Bronze-filled Metal Composite HTPLA

Bronze Metal-Filled PLA Filament

$6.00 USD
HTPC1705-BRO

Introducing Bronze-Filled Metal Composite HTPLA . Using real bronze powder, we've created a premium heat treatable metal PLA filament for 3D prints that finish just like real metal! Our bronze 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 bronze coins or a naturally rustic finish with an acquired patina reminiscent of an aged bronze 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 Bronze-Filled Metal Composite HTPLA.

More product details

Technical Data Sheets

All of our products have material technical data sheets available for download here

Safety Data Sheets

All of our products have safety data sheets available for download here.

Shipping

We provide a number of domestic shipping options within the United States via UPS, including free shipping on orders of $50 or more. We also provide international shipping via DHL Express.

Returns

At ProtoPlant's discretion, returns and replacements will be accepted within 90 days of purchase.  Please check the material label before opening your product.  Only sealed product can be returned. Shipping of items for exchange or refund is paid by the customer. More information about returns and replacements can be found in our terms and conditions



Brick or cast bronze? Brush, polish, or patina and enjoy!

Introducing Bronze-Filled Metal Composite HTPLA. Using real bronze powder, we've created a premium heat treatable metal PLA filament for 3D prints that finish just like real metal! Our bronze 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.

 

Finishing Techniques

Whether you want your prints to be polished with the same bright mirror finish of shiny bronze coins or a naturally rustic finish with an acquired patina reminiscent of an aged bronze sculpture, the possibilities are endless with this specialty metal PLA filament. With so many finishing options, the sky is the limit! Here are just a few common finishing techniques for metal composite filaments you might want to try:

  • Heat treat your HTPLA print to survive harsher environments like the hot sun or a warm polishing wheel (more details below)
  • Wire Brush to expose metal for future oxidation or a bright, satin finish
  • Rock tumble with steel shot for darker, but smooth, shiny look
  • Paint part (black for example) to fill recesses with a contrasting color
  • Polish with a rotary tool, cotton buff, and polishing compound for a bright, mirror finish on high spots (darkens low spots)
  • Polish with paper for a clean, smooth, and bright finish with less darkening
  • Patina (oxidize) exposed metal naturally or accelerate with a 50/50 vinegar/hydrogen peroxide mixture saturated with salt. Place in sealed plastic bag to retain moisture. Heat further accelerates reaction.
Try these techniques separately or combine! Change the order or try something new. If you discover a new technique, make something beautiful, or discover something unexpected, share it! When you've got that perfect, WOW finish, consider preserving it with a clear coat or brush applicable water-based, food-safe, and dishwasher safe coating like Modge Podge. Practice your finishing a on a test piece like Protognome (download here).

Now the only question is, "What will you make?"

Heat Treating & Applications

Heat treating beforehand to firm up HTPLA helps parts hold shape up to near melting (175C). Protect your investment in warm environments or push limits of application by exploring copper's thermal conductivity. There is not enough copper to be electrically conductive, sintered, or plated, but there is a noticeable difference in weight and heat transfer.

Some application ideas include:
  • Faux brick or stone
  • Fixtures or hardware
  • Knobs or buttons
  • Heat sinks or exchangers
  • Fine art & sculpture
  • Emblems, signage, or trophies
  • Jewelry, like pendants or bracelets
  • Cosplay, game pieces, or figurines

Material Data

  • Base resin: HTPLA - Heat Treatable PLA
  • Additive: Real Bronze Powder
  • Particle size: less than 250 micron (0.25mm)
  • Odor: low or no
  • Density: Approx. 2.30 g/cc
  • Length (500g): 97m (1.75mm) and 36m (2.85mm)
  • Heat treating: 110C (225F) for 10 min or as required for desired result
  • Total loss of stiffness (before heat treat): 50-60C (Tg)
  • Total loss of stiffness (after heat treat): 150-175C (melting)
  • Dimension change (before heat treat): 0% X/Y/Z
  • Dimension change (after heat treat): 1.5% shrink X/Y and 1% growth Z typical but please calculate and confirm for your specific print and process

Printer Settings

  • Speed: 10-20 mm/s 1st layer, 20-80 mm/s rest of part
  • Nozzle Set-point: 185-215C (hottest on 1st layer for best adhesion)
  • Nozzle Actual: maintain set-point, reduce speed if less than
  • Nozzle Type: Standard or wear resistant for extended use
  • Nozzle Diameter: 0.6mm or larger preferred, 0.4mm okay with 0.25mm minimum for experts
  • Layer thickness: 0.15-0.20mm recommended for a balance of quality, reliability, and productivity
  • Bed Temperature: Room-60C (over 60C can worsen warp)
  • Bed Preparation: Elmers purple disappearing glue stick or your other favorite PLA surface preparation

This material has been flow optimized and has less moisture uptake than standard PLAs, however composites are still sometimes more tricky to print depending on hardware and software settings. The main challenge is to keep mass flow up (larger nozzle + fast speed) and in a single direction (minimal retraction) to avoid heat soak. More on that topic here.

Customer Reviews
5.0 Based on 3 Reviews
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Filter Reviews:
JP
11/15/2020
Jason P.
United States United States
LOVE this HTPLA!

Prints flawless and finishes amazing with some simple sanding.

ProtoPlant, makers of Proto-pasta Bronze-filled Metal Composite HTPLA Review
TH
10/02/2019
Timothy H.
United States United States
Best metal fill around

Fantastic metal fill to use. Proto pasta has the highest metal fill percentage. If you have an all metal hot end, make sure to run at 230-245c but test it.

ProtoPlant, makers of Proto-pasta Bronze-filled Metal Composite HTPLA Review
AD
04/23/2019
Arthur D.
United States
BronzeFill is NICE

I just got a sample and have only printed a couple things but I'm impressed so far. The filament prints well with basic default settings. The items are pretty hefty, as expected for the metal content and the polishing is quick and looks great. I'm going to try getting a quick patina on one - I think it's going to look very cool. If you're not sure if you'll like this filament, get the sample - the 50g coil is plenty to try it out! I wish they had a pewter filled filament so I could make some lids for some old family steins.

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