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[Video] Large Scale Mold Making - Making the Negative "Tool"

Step 10Clean Up

Clean Up
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This took about 10-12 hours of work. Mind you, actual layup of resin/glass happened in less than an hour. So theoretically, you could take a finished plug and have half of your cast cuing in a day. But believe me, it's grueling. What you see here was broken up over two days (one day working 2-4 hours, the other 8).

Tomorrow (next step) we continue!

Clean up is simple.
Your spray gun can be cleaned with water - and then a little acetone to displace the water (we don't want rust). Water is fine as PVA is water soluble (ethanol is a polar substance ;) ).

Cleaning of brushes and other tools is done with acetone. Wash in a bucket - then pour off the acetone into a flash pan (a pan with large surface area to promote evaporation) OR dispose of at your local hazardous waste collection facility.


Interestingly, our plug got hot... HOT. Too hot to touch in fact which can cause problems if your foam can't handle it. It can also lead to shrinkage problems later. So for tomorrow, we know to mix a little less. That's just how these things work when you're using a new type of resin - even a different brand ;)
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Author:trebuchet03
I'm an Engineer in San Francisco. Mass producer. Former Intern. Rapid Prototyper. Sometimes, I post Instructables. My Favorite number: 42 By profession - I am an energy engineer. I count electrons p...
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