Today we announce a brand new colorFabb material: DPA-100 – our first dissolvable support filament, specifically made for engineering materials.

colorFabb_XT and colorFabb PETG Economy printed with DPA-100. Topology optimized shelf bracket – by toms3dp


Learn more about the how-to and technical details here.


Beyond PVA

Unlike PVA our DPA-100 is less sensitive to moisture uptake and offers better shelf-life and print performance over time. It is a Dissolvable Polyacrylate material made to work specifically with engineering grade materials which are not suited for PVA, like PETG, ABS, ASA, PC and PA filaments. We have extensively tested DPA-100 on various 3D printing materials available in the market, both colorFabb and non-colorFabb branded.

DPA-100 is also perfectly suited for our range of co-polyester filaments: nGen, colorFabb_XT, colorFabb_HT and PETG Economy.

Quick guide: Which material and how?

Match Hotend temp Support Bed temp
nGen Yes 250 C 90C
colorFabb_XT Yes 250 C 90C
colorFabb_HT Yes 260 C 110C
PETG Economy Yes 250 C 90C
Generic ABS Yes 250C 100C
Generic ASA Yes 250C 100C

Read our full DPA-100 guide about the technical specifications and how to print.


Design by Ken Schulze

How to dissolve

Printing with DPA-100 is the first step. Dissolving the material is the second one. In order to dissolve DPA-100 you need a mild alkaline solution which is heated and stirred. At higher temperature DPA-100 will dissolve faster than at lower temperature. The temperature you choose depends on the temperature resistance of your build material. In general 20c below the temperature resistance of your build material is a safe settings. Thicker models would be less likely to deform and can handle temperatures closer to softening temperature. The minimum pH value for the alkaline solution is >10. We recommend using our DPA Detergent for making the alkaline solution.

The DPA Detergent is sold seperately from the DPA-100 filament.


Bicycle Helmet by Neomek


Detergent disclaimer

The detergent, dissolved in water, produces a mild alkaline which usually, together with the dissolved support material, can (in limited quantities) be disposed of via the wastewater. Please check your local regulations. You can acquire our waste profile datasheet by contacting support@colorfabb.com


DPA-100 and DPA detergent are available now exclusively from colorFabb’s website. Please note they are to be purchased separately.

DPA-100 is available as a 0.5kg spool and retails at € 120 ex VAT. Click here to head to our webshop.

DPA Detergent can be purchased per 1 kg drum at € 18 ex VAT and can be found here.

You can find all the relevant data sheets on the product pages.


Drill Case

With dual nozzle printers come great possibilities. Two colors, two different materials even. And what if we had a great support material? And what if we already happen to have such a material in our current portfolio? In between moving our entire company our print lab team started testing with using nGen as a support material for colorFabb_XT. A first test resulted in easy break away support with minimal scarring on the model.

For this test we used the GrabCAD’s Drill Case, which was originally designed for injection molding.

Design: https://grabcad.com/library/drill-case-1

We used the dual nozzle Ultimaker 3 with 0.2mm layer height for this print. The surface finish of the colorFabb_XT is fantastic.

Printing a part designed for injection molding is challenging. But with the right settings and some material experimentation we got a great result. To all designers and engineers modeling for injection molding: checkout what you can do with an Ultimaker 3 and colorFabb materials. These results give much more freedom for designing for 3D printing and using functional materials for the best results.

We launched colorFabb_XT over 2 years ago at the London 3D Print Show together with Eastman Chemical Company. Eastman is our material partner for co-polyesters. colorFabb_XT is made with Amphora AM1800 and has a unique formulation for 3D Printing that features excellent properties : High strength and very high toughness, Odor Neutral processing, High Tg / improved temp. resistance, Styrene free formulation, FDA food contact compliance, BPA (Bisphenol A ) free formulation. It will allow the user to produce 3D printed functional products in a safe way.

nGen has proven itself to be a very versatile material that can be used for a lot of applications and now being a support material is one of them!

nGen is an all-round filament which has many advantages over PLA. The temperature resistance is over 80 degrees C and it works on most printers with a heated build plate.  nGen is a low-odor, styrene-free material uniquely suited for 3D printing enthusiasts, particularly those who need the flexibility to print within a wide processing temperature range. With nGen you will have good flow properties through the printer nozzle—even at lower temperatures than some other polymers require. These properties make nGen more workable at a wider breadth of temperatures, producing reliable results and resulting in less waste. You can find more information on our dedicated landing page.

Both colorFabb_XT and nGen are made with Eastman Amphora™ 3D polymer. With Amphora, items can be created that are more functional, more durable, more efficient, and attractive.


Both nGen and colorFabb_XT are available in our webshop. You can find more information about co-polyesters in general in last year’s blog. Below is a handy chart which explains the differences between the rigid co-polyesters in our current portfolio: