How to print with DPA-100

What is DPA-100

DPA-100 is a dissolvable polyacrylate support material. A mild alkaline solution is needed to dissolve DPA-100 support material. Unlike PVA our DPA-100 is less sensitive to moisture uptake and offers better shelf-life and print performance over time.

Our DPA-100 support material is engineered to match with a variety of materials which can’t be supported by PVA due to bad adhesion to the build material. DPA-100 shows strong adhesion to PETG, ABS, ASA, PC and PA materials.

This means the DPA-100 is uniquely suited to match our co-polyester filament offering, nGen, colorFabb_XT, colorFabb_HT and PETG. DPA-100 is not recommended for use with PLA as build material due to the relatively high water temperature needed for dissolution.

colorFabb nGen supported by DPA-100 on the Ultimaker S5 – Bicycle Helmet by Neomek

How to Print with DPA-100

General settings

In order to successfully print with DPA-100 make sure your printer and slicer are able to set the below recommended settings.

Parameter DPA-100
Nozzle temperature 230-250C
Platform temperature 90-110C
Print speed 40-80 mm/s
Cooling fan 0% for best adhesion between layers
Standby nozzle temperature ~190C
Platform material PEI/BuildTak/Glass + adhesion promoter

Design by Ken Schulze

Avoid layer delamination – DPA-100

Make sure the printing temperature is high enough so you avoid the support structures from delaminating during the print. For most machines we would recommend  printing temperature of 240-260C, if your printer doesn’t feature a closed build chamber you would likely print at the higher range to avoid delamination of layers during the print.

If you do have a heated chamber, the temperature can be set to 70-90C. Without heated chamber the recommendation is to have the Platform temperature set to 90-110C.

Print a brim!

Use a brim around your model and support structures. If your slicer has the option select the build material to be used for printing the brim. This will help to keep the DPA-100 support structure in place. This is useful for thin and tall support beams to make sure these won’t tip over during the build. It also reduces warping of the DPA-100.

Design by Christopher Tenelsen

Solid support interface layer and 0 offset.

This might not be a surprise for most users, but make sure to enable the interface support layers and make these solid for the best surface quality on the build material. In our testing we also set the support structure offset to 0, to ensure best chance of good adhesion between support material and build material.


Which materials does DPA-100 support.

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

Our DPA-100 support material is engineered to match with a variety of materials which can’t be supported by PVA due to bad adhesion to the build material. DPA-100 shows strong adhesion to PETG, ABS, ASA, PC and PA materials.

Prepare your prints

For a faster dissolving cycle try to remove as much support material before putting the model in the dissolving device. Wear eye protection and gloves when removing support material. If your model has fine detailed features do not try to attempt removing support material, you will risk damaging the model.

It’s good idea to keep note how much support material is removed so you know how much is going to be dissolved. Once the alkaline solution is saturated it can’t dissolve anymore support material and you will need to renew the alkaline solution.

colorFabb_XT to the left and colorFabb PETG Economy to the right. Topology optimized shelf bracket – by toms3dp

How to dissolve DPA-100

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.

At colorFabb we experimented with a low cost set-up for dissolving DPA-100. We used a sous-vide stick and a plastic containter with lid. The sous-vide stick will heatup the water to desired temp and circulate water.


The process step by step:

  • Fill up your dissolving device with water, use 4 l of water to dissolve 100 g of DPA deterent.
  • Heat the bath to the required temperature and start the recirculation process.
  • You can add your models as soon as the bath has reached the correct temperature and DPA detergent has been dissolved in water.
  • The dissolving process usually takes between an hour and 9 hours, depending on the amount of DPA-100 supportmaterial being dissolved, the geometry of the model and the temperature of the water. It’s a good idea to periodically check the process and if necessary change the position of the model in the device. Make sure the model is submerged for the duration of dissolving DPA-100 support material.
  • When the support material is full dissolved, let the model dry for at least 15 minutes, rotating the model a couple of times to make sure the detergent can drain off.
  • After initial drying, rinse the model thoroughly using warm, running water to remove the remaining detergent and then let dry completely.
  • After completely drying white residue could appear, if so, put the model into a warm (30 – 50 °C) water bath for at least one hour. Add rinsing agent for dish washers to speed up the process.
  • 1 kg of DPA-100 can dissolve at least 1 kg of support material. The more support material is dissolved, the slower the material will be able to dissolve. It’s a good idea to keep track of how many grams of support material has been dissolved so you know when to renew the alkaline solution.
  • Before disposing the solution, it must be neutralized. For this, we recommend 5 – 10 g citric acid per litre of used up solution. When foam formation occurs, the solution has reached a neutral pH area.
  • 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

For complete operating instruction on using DPA Detergent please click here.

Design by ISIFC

How to print with LW-PLA

colorFabb LW-PLA is available in our webshop

How to print with LW-PLA

At colorFabb material development never stops. We’re starting 2019 with a fascinating new material, first of its kind in FFF 3D printing materials.

We’re proud to announce, colorFabb LW-PLA. This filament uses an active foaming technology which is triggered by temperature. At it’s peak the filament will expand nearly 3x it’s volume, meaning users can decrease flow by 65% to obtain lightweight parts, or use the expanding properties to speed up print time by using big layer heights or single extra thick perimeters.

Continue reading

How to print with PA-CF Low Warp

How to print with PA-CF Low Warp

Below are some tips and tricks to get the best results with PA-CF Low Warp, colorFabb’s first nylon based engineering filament.

Original blog announcement: click here
Available in our webshop: click here
To get the best possible quality out of any 3D printing material it’s important to match the slicer settings with the material which is used.
On this page we’ll address the most important settings and formulate general settings to be used as a starting point for further fine tuning.
Build platform
The material shows good results when printed at ambient temperature, or cold bed. For some model geometries or high density infill parts a heated bed at 40C / 50C is advised. Using a brim will help when printing on a cold bed and heated bed. The material has been tested on buildTak and glass bed. When printing on glass bed we advise using 3DLac to obtain better adhesion to the plate.

Printing temperature

A minimum hot-end temperature of 260C is recommended. If you’re machine has 260C as the maximum temperature you’ll need to fine tune by lowering speed settings to make sure the 3D printer can keep up with the extrusion needed at certain speeds. The advised processing temperature for this material is set between 260C and 280C.


As always, less cooling results in better layer-to-layer adhesion, more cooling gives better result on complex overhanging surfaces. We would recommend a 50% fan speed as default and use less fan speed if the print geometry allows for this.

Abrasive resistant nozzle

The addition of carbon fibers makes this filament highly abrasive for regular brass nozzle. We recommend users to use abrasive resistant nozzles, such as E3D hardened steel nozzles or Olsson Ruby nozzle.

Users can expect a slight increase in retraction length and speed to prevent oozing from the nozzle on travel moves. If the material is saturated with moisture users can notice more oozing of the material on travel moves.
Layer height

For this material we recommend a minimum of 0.2mm layerheight. Due to the length of the fibers layers lower then 0.15mm can cause issues such as clogging or partial clogging of the nozzle.

Print speed
Most 3D printers will process this material at speeds of around 30/40 mm/s for layer height around 0.2mm with a 0.4mm nozzle. Outer perimeters can be printed slower at 30mm/s for better surface quality
This information was first published on the dedicated landing page: