At the same time Dreve Otoplastik is material manufacturer and earmold laboratory that manufactures its portfolio completely digitally. Thanks to our great practical experience, we can constantly develop our products and processes, always with the aim being state of the art. Our FotoTec® range offers a variety of products ideally suited for the Stereolithography or the DLP 3D printing process. With Dreve as a partner you can be on the safe side: We offer the entire validated process – for your precise printing results.



3D print revolution

BioTec. Silicone ready to print.

The new and innovative BioTec is the first printable silicone material for the direct manufacturing of soft earmolds and hearing protection.

  • 3D printing process with 385nm wavelength
  • Time saving thanks to reduced workflow
  • Flexible, elastic and thermosensitive material
  • Tear resistant and resilient
  • Perfect smooth surface quality
  • Final hardness: 50–55 Shore A
  • Patent pending
  • Print time: 105 minutes for 350 layers (100 μm)
  • Precise results 1:1

FotoTec® DLP.A

Specialist for the Digital Light Process.

FotoTec® DLP.A is a biocompatible resin with optimal features for the Digital Light Process. All our FotoTec® DLP.A materials are THFMA free.

New color styles

  • Brilliant transparent: With highest UV stability
  • Deep black opaque: Optimum color opacity as well as Shake & Go principle for an easy application
  • Neon yellow transparent: Bright signal color especially for hearing protection

Discover our color range.

beige opaque 1
beige opaque 2
beige opaque 3
deep black opaque
blue transparent
grey transparent
clear transparent
green opaque
brillant transparent
neon yellow transparent
orange transparent
purple transparent
reddish orange transparent
reddish transparent
red transparent
black opaque
white opaque

FotoTec® DLP.flex

Direct2Print: Direct printing for flexible parts.

First flexible material for manufacturing elastic earmolds and RICs on DLP printing systems.

FotoTec® SL.F

The specialist for the Stereolithography Process.

Our biocompatible resin is ideal for the efficient manufacturing of earmolds and shells on the basis of the stereolithography process and achieves very thin walls.


FotoTec® SL.E

The versatile material for earmolds.

FotoTec® SL.E is ideal for manufacturing earmolds for BTE hearing systems, RIC earmolds and shells. The material sets new standards for the Stereolithography Process and the Digital Light Processing Technology.


FotoTec® SL.A

Proven material for the Stereolithography Process.

FotoTec® SL. A is a laser-curing resin for the manufacturing of ITE shells and BTE earmolds on the basis of stereolithography process.



FotoCast® is geared to the production of cast forms for manufacturing soft earmolds. Its low viscosity offers an easy cleaning of the 3D printer. Soft earmolds made from Biopor® AB or Biopor® AB Xtreme can be easily removed from the cast forms:  Same as the lychee principle.


Biopor® AB light

Update: Enhanced for 3D FotoCast® process.

The proven Dreve material for soft earmolds and water protection now has been qualified for the 3D FotoCast® manufacturing process.

  • Addition-vulcanizing silicone for high-quality and durable splash water protection earmolds
  • 1 fits all: Suitable for traditional and automated manufacturing processes
  • Easy finishing and lacquering of the soft earmold
  • Thanks to the material’s reduced weight, Biopor® AB light earmolds are still floatable even when lacquered
  • Thixotropic characteristics for easy processing in 48 ml double cartridges as well as cast shells
  • Absolutely emission-free and physiologically completely harmless
  • Unique color variety
  • Final hardness: 25 Shore A

Perfect match.

Which 3D Dreve material matches to which 3D printer?

Your 3D printer is not listed yet? Talk to us!

PrinterHA20 II, HA30 II, HA40 II, HA90 Speed, HA90 Speed XL
HA20, HA 30, HA40, HA90
SolFlex 350
Ultra series
ProJet 6000, Viper si2
(3D Systems)
FotoTec® DLP.Ao
FotoTec® DLP.flexo
FotoTec® SL.Eo
FotoTec® SL.A

  Print parameter available
o Print parameter in progress


Perfect finish.

Which lacquer matches which 3D material?

LacquerFotoScreenSoftTouchVarioScreenBiopor® UV-S
FotoTec® DLP.A / oo
FotoTec® DLP.flexoo
FotoTec® SL.E / oo
FotoTec® SL.A / oo
Biopor® AB

•  Automatic
o  Manual



For a safe manufacturing process of medical devices.

  • Nitrogen option to avoid inhibition layer
  • Password protected admin menu for secure data input

Admin rights

  • Defining programs regarding time, intensity and N2 option
  • Reading out log data for monitoring and tracking
  • Updating and calibrating the system

User rights

  • Selecting and starting curing programs
  • Receiving feedback about successful run of program

LED Quick Test

  • Detects most of the common LED failures within seconds
  • Results are logged for traceability