PolyCast™ (PVB)
Specialized for Investment Casting PolyCast™ is a filament engineered specifically for producing investment patterns used in investment casting applications, streamlining the traditional casting workflow.
Cost and Time Efficiency By enabling direct 3D printing of casting patterns, PolyCast™ eliminates the need for expensive and time-consuming tooling processes. This significantly reduces both production costs and lead times.
Ideal for Foundries and Custom Manufacturing Choose PolyCast™ for rapid, accurate, and efficient production of investment casting patterns - perfect for foundries, jewelry making, and custom manufacturing projects.
Nozzle temperature
190 – 220 (℃)
Build surface treatment
PC and Texture PEI (Glue when needed)
Build plate temperature
25 - 70 (˚C)
Cooling fan
ON
Printing speed
50 - 200 (mm/s)
Retraction distance
1 - 3 (mm)
Retraction speed
20 - 40 (mm/s)
Closure Chamber
No Needed
Recommended support material
PolyDissolve™ S1
Drying setting
50˚C for 12h
Print Tips
This mateiral is a PVB material and does not need any special printer requirements to print.
Print slower than standard PLA. Recommended top Max Volumetric Speed of 15mm^3/s.
Increase printing temperature to 220˚C if printing at this fast 15mm^3/s.
Keep fan speed on at full blast for best surface quality. Reduce if noticing any layer adhesion issues.
The burnout temperature for our PolyCast is 1,100 - 1,200˚C to entirely burnout.
You can find more information on this on page 7 of our application notes for this material: https://cdn.shopify.com/s/files/1/0548/7299/7945/files/PolyCast_Application_Note_V1.pdf?v=1640965091
Video to help if you are unable to reach 1,100˚C https://www.youtube.com/watch?v=QeNMc_THrow
FAQ
How do you use PolyCast™?
You can download our Application Notes
What makes PolyCast™ unique?
PolyCast™ features two unique technologies: Layer-Free™: PolyCast™ can be easily smoothed with IPA for a smoother surface finish which is reflected on the casted model. Ash-Free™: PolyCast™ burns out very cleanly with minimum ash residues.
Will the spools work in an AMS?
Yes! We have redesigned the edges of our spools so all Polymaker products will now spin great in the AMS.
What coating or plaster is best to pair with PolyCast for investment casting?
For investment casting with PolyCast filament, the choice of ceramic coating can depend on the type of metal being cast and the desired surface finish. Common options include:
Silica-Based Coatings: Widely used and generally compatible with various metals.
Zircon-Based Coatings: Often preferred for high-temperature applications as they provide better thermal shock resistance.
Can I burnout Polycast lower than 1,100˚C?
The burnout temperature for our PolyCast is 1,100 - 1,200C to entirely burnout. You can find more information on this on page 7 of our application notes for this material: https://cdn.shopify.com/s/files/1/0548/7299/7945/files/PolyCast_Application_Note_V1.pdf?v=1640965091
There is another individual though - a YouTuber - who pretty much exclusively uses PolyCast - Press Tube. He uses a kiln that cannot reach those temperatures and gets the PolyCast to work. Here is a link to a video of his where he goes over how he gets it to work while not being able to reach that temperature:https://www.youtube.com/watch?v=QeNMc_THrow
He just needed to do the burn for a much longer amount of time, but you can check that video for his tips.
How do I combine two PolyCast or PolySmooth PVB prints together?
To combine two PolyCast parts: Alcohol, such as isopropyl alcohol. Iit is a good solvent for PVB, which is dissolved into liquid then bonded through two halves, and then the solvent evaporates into a solid.
Printing Requirements
None! This will print great on any stock 3D printer!
You will just want to print slower on stock, older style printers.
Documents
Last updated
Was this helpful?