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Product Data Sheet
Version 02 / 2011
Biresin® M75
Areas of Application
Product Benefits
Machine application of paste on substructures t
for production of contour shaped machinable t
blanks for design-, styling- or cubing models
Immediately after mixing the mixture gets
thixotropic and hangs on vertical surfaces
Very dense and fine surface, easy to varnish
Hard material with high dimensional stability
Low warpage
Very good and easily workable
Polishable
Description
Basis
Resin
Hardener
Two-component-PUR-system
Biresin ® M75, polyol, grey, filled
Biresin ® M70, MDI-based isocyanate, reddish brown, unfilled
Processing Data
Resin
Hardener
Biresin ® M75
Biresin ® M70
mPas
~ 15,000
~ 175
g/cm³
Individual components
Viscosity, 25°C
Density
1.28
1.23
Mixing ratio resin to hardener
in parts by weight
100
48
Mixing ratio resin to hardener
in parts by volume
100
50
Mixture
Mixed viscosity , 25°C
after 10 - 15 sec pasty
Potlife, RT, after machine application
min
Setting time (workable)
h
10 - 15
>8
Physical Data (approx. values)
Biresin ® M75 resin
with hardener
Colour
Biresin ® M70
light grey
Density
ISO 845
g/cm³
1.3
Shore hardness
ISO 868
-
D 79
E-Modulus
ISO 178
MPa
2,460
Flexural strength
ISO 178
MPa
61
Compressive strength
ISO 604
MPa
59
Impact resistance
ISO 179
kJ/m²
11
Glass transition temperature, Tg
ISO EN 61006
°C
70
Biresin® M75, resin
Biresin® M70, hardener
250 kg; 50 kg net
225 kg; 20 kg net
Packaging
Individual components
Biresin ® M75 1 / 2
Tooling & Composites
Model paste
"
