
Copper-filled Metal Composite HTPLA
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Quick answers
- What do buyers say about the Copper-filled Metal Composite HTPLA?
- Rated 4.7 out of 5 from 60 ratings. Buyers like: Prints easily, comparable to glow-in-the-dark filament; Finishing and oxidizing process is easy and rewarding; Looks like terracotta off the bed but shines like a penny after sanding. Common complaints: Very weak and brittle; snaps between layer lines; Requires extensive tweaking of recommended print settings.
From Protoplant, makers of Protopasta
- Real copper powder-filled HTPLA filament that prints like plastic and finishes like real metal
- Can be polished to a bright mirror finish or given a rustic patina like aged copper
- Heat treatable to hold shape up to near melting (175C)
- Now available in 1kg size
- Flow optimized with less moisture uptake than standard PLAs
- Not electrically conductive, but noticeably heavier with better heat transfer
- Sizes
- 1.75mm / 100g Coil, 1.75mm / 500g Spool
- Materials
- Base resin: HTPLA - Heat Treatable PLA; Additive: Real Copper Powder; Particle size less than 250 micron (0.25mm)
- Sizing
- Recommended nozzle diameter 0.6mm or larger preferred, 0.4mm okay with 0.25mm minimum for experts; layer thickness 0.15-0.20mm recommended
- Care
- Heat treat at 110C (225F) for 10 min or as required; preserve finish with a clear water-based coating like Mod Podge
- Returns
- Returns and replacements accepted at ProtoPlant's discretion within 90 days of purchase; only sealed product can be returned; customer pays shipping for exchang
- Shipping
- Domestic shipping within the United States via UPS, including free shipping on qualifying orders; international shipping via DHL Express
- Packs
- Available in 100g Coil, 500g Spool and 1kg Spool
- In the box
- Copper-filled Metal Composite HTPLA spool
About the Copper-filled Metal Composite HTPLA
Now available in 1kg size.
Introducing Copper-Filled Metal Composite HTPLA. Using real copper powder, we've created a premium heat treatable metal PLA filament for 3D prints that finish just like real metal! Our copper composite filament is as versatile as it is beautiful, printing like plastic, but finishing like real metal for beautiful, durable parts from most standard 3D printers.
Whether you want your prints to be polished with the same bright mirror finish of shiny copper coins or a naturally rustic finish with an acquired patina reminiscent of an aged copper sculpture, the possibilities are endless with this specialty metal PLA filament. With so many finishing options, the sky is the limit!
Scroll down or click the link below for more product specific details, finishing options, and application ideas for Copper -Filled Metal Composite HTPLA.







