Durethan® BKV25FN20
25% Glass Beads Reinforced, Injection Molding, Flame Retardant (halogen free), Heat Stabilized
General Information
Durethan® is the trade name for our range of engineering thermoplastics based on polyamide 6 and polyamide 66. These polyamides are partially crystalline thermoplastics which offer an ideal combination of properties, especially for technical applications. They provide high mechanical strength and stiffness, good dielectric properties, high resistance to both heat and chemical attack, and good friction and wear properties.
Special features
- Heat stabilized
General Document
Regulatory Affairs
- Absence Declaration BNST2023-11-16
- Absence Declaration DMF (2009/251/EC: Dimethylfumarate)2023-11-16
- Absence Declaration ELV (2000/53/EC: Heavy metals)2024-02-15
- Absence Declaration Nano Materials2023-11-16
- Absence Declaration Ozone Depleting Chemicals2024-06-27
- Absence Declaration PAH (Polycyclic Aromatic Hydrocarbons)2023-11-16
- Absence Declaration PBT chemicals under TSCA section 6(h)2023-11-16
- Absence Declaration POPs (Persistent Organic Pollutants)2023-10-27
- Absence Declaration Phthalates (2005/84/EC: DEHP, DBP, BBP,DINP,DIDP, DNOP)2023-11-16
- Absence Declaration Red Phosphorus2023-11-16
- Conflict minerals declaration (EICC, GeSI)2024-05-15
- REACH Registration Statement2024-03-27
- RoHS Statement (2011/65/EC: Heavy metals)2024-02-01
- SVHC, REACH Annex XIV and –XVII Statement2024-06-27
Yellow Card
Processing technology
Injection Molding
Injection Molding
Rheological properties
Molding shrinkage (parallel)
0.6
%
ISO 294-4
Molding shrinkage (normal)
0.7
%
ISO 294-4
Mechanical properties
Tensile modulus
5700
MPa
ISO 527-1/-2
Stress at break
80
MPa
ISO 527-1/-2
Strain at break
3
%
ISO 527-1/-2
Flexural modulus
5400
MPa
ISO 178
Flexural strength
135
MPa
ISO 178
Charpy impact strength (+23°C)
35
kJ/m²
ISO 179/1eU
Charpy impact strength (-30°C)
23
kJ/m²
ISO 179/1eU
Charpy notched impact strength (+23°C)
<10
kJ/m²
ISO 179/1eA
Charpy notched impact strength (-30°C)
<10
kJ/m²
ISO 179/1eA
Izod notched impact strength (+23°C)
<10
kJ/m²
ISO 180/1A
Thermal properties
Melting temperature (10°C/min)
220
°C
ISO 11357-1/-3
Temp. of deflection under load (1.80 MPa)
170
°C
ISO 75-1/-2
Temp. of deflection under load (0.45 MPa)
210
°C
ISO 75-1/-2
Coeff. of linear therm. expansion (parallel)
0.5
E-4/°C
ISO 11359-1/-2
Coeff. of linear therm. expansion (normal)
0.8
E-4/°C
ISO 11359-1/-2
Burning Behav. at 0.75 mm nom. thickn.
V-2
class
IEC 60695-11-10
Thickness tested
0.75
mm
IEC 60695-11-10
Burning Behav. at 1.5 mm nom. thickn.
V-2
class
IEC 60695-11-10
Thickness tested
1.5
mm
IEC 60695-11-10
Oxygen index
25
%
ISO 4589-1/-2
Ball pressure temperature
204
°C
IEC 60695-10-2
Glow Wire Flammability Index GWFI
960
°C
IEC 60695-2-12
GWFI (Thickness (1) tested)
0.75
mm
IEC 60695-2-12
Glow Wire Flammability Index GWFI
960
°C
IEC 60695-2-12
GWFI (Thickness (2) tested)
1.5
mm
IEC 60695-2-12
Glow Wire Ignition Temperature GWIT
750
°C
IEC 60695-2-13
GWIT (Thickness (1) tested)
0.75
mm
IEC 60695-2-13
Glow Wire Ignition Temperature GWIT
750
°C
IEC 60695-2-13
GWIT (Thickness (2) tested)
1.5
mm
IEC 60695-2-13
Electrical properties
Volume resistivity
>1E13
Ohm*m
IEC 62631-3-1
Electric strength
32
kV/mm
IEC 60243-1
Comparative tracking index
525
V
IEC 60112
Other properties
Water absorption
6.3
%
Sim. to ISO 62
Humidity absorption
2
%
Sim. to ISO 62
Density
1350
kg/m³
ISO 1183
Material specific properties
Drying temperature dry air dryer
80
°C
Drying time dry air dryer
2-6
h
Residual moisture content
0.03-0.07
%
acc. to Karl Fischer
Melt temperature (Tmin - Tmax)
250-270
°C
Mold temperature
80-100
°C
