PolyCast™ (PVB)

PolyCast™ is a filament designed to produce investment patterns for investment casting applications. 3D printing significantly cuts down both the cost and lead time by eliminating the tooling process.

Parameter
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.

Printing Profiles

Documents

TDS

SDS

Other Docs