Quoted from vid1900:Blow off any sanding dust and then clean out the insert and the surrounding area with Naphtha. Once you clean it with Naphtha, don't get any oily fingerprints or dust near the insert.
Put your respirator on and find a glass substrate to mix the 2PAC on. You can use an upside down pickle jar.
Using 2 different glass eyedroppers, drip the correct ratio of Clear & Hardener onto the mixing surface.
Remember not to get even a single drop of hardener into the can of clear, or the whole can of clear will become a cube of plastic in a month. This is why we use 2 different eye droppers.
Depending on how many inserts you have to fill, you need to mix up your clear, by counting drops. Each insert might need 12 drops of clear, so your ratio might be 10 drops clear : 5 drops hardener.
Use the fastest curing hardener you can for this. The faster it cures, the less chance of any outgassing from the insert (more on this latter).
Mix up the clear and then let it sit for 5 minutes to allow any bubbles to dissipate.
Draw the clear up into an eyedropper without creating any bubbles.
"Draw" around the edge of the insert with the clear, so as you fill it, the clear will climb to the very top edge.
Overfill the insert slightly, it will get sanded flush.
Suck out, or drag out any air bubbles with the eyedropper.
You can fill in the valley between the inserts and the playfield with this same technique.
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Once the 2PAC had hardened, you can then sand it flat with the rest of the playfield.
Can I use mineral spirits instead of naphtha?
Can I use plastic syringes instead of glass eyedroppers for the 2PAC?
Thanks.
Walnut Creek, CA
