PolyCast™: Precision Filament for Investment Casting
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.
Printing Requirements
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Excellent 3D printing filament designed for investment casting. Customers said it "burned out completely" and "leaves no/little ash" during lost-wax casting. Prints well with PLA-like settings and provides good detail reproduction. Note: absorbs moisture quickly, requiring a filament dryer. Some occasional ash remains in thick sections. "Revolutionized our investment casting process."
I love using to create my glass castings. I have 14 0rders on my Amazon account alone of two rolls or more each time. Works incredible for my process!!
Last year I bought 2 polycast filaments, everything was great, shipment arrived at the according time frame but the issue was that one of the filaments was a Polymax PLA (which is cheaper than the polycast). We couldn't make a refund request since we didn't realize this after like 2 months of buying it because it was a buy for just testing the polycast material so we didn't open the box until two months later.Other than that the material is an amazing quality and it completely reached our expectations. I just hope that now that we are buying more everything arrives as expected.
Worked fine. Printed like PLA and burned out like wax. Couldn't ask for more.
PolyCast is an excellent synthetic investment casting wax filament that can be 3D printed. Detail reproduction is good for most applications. Casters report that for thick section parts some ash occasionally remains otherwise they say it integrates well into their investment process. Alcohol sealing often smooths or rounds the edges of details.
It prints well at .10 on my Prusa Mk3. I will warn you that it absorbs moisture very quickly. If you don't have a filament dryer you will not will have unusable filament by the third print.
This PLA leaves no/little ash or remains during lost PLA casting. I tried to get creative and use this with a brass pour on top of the PLA without melting it out beforehand, just to see what would happen. The PLA material remained and only the top had been melted. Don't judge, I was curious.
As the founder and lead creative force behind a company that prides itself on innovative jewelry design, 3D modeling, and a host of crafting techniques, I'm constantly in search of materials that not only meet but exceed our high standards. It's with great enthusiasm that I share my experience with Polymaker PolyCast Filament, a product that has truly revolutionized our approach to investment casting and beyond.The PolyCast Filament is designed specifically for investment casting, and its performance has been nothing short of transformative. The precision it allows in 3D printing models is unparalleled, providing the perfect foundation for our lost wax and sand casting processes. This filament has enabled us to produce intricate designs with a level of detail that was previously unattainable, enhancing the quality of our final products significantly.One of the most remarkable features of the PolyCast Filament is its ash-free burnout, which is critical for a flawless casting process. This property ensures that the residue does not interfere with the mold, resulting in clean, detailed casts every time. The reliability and consistency of the results have not only streamlined our production process but also increased our capacity for innovation and experimentation.Additionally, the environmental consideration in the product's packaging, with its cardboard spool, aligns perfectly with our company's commitment to sustainability. It's a detail that might be overlooked by others, but for us, it signifies Polymaker's dedication to reducing plastic waste, a principle we deeply appreciate and support.Integrating the PolyCast Filament into our workflow has opened new avenues for creativity and efficiency. Its impact is evident in the enhanced quality of our jewelry pieces and custom designs, drawing praise from clients and viewers alike. As a vlogger and streamer, sharing my experiences and processes using this filament has engaged my audience more deeply, showcasing the potential of combining traditional craftsmanship with modern technology.In summary, the Polymaker PolyCast Filament has not just met our needs; it has exceeded them, becoming an invaluable asset to our creative toolbox. It has elevated our casting processes, allowed for greater creative expression, and reinforced our commitment to environmental responsibility. For any professional in the fields of jewelry making, 3D design, or crafting, I cannot recommend this filament highly enough. It's not just a material; it's a catalyst for innovation and excellence.
It took longer than expected but did burn out completely from my plaster mold. Printed fine with settings shown in spool.
Works great
Product is as advertised. Have not used it in casting yet. But works well on the printer
Amazing filament.
This product burned out 100% it looks like. Other Poly products like polymax and polysmooth will print so much better. But these other polys will not burn clean for casting. Polycast will burn clean. You will get ash from the others. I have used at least 10 rolls and getting the settings right is still an ongoing process. I am now using 60 degrees C, for the bed and after 5 layers going up to 75. this will keep the part stuck. When the bed cools off the part will break off. Prints well enough to get a good looking casting. You can sand the part to get lines out. Put it in polisher for a smooth finish. Using the prints for lost wax casting. If you are using for silicon casting or epoxy cast maybe use a better printing product like polymax. REX
What is the recommended process for dewaxing? My test piece formed a viscous glue-like state rather than a liquidous state found in microcrystalline wax. It was difficult to remove before burnout.
PolyCast does not have a separate dewaxing step documented. It is a PVB pattern material with 0% wax content, so it won’t behave like microcrystalline wax. The recommended process is to burn it out directly.
Use this guidance:
- Burnout temperature: 1,100–1,200°C for complete burnout
- If your kiln cannot reach that range, the documented workaround is a much longer burn cycle
- If you dissolve supports or introduce moisture, dry the pattern first and consider more shell layers, since internal moisture can increase shell cracking during burnout
The glue-like or viscous state you saw is consistent with PolyCast’s behavior. It is not documented to liquefy like wax before burnout.
Hi, can this be used with a 3d filament pen? Thank u
Hi there, 1.75mm filament should work with a 3D filament pen! Just make sure you use the correct temperature for the filament listed on the spool!
