cabosil (fumed silica) and epoxy resin.

1. Add desired amount of resin to a pot
2. Mix in Cabosil until it holds peaks
3. Add epoxy hardener

Apply gently with a brush. Remember, once you add hardener - the clock is ticking. You need to go from mixed to bagged ASAP.

The resin/silica is thixotropic - that is, when you apply pressure to it, it becomes thinner and easier to spread. This coating will provide a glass smooth like finish (assuming your tool is smooth too).

Once your coat is down -- apply a coat of regular resin.