safety
sheet
Biothan clear casting resin
Biothan
2 MD 775 N with the hardener Biodur M 330 or M 332
(Vacuum Casting Resin, transparent, for big parts)
Description:
Biothan 2 MD 775 N is a casting resin composed of sugar-, Caprolacton-
and OLEO -polyols with several proprietary natural additives, which
is especially characterized by high temperature stability and a
good impact viscosity. The material is well suited for polishing.
The low viscosity of resin and hardener allows a quick, thorough
and easy mixing.
Following
are some of the particular characteristics of the casting resin
system:
-
no safety labeling requirements (for the resin as well as for the
hardener)
- long pot life - deform - time ratio
- toxicologically harmless to use in the casting
- cures without external heat application (thickness < 3 mm required
tempering at 55 - 60 °C)
- casted parts can be exposed to a temperature up to 150°C (minimized
hardening time)
- good mechanical / machining characteristics
- suited for vacuum casting
- transparent glassy and UV-stable
Application:
For production of negative and positive models and other transparent
parts
Basic
Data:
| mix
resin-hardener: |
1
: 1,5 by weight |
| pot
life: |
40-
180 |
| de-form: |
1
- 14 h |
| ultimate
hardening: |
6
- 24 h |
Application
Data:
Biothan
2 MD 775 N and hardener M 330 or M 332 are intensively mixed under
vacuum in a ratio of 1 : 1,5 (about 1 minute). Either the material
has to be left in the vacuum chamber after mixing for 4 - 6 minutes
or the air has to be sucked in vacuum for 2 - 5 minutes.
Generally,
the hardener needs to be weighed first. Then, the resin can be weighed
and both components can be mixed.
Physical Characteristics:
| mixture
viscosity: |
1
700 2 000 mPa.s / 20°C (68°F) with M 330 |
| specific
weight: |
1.1
g/cm3 |
| color: |
resin:
transparent, hardener: transparent |
| Shore
hardness: |
80
- 85D |
| shrinkage: |
<
0.1% (wall thickness < 5 mm) (specimen 5x120x250) |
| compressive
strength: |
110
N / mm2 |
| tensile
strength: |
90
N / mm2 |
| heat
resistance: |
>110°C |
Fitness for
storage: In closed original vessels 12 months at temperatures
between 15°C - 30°C (59°F - 86°F).
Prevent moisture
25/04/2026
The information on this data sheet is based on our practical experiences
and reliable tests in our laboratory. Nevertheless we cannot bear
any responsibility for the use of this information, as we do not
have any influence on the conditions and circumstances the products
are stored, handled and used in practice. We ensure to be available
for further information and advise at any time.
|
