bredent thermopress 400 Mode D'emploi page 14

Mixing ratios:
Use of special expansion plaster
Material
Bio Dentaplast
bre.flex
Bio XS
Use of formaldehyde-free class IV plaster
Material
bre.dentan HP
Polyan IC
bre.flex 2 edition
nd
Please invest the finished model into the flask once the total expansion time for the plaster has elapsed.
Wax model:
The dimensions used for wax models should be very generous. In other word, clasps and other delicate elements
should be made thicker. A modelling wax with a low melting point, e. g. Biotec modelling wax (REF 51000610), is
ideal for the boiling out phase with boiling water. As a result, any color residues on the injection-moulded thermo-
plastic part are avoided.
Film sprue:
A film sprue must be attached to the wax model in order to benefit from the outstanding mechanical properties of
thermoplastics. Apply this film sprue using a 1.5 mm thick wax plate. Using a 10 mm thick injection moulding channel
(REF 43001720), attach the molten thermoplastic directly to the model via the 1.5 mm wax plate.
Upper jaw
Cross-section of injection sprue
Ø 1,5 mm
14
Model Expando-Rock
per 100 g
per 100 g
per 100 g
Model Exakto-Rock S
(or Thixo Rock)
per 100 g
per 100 g
per 100 g
bevel and taper
a thickness of
1.5 mm (press on)
Ø 10 mm
Ø 10 mm
bredent GmbH & Co. KG · Weissenhorner Str. 2 · 89250 Senden · Germany ·
T: +49 7309 872-22 · F: +49 7309 872-24 · www.bredent.com · @: info@bredent.com
Expando-Sol Distilled water
26 ml
19 ml
3 ml
Distilled water
20 ml
20 ml
20 ml
Lower jaw
Cross-section of injection sprue
Ø 1,5 mm
Expansion
time
0 ml 6 hrs
7 ml 6 hrs
23 ml 6 hrs
Hardening time
1 h
1 h
1 h
1,5 mm
Ø 10 mm
Ø 10 mm