01.2023 DIPRO®blend H and DIPRO®flex High-Performance Polyolefins with Minimal Mold Shrinkage for High Precision

Together with ROTFELD-Consulting, DIPRO®mat has been able to develop a range of unreinforced and special glass fiber-reinforced high-performance polyolefins (patent pending) that exhibit hardly any shrinkage, are incredibly tough and – unlike conventional impact-modified PPs – do not lose any heat distortion temperature, since a blend component provides a Tg (glass transition temperature) of 160°C.

Source: Grauts GmbH

This results in polyolefin compounds with high precision available for injection molding and 3D printing. An exciting fact is that the development started in additive manufacturing, where a large warpage is useless, and now returned to injection molding applications.

12.2022 First Processing with Adaptive IR Zone Heating System (FFF/FDM Printing)

The equally smooth surface coupled with high strength in the build-up direction was achieved with Apium’s patented IR zone heating system. In this process, only the uppermost layers are melted so that there is a high level of layer bonding. In the meantime, the lower layers can cool down without any further thermal influence on the surface quality.

11.2022 First Production with DIPRO®mid Carbon Fiber on High-Speed Pellet Printer

Source: Grauts GmbH

Machine operating lever

  • Printing speed up to 600mm/s

10.2022 Filament / Pellet Printing – Hard/Soft Compound 3D

Simple hard/soft compound

  • made on Tumaker 3D printer (filament and pellets)
  • Hard: Filament printing / Material: DIPRO®blend GF 15 %
  • Soft: Pellet print / Material: DIPRO®flex S60H24
  • available as of 1st quarter 2023

09.2022 Development of PRECISION Polyamide for Flame Retardant (Injection Molding and 3D Printing) & Halogen-free DIPRO®flex FR, 75 ShA and Above.

08.2022 Flexible Structure Made of DIPRO®flex for Pellet and Filament Printing, up to 120 °C, Flexible, Super Bonding Strength for Flexible Three-Dimensional Structures

Source: Grauts GmbH

Flex structure

filament print from DIPRO®flex, 90 ShA

  • good reset behavior
  • temperature up to 120 °C
  • can be colored as desired
  • no pre-drying necessary

07.2022 Filaments by Network Partners with CARBON and GLAS Fiber Reinforcement with Extremely Low Shrinkage

Source: Grauts GmbH

Cooling nozzle

filament print made of DIPRO®mid 25 % GF          

Source: Grauts GmbH

Sports bike bottle holder

filament print from DIPRO®mid 15 % CF 

Source: Grauts GmbH

Turbine wheel

filament print made of DIPRO®mid 15 % GF                

06.2022 TPE Masterbatch Development for In-House Production of TPS with Low Compression Set for Injection Molders & Printable TPE Special Compounds for FFF/FDM/LAAM/VLAAM and Pellet Printers

Source: Q.Big 3D GmbH

DIPRO®flex pellet printing

05.2022 DIPRO®mid for High-Capacity Pellet Printers VLAAM

Caravan rear end
Source: Q.BIG 3D

Caravan rear end

Precision polyamides with minimal mold shrinkage for high-capacity printers

  • DIPRO®mid 25 % GF
  • Caravan rear end
  • Largest molded part printed to date
  • Dimension: 210 x 70 x 30 cm
  • Co-Founder Q.BIG 3D, Dennis Herrmann

01.2022 Development of Radiation-Crosslinkable DIPRO®mid PRECISION Polyamides for DIPRO®mat

Source: DIPRO®mat

Crosslink tester with switching bridge

Radiation-crosslinkable DIPRO®mid precision polyamides show the following differences compared to conventional PA grades:

  • little warping due to low shrinkage
  • very good surface
  • low influence of air humidity on properties
  • thermostable crosslinking additive, homogeneously compounded, up to 40 %
  • energy efficient due to 35 °C – 40 °C lower melt temperature than PA66
  • maximum 60 % glass fiber reinforcement possible

08.2021 Product Highlights ETP for Filament and Pellet Printing

Reinforced high-performance PA grades for FFF (filament printers) and FGM (pellet printers)
All FFF-FGM polyamides with glass fiber reinforcement show extremely low mold shrinkage. This is particularly important for large-format printers.

PX-DIPROmid T25.7CH2C3*9200F                     Product-ID: 912             Request data sheet
(semi-aromatic, 15 % carbon fiber, HDT/B=200 °C)

PX-DIPROmid-T25.7CH2GF5*9200F                  Product-ID: 910             Request data sheet
(semi-aromatic, 25 % glass fiber, HDT/B = 200 °C)

PX-DIPROmid HT4.0H6.0GF5*9200F                  Product-ID: 921             Request data sheet
(PPA-25 % glass fiber, low warpage, Tg = 125 °C, HDT/A 215 °C, HDT/B 243 °C)

Grafik Formschwindung 25 % Glasfaser und 15 % Carbonfaser für Filament- und Granulatdrucker


07.2021 Product Highlights ETP Injection Molding

High stiffness low warpage polyamides (40-60 % glass fiber reinforcement) with aesthetic surface, low warpage
PX-DIPROmid A1H6.1G12T3U*9200                   Product-ID: 807             Request data sheet
PA66 + X, 60 % glass fiber, ultra-flow, 3rd generation partially aromatic PA, extremely good surface, low warpage.
The influence of moisture absorption on the properties is low. This is a typical metal substitute material with aesthetic surface.

PX-DIPROmid C3H6.1GF12T1U*9200                 Produkt-ID: 793             Request data sheet
PA-Copo + X, 62 % glass fiber, partially aromatic, a possible answer to constantly recurring PA66 shortages.
The high modulus aesthetic material exhibits unprecedented low mold shrinkage values (0 % md/0.1 % pmd) and is suitable for dimensionally stable metal replacement applications. The tensile strength of 265 MPa is high, and the processing window is relatively wide.
Mechanical values perpendicular to the fiber are 28-30 % better compared to competitor materials.
High performance polyamides of the same family with 40 % and 50 % glass fiber reinforcement are available.

50 % glass fiber reinforcement, aesthetic surface, low warpage
PX-DIPROmid A2H6.1G10T2U*9200                   Product-ID: 734             Request data sheet

PA66 + X, 50 % glass fiber reinforcement, partially aromatic, low warpage, easy-flow, aesthetic surface
The influence of water absorption on the properties is low. This is a typical metal substitute material for the automotive industry and mechanical engineering.

PX-DIPROmid A2H6.1G10T3U*9200                  Product-ID: 803             Request data sheet
PA66 + X, 50 % glass fiber reinforcement, partially aromatic, very low warpage, easy-flow, aesthetic surface
Compared to Product ID: 734, this high-performance material offers a wider processing window and less warpage.

DIPROmid T50.4H2C3*9200 and DIPROmid TR50.4H2*6000

Source: ROTFELD Consulting
Filament and component from Rheneon GmbH

With DIPROmid T50.4H2C3*9200, DIPRO®mat has developed a high-performance material with the following special features:

  • amorphous polyamide with 15 % carbon fiber
  • very high stiffness, tensile modulus = 10.400 MPa
  • very high strength 160 MPa
  • extremely low mold shrinkage of 0 – 0.1 %
  • dimensionally accurate lightweight material
Source: ROTFELD Consulting
Filament and component from Rheneon GmbH

Another interesting material is DIPROmid TR50.4H2*6000 transparent.

  • amorphous, transparent polyamide
  • low warpage
  • impact resistant and dimensionally stable
  • can be dyed in brilliant colors as desired

The rheology of both products is matched to granulate and FFF printing. 

The DIPRO®mat team commissioned two highly specialized plants for thermoplastic AM materials (ETP and TPE) and also high-performance compounds for injection molding and extrusion in spring 2021. With a capacity of 1200 t/a, small quantities from 100 kg/batch as well as production quantities in the ton range can be produced for innovative partners.hergestellt werden.

Crosslink tester with switching bridge