Copper Filamet™ Sinterable Filament

Copper Filamet by The Virtual Foundry, image 1

Copper Filamet™ | Sinterable Copper Filament

$142.99

SKU FCU175500G

Good for

Metal & Sinter →

Size 1.75mm 2.85mm Pellets (1kg only)

Weight 0.5kg 1kg 3kg (2 week lead time)

Free Shipping On this item
Easy Returns 30 days from delivery
Ships in 48 Hours Dispatched within 48 hours of your order

Copper Filamet™ is the easiest metal in The Virtual Foundry range to print and sinter, which makes it the usual starting point for metal 3D printing. It prints like PLA on an open-architecture FFF/FDM printer; after firing in a kiln you have a 100% copper part.

Specifications

Metal content: 86.0%–90.7% copper
Filament density: 4.3–5.0 g/cc
Formats: 1.75mm and 2.85mm spools, and pellets (pick in the variant selector)
Nozzle: 0.6mm hardened steel, standard flow

Printing

Prints similar to PLA with minimal to no warping
Feed the filament straight into the extruder
Do not dry it: drying degrades the binder (it is less hygroscopic than PLA)
Also works in 3D printing pens

Sintering setup

Debind: bury the part in Al₂O₃ ballast
Sinter: bury in Magnesium Silicate ballast and cover with Sintering Carbon
Hold it all in an Alumina Crucible inside a kiln such as the FireX

Expect roughly 90–95% density after sintering. A debound (not yet sintered) part has no structural strength; copper can be handled gently but with care. To get a shiny part without sintering, sand from 120 to 3000 grit and finish with a cotton buffing wheel and polishing compound.

Applications

Induction coils and electrical components
Heat sinks and thermal management
Antimicrobial surfaces
Prototypes and functional metal parts
Short runs without tooling or machining

New to metal printing? The Getting Started Bundle pairs Bronze Filamet™ with every sintering consumable in one box.

About this product

Will it print on my printer?

Filamet works on nearly all open-architecture FFF/FDM printers. Swap in a hardened steel nozzle (the size is in the specifications above) and print it like PLA. Not sure about your model? Email us the printer name and we'll check before you buy.

How dense is the sintered part?

Following The Virtual Foundry's debinding and sintering instructions, expect roughly 90-95% density.

How strong is the part straight off the printer?

Stronger than you'd expect: you can handle it without babying it. It won't carry load as well as plain PLA, though.

Can I debind the part and skip sintering?

A debound part has no structural integrity. Copper parts can be handled gently if you are careful, but sintering is what makes them solid metal.

Can I make a part shiny without sintering?

Yes. Sand progressively from 120 up to 3000 grit, then polish with a cloth. For a mirror shine, use a cotton buffing wheel with Zam polishing compound.

Filament questions

Ordering & Shipping

This item ships within 48 hours of your order, directly from the brand, and shipping is free. You will get a tracking number by email as soon as it is on its way.

Payments & Billing

We accept all major credit cards, Shop Pay, and the accelerated checkout options shown at the top of the cart. Your card is charged when the order is placed.

Need to change or cancel an order? Email us right away and we'll do our best to help before it ships.

Returns & Refunds

Unused parts can be returned within 30 days in their original packaging. A flat $4.99 return shipping fee applies — email us first and we'll send return instructions.

Received the wrong item or something arrived defective? Contact us right away and we'll make it right with a replacement or full refund, no return fee in that case. Full details on our return policy page.

Support

A real person answers our support email — not a bot. If a part arrives faulty or doesn't fit as described, tell us what happened and we'll make it right.