Steel-filled Metal Composite PLA

Steel Metal-Filled PLA Filament

$12.00 USD

SSP11701

Protopasta Stainless Steel PLA filament is a dense material that prints as easily as standard PLA but results in heavy cast metal looking prints that can be brushed, sanded, or polished post-print to achieve amazing results. Using real steel powder, this premium, metal-filled steel PLA filament is perfect for jewelry, costumes, props, figurines, crafting, robots, or any other 3D prints needing a truly stainless steel finish.

More product details

 

Technical Data Sheets

Technical data sheets available for download here

Safety Data Sheets

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



Prop 65: This product contains a chemical, Nickel powder, which is known to the State of CA to cause cancer.

Prints like plastic, polishes like stainless steel!

Introducing Stainless Steel-Filled Metal Composite PLA. Using real steel powder, we've created a premium metal PLA filament for 3D prints that finish just like real stainless steel! Our steel 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.

We suggest experimenting with polishing using this starter kit (includes instructional videos).

**This filament is more abrasive than standard PLA. Be prepared to replace your nozzle and do 1st layer adjustment. Try a wear resistant and/or larger diameter nozzle for increased service intervals.

  • Available in 1.75 & 2.85 (3) mm diameters.
  • 125g are loose coils, 500g is on a 8" diameter spool, 2kg is on a 12" diameter spool.
  • Usable on most PLA-compatible printers, such as Lulzbot, Makerbot, FlashForge, Dremel, Ultimaker, Printrbot, and more!
In filament form, SSPLA is slightly more brittle than standard PLA, and requires extra care when handling. Processing is comparable to standard PLA. No heated bed required. Process may be less consistent on smaller nozzles and/or bowden type machines, We frequently print using direct-drive systems with 0.4mm nozzles, though suggest 0.6mm and 210-230C for the best experience.

 

Finishing Techniques

Whether you want your prints to be polished with the same bright mirror finish of shiny steel coins or a naturally rustic finish with an acquired patina reminiscent of an aged steel 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:


  • 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?"

Applications

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: PLA
  • Additive: Real Steel 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)

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
4.3 Based on 52 Reviews
5 ★
65% 
34
4 ★
17% 
9
3 ★
6% 
3
2 ★
4% 
2
1 ★
8% 
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Customer Photos
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Filter Reviews:
K
04/11/2024
Kurt
United States United States
I recommend this product

Solid

I love the weight and density, fast shipping. I havent polished yet but about to try with a dremel. I ordered a .2mm nozzle because i need more precision with printing smaller letters… not sure how this is going to work but im hoping it will if i increase the nozzle temp to 215 maybe. 5 stars for a .4mm nozzle if your print details are >.4mm I had bad luck at 200 nozzle temp on the first print, first couple layers and when i increased to 210 it started working much better (.4mm nozzle).

NM
12/28/2023
Nate M.
United States United States
I recommend this product

Helps with getting filament printing good

I was having trouble getting the metal fills printing good on my printer so I emailed and they helped be get settings good and dial it in and since the filament is exspensive they gave me a free new spool so I did not feel like I wasted any

05/09/2024

Protopasta, Filament by Protoplant

We're happy it worked out for you!

KF
12/27/2023
Kelli F.
United States United States
I recommend this product

Fantastic product and company!!

Excellent experience!! Products are high quality and fast shipping!!

05/09/2024

Protopasta, Filament by Protoplant

We appreciate the kind words!

DD
11/16/2023
David D.
United States United States
I recommend this product

It sucked this time.

I used the metal PLA with a well used brass tip and the metal tore the tip apart and I ended up with a horrible print. My fault for not changing the tip before running the metal. The last time I used metal I had excellent results so I know it was my own fault.

12/28/2023

Protopasta, Filament by Protoplant

So it goes with 3D printing. I hope your next experience is back to normal. Was the failure from an opening of the bore or flattening of the tip? If it's opening of the bore, you can choose an extrusion width larger than the current opening to extend the life of a nozzle. Flattening I've found just gets goopy and leads to flaws and failure. Also, painful chasing of first layer distance. Oh 3D printing...

MA
10/07/2023
Mohamed A.
United Arab Emirates United Arab Emirates
I recommend this product

Amazing Product and service

Not only was the product according to my requirements, it didn’t take time to reach

12/22/2023

Protopasta, Filament by Protoplant

So glad it arrived quickly and as expected!

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