Mixing Siraya Tech Cast True Blue and Purple for stunning Casting

At Siraya Tech, we are always thrilled to see how our customers use our products to create stunning and high-quality prints.

Today, we’re excited to share a new Castable Resin printing and a detailed process from one of our users, David Bordman, who successfully cast a beautiful Signet Rock Ring in Sterling Silver by mixing Siraya Tech Cast Trye Blue and Purple Resin.

Materials and Equipment

Resin: A 50/50 mix of Siraya Cast True Blue and Purple Resin
3D Printer: Phrozen Sonic Mini 8K

Investment: Prestige Optima

Cleaning Agent: Methyl hydrate / 95% alcohol is also suitable
Curing Agent: Glycerin (Soaking the printed parts in glycerin to cure helps prevent moisture absorption.)
Flask Sizes: 2.5x4 or 3x4 (solid)

Process

1. Printing:
David printed the design using a Sonic Mini 8K printer and a 50/50 mix of Siraya Cast True Blue and Purple Resin.

This combination provided reliable and detailed results, with the Purple Resin being more forgiving and the True Blue Resin ensuring a great burnout.

50:50 Cast True Blue and Cast Purple Print settings for Phrozen Sonic Mini 8k can refer to the figure below:

2. Cleaning:

(1) David cleaned his prints with methyl hydrate, a highly effective cleaning agent that prepares the prints for curing.

(2) You can also use the usual 95% alcohol for cleaning.

Make sure to blow dry the Cast Resin print completely after cleaning, as moisture will affect the casting.

Tip: If you find that your print is sweating after curing, then discard the print. This happens when you don’t fully dry the print after cleaning, or when you let the print dry on its own. Re-drying and curing is not a good idea for castings.

3. Curing:

For curing, David placed small prints in glycerin for at least 15 minutes and large prints for 30-60 minutes.

After curing in glycerin, Rinse the glycerin off with hot water and a little dish soap, ensuring all suds are gone before giving a final rinse with cold water.

You can also use regular 95% alcohol for cleaning.

Make sure to dry/blow dry your prints after using water and cleaning. Moisture can affect your castings!

4. Investment Ratio:

David used a mix ratio of 38-100 for the investment and allowed it to sit for a minimum of 1 hour and a maximum of 3 hours.

This ensures the investment is properly set before the burnout process.

5. Burnout:

After printing, David proceeded with a 5-hour burnout using Prestige Optima investment. This involved a full ramp on all stages of the burnout process.

David said: The results were spectacular, as Prestige Optima investment rarely fails to impress.

Here is the recommended burning schedule from David Boardman

Tips from David (Extremely important!):

• Cleaning and Curing: Proper cleaning and curing of the prints are essential steps that should not be rushed.
• Each step is vital to the process, and using high-quality materials and equipment makes a significant difference in the final outcome.

Next up are some amazing casting photos from David!

Happy and success Casting for everyone!

Where can find the original version of this blog?

Click here to read the original version from David Boardman