Polymaker PolyCast Natural

The first filament for metal casting


($64.38 / kg, All prices excl. VAT. - Excludes delivery costs)

Diameter: 1.75 mm / 750 g

Delivery by Tuesday, 03 October if you order today by 13:00.

In stock

Features & Advantages

  • Specially developed for investment casting
  • Burns without residue
  • Easy to print

Item no.: PM-PJ03001, Content: 750 g, EAN: 6938936710936

Product information & technical details

  • Item no.: PM-PJ03001
  • Manufacturer No.: PJ03001
  • Manufacturers: Polymaker
  • Content: 750 g
  • Diameter: 1,75 mm, 2,85 mm
  • Product types: Castable filament
  • Filament colour: Natural
  • Net weight: 750 g, 3000 g
  • Recommended processing temperature: 190 - 220 °C
  • Recommended heating temperature: 25 - 70 °C

What is PolyCast ™ used for?

PolyCast ™ has been specially developed for investment casting (also known as lost wax casting) of metal.

What advantages does PolyCast ™ offer for investment casting?

For traditional investment casting, you must first make a metal tool to create wax patterns. The processing usually takes several weeks, the costs are very high. Using 3D printing with PolyCast ™ eliminates the need for these tools.

Another advantage of PolyCast ™ is that you can use 3D printing to create complex geometries that are simply impossible with tools.

In summary, PolyCast is ideal for:

  • Rapid production of small volume metal parts
  • Metal parts with complex geometries

How is PolyCast ™ different from other 3D printed filaments?

PolyCast ™ is the first 3D print filament specifically designed for metal investment casting. To enable this application, we have designed the material to have two main functions:

Superior surface quality
PolyCast ™ can be polished in Polysher ™ (using Polymaker's patented Micro-Droplet Polishing ™ technology), eliminating layers and creating a very smooth part surface. This is crucial for the quality of the metal parts.

Clean burnout
Most polymers leave residues when they decompose - this is a problem during investment casting and can lead to defects in the metal parts. Polymaker has designed the material to completely decompose and provide a clean mold for casting.

Is PolyCast ™ easy to use?

Using PolyCast ™ is easy. It prints under typical PLA conditions and is compatible with almost any filament-based 3D printer. Polymaker has developed the material to provide excellent printability, dimensional stability and easy removal of the support material.

The printed parts can then be polished in Polysher ™ to significantly improve surface quality. After polishing, the part is ready for use in precision casting.

Filament spool dimensions
Product videos:

Questions & Answers about Polymaker PolyCast Natural

Receive answers from other customers who purchased this product. Please forward any other order-related questions to our Customer Service Team.

  • Are there any UK foundries that already accept this for investment casting? I'm trying to print a small batch of components for casting but so far no one is accepting this material

    This question has not been answered yet.

  • Can the filament be melted with steam? I won’t need it to be 100% removed-but if I could remove half of it, that would work-this is for a new product idea not investment casting.

    1 Answer, last answered on January 10 2023

Customer Reviews

2 English reviews written for Polymaker PolyCast Natural

4 customer reviews in all languages

4,7 out of 5 stars
5 stars
6 (66%)
4 stars
3 (33%)
3 stars
0 (0%)
2 stars
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1 Stars
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9 reviews
2 customer reviews in English
4 customer reviews in all languages

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