Pellets · Bosch pellet printer Limited processability

PVDF (pellets)

Zheflon · FL2008.2

Polyvinylidene fluoride is a fluoropolymer with exceptional chemical resistance. It withstands acids, alkalis and solvents that attack conventional thermoplastics – and via our pellet process it can be printed economically even for larger parts.

Limited processability

We can process this material – for prototypes, visual and design samples and lightly loaded parts. It is currently not qualified at our site for load-bearing functional parts. We are working on solutions to increase the strength and load-bearing capacity of printed parts made from this material in the future. Talk to us – we assess your part individually.

Property profile

Temperature 3Chemicals 5Strength 2Toughness 3Dimensional stability 3Printability 2

Rated 1 to 5 relative to the other materials in our range. This is an experience-based orientation aid, not a measured value – the hard numbers are in the table below.

Technical data

PropertyValueSource
Material classFluoropolymer (PVDF homopolymer)Zheflon TDS FL2008
Density (ASTM D792)1.77–1.79 g/cm³Zheflon TDS FL2008
Tensile strength at yield (ASTM D638, 50 mm/min)≥ 40.0 MPaZheflon TDS FL2008
Tensile strength at break (ASTM D638)≥ 40.0 MPaZheflon TDS FL2008
Tensile modulus (ASTM D638, 1.0 mm/min)1,800–2,500 MPaZheflon TDS FL2008
Flexural modulus (ASTM D790)1,700–2,300 MPaZheflon TDS FL2008
Elongation at yield (ASTM D638)≥ 8.0 %Zheflon TDS FL2008
Elongation at break (ASTM D638)≥ 10.0 %Zheflon TDS FL2008
Shore D hardness (ASTM D2240)75–80Zheflon TDS FL2008
Izod impact, notched, 23 °C (ASTM D256)60–160 J/mZheflon TDS FL2008
Heat deflection temperature at 1.8 MPa (ASTM D648)105–115 °C (after annealing 150 °C / 16 h)Zheflon TDS FL2008
Vicat softening point (ASTM D1525)135–145 °CZheflon TDS FL2008
Melting point (ASTM D3418)169–173 °CZheflon TDS FL2008
Crystallisation temperature (ASTM D3418)134–144 °CZheflon TDS FL2008
Glass transition temperature (ASTM E1356)−32 °CZheflon TDS FL2008
Decomposition temperature375 °C (1 % weight loss, in air)Zheflon TDS FL2008
Melt flow rate (ASTM D1238)15.0–25.0 g/10 min (230 °C, 5 kg)Zheflon TDS FL2008
Water absorption, 24 h (ISO 62)≤ 0.040 %Zheflon TDS FL2008
Linear mould shrinkage0.020–0.030 cm/cmZheflon TDS FL2008

These values are taken from the manufacturer datasheet and apply to the material, not to the printed part. In 3D printing the achievable properties depend on part orientation, layer height and process parameters – in the Z direction in particular they are lower. Please talk to us before relying on them for design.

“Qualified for functional parts” is a general classification. A functional part can be a simple clip or a main load-bearing member – the forces and load cases differ fundamentally. We therefore always assess in each individual case whether a material is suitable for your part.

Source: Zhejiang Fluorine Chemical New Material Co., Ltd., Zheflon® FL2008 PVDF – Injection Grade (base-grade datasheet, supplied for FL2008.2) · supplied by the distributor

Strengths

  • Outstanding resistance to acids, alkalis and solvents
  • Very good weathering and UV resistance
  • Higher temperature resistance than common standard plastics
  • Inherently flame retardant

Limitations

  • High density of 1.77 g/cm³ – parts are heavier than those made from standard plastics
  • Overheating can release corrosive decomposition products – extraction is mandatory
  • Layer adhesion requires carefully tuned parameters
  • Considerably more expensive than standard plastics

Typical applications

Produced on: Bosch pellet printer — More about this machine

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