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[Video] Mixing Polyester Resin

Step 4Mixing - With Fillers

Mixing - With Fillers
Sometimes, it is beneficial to add a filler/thickening agent. Types of thickening agents and their uses are beyond the scope of this instructable - but in general, mixing them into your resin is the same process.

1. Measure out how much resin you need.
2. Add a small amount of filler
3. Mix in well
4. Repeat steps 2-4 until the desired amount has been added OR until you reach your desired viscosity
5. Add a measured amount of catalyst (as per the resin requirements).

Remember, adding fillers can increase the amount of heat generated due to the internal friction of the resin mixture - be aware of this as it may play a role in your pot life (how long it takes before the resin starts heating up/curing).
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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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