Castable 2 Investment and Burnout Instructions

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SprintRay’s Castable 2 resin allows you to rapidly print models to use for investment casting. This material is easy to work with and leaves behind no residue after the burnout process.
 

Handling and Printing with Castable 2

Because Castable 2 is a ceramic nanohybrid resin, it contains fillers that are abrasive which can be harmful to your printer if handled improperly. When printing with Castable 2, mix the bottle very thoroughly before pouring into the resin tank and follow standard procedure for printing.

Post-processing

When your print is complete, remove the build platform from the printer. Using a paper towel, dab excess resin from the printed models. Remove the model from the build platform but do not soak the model in an alcohol bath. Using a spray bottle, rinse the part with alcohol or swirl the model around in an alcohol bath for no more than ten seconds.

Use compressed air to blow excess resin from cracks and crevices. Post-cure using Pro Cure's preprogrammed settings for Castable 2 resin or consult IFU documentation for curing times for other curing units. 

Investment and Burnout Instructions

Castable 2 is designed for casting gypsum and phosphate-bonded investments, the latter of which we find to be best for dental applications. Whichever you choose, it's important to follow the manufacturer's instructions when preparing the investment mixing ratios and allow proper full bench-set time. 

Note: Because there is no liquid wax to flow out, we recommend keeping the flask horizontal in the center of the furnace rather than vertical.

Gypsum Investment Instructions

For gypsum investment, preheat the furnace to 700C, then place the investment into the furnace. Ramp up the temperature to 850C and hold this temperature for one hour per 100G investment. Once the hold is finished, allow the furnace to cool back down to 700C before removing the investment. 

Phosphate-Bonded Investment

For phosphate-bonded investment, preheat the furnace to 800C, then place the investment into the furnace. Ramp up the temperature to 950C and hold for one hour for the first 100G of investment and +30 minutes for each additional 100G of investment. Once the hold is finished, allow the furnace to cool back down to 800C before removing investment. 

We can help with that!

If you're experiencing difficulties or have questions about any of your SprintRay products, submit a support ticket or contact us at 800-914-8004

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