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Bredent Master Pin System |
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Technical
Support |
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Related Products |
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INSTRUCTIONS FOR USE
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MASTER-PIN SYSTEM
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| Before using this product, please read and follow these
instructions carefully. |
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1. Indication Range:
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| The Master-Pin System, Master-Pin (brass) and Master-Pin Sleeve
(plastic), is used for exact repositioning of sawed individual dies
on the model base of the sawcut model. |
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2. Processing |
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2.1 Preparation of the arch |
The arch into which the holes for the pins are to be
drilled must be ground flat. A plaster trimmer with
diamond trimming wheel is perfectly suitable for this
purpose. The trimmed base of the arch can be optimized
with wet sanding paper (e.g. grain size 600). Let the
arch dry well to avoid smearing of the plaster during
milling and drilling.
Before drilling and placing the Master-Pins in the arch,
grind the lingual resp. palatal inner side of the arch
slightly conical (6º) towards the base. This will
simplify subsequent removal of the arch from the model
base and also serves to firmly position the individual
dies on the model base and protect them against torsion. |
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2.2 Drilling the pin holes |
Correct adjusting of the Master-Pin Diatit Tungsten
Carbide Drill 1.5 º x 2 mm. in the pin-drilling unit is
absolutely required.
The boundary line for drilling at the Master-Pin must be
flush with the surface of the arch to receive the exact
drilling depth. We recommend that you prepare two drill
holes for each die: 1. Drill hole = central fissure; 2.
Drill hole = at a distance of 2 to 3 mm. toward the
lingual resp. palatal area. |
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2.3 Gluing in the Master-Pin |
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Add a drop of cyanoacrylate adhesive (super glue) onto a
suitable object (e.g. wax plate). Only the surface of
the face of the gluing shaft of the Master-Pin is dipped
in the cyanoacrylate adhesive. The Master-Pin is then
inserted up to the stop into the drill hole at a right
angle towards the base of the arch. |
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2.4 Separating |
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After gluing in the Master-Pins, apply Master-Sep (Item
#520 002 90) plaster/plaster separating liquid onto the
die using a brush. |
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2.5 Sliding on the Master-Pin Sleeves |
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Slide the Master-Pin Sleeves onto the Master-Pins so
that they are seated flush with the base of the arch.
Should two Master-Pins be positioned very closely to
each other, the two Master-Pin Sleeves are slid on with
the flattened sides facing each other. |
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2.6 Preparing the base |
Prepare several arches using liquid plaster and e.g. the
Master-Split System (Item #360 012 4M) without the
formation of bubbles.
Since the two Master-Pin Sleeves are 0.5 mm. higher than
the Master-Pins, a uniform, defined height is achieved.
All Master-Pin Sleeves can be seen at the model base. |
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2.7 Trimming |
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Finally, trim the sides of the model to ensure that the
arch can be easily removed from the model base. |
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3. Safety recommendations and hazard warnings |
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When working with the pin drilling unit, the safety
recommendations and hazard warnings of the respective
manufacturer must be observed; the same applies to
handling of the cyanoacrylate adhesive (super glue). |
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4. Storage and durability |
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The Master-Pin System must be stored at room temperature
under dry conditions. |
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5. Other information |
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The information contained in these instructions for use
is always updated according to the latest knowledge and
experience. Therefore, we recommend that you read these
instructions again before using a new package. These
instructions refer to the Master-Pin System, Item #360
012 26, 360 012 25, and 360 011 92. |
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INSTRUCTIONS FOR USE
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MASTER-SEP
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| Before using this product, please read and follow these
instructions carefully. |
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1. Indication Range:
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| When producing sawcut models, the special separating liquid
Master-Sep is used to separate the arch basis against the plaster. |
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2. Processing |
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2.1 A small quantity of Master-Sep is added into a suitable container (e.g. dappen dish, Resi-Mix) depending on the number of arches to be separated. |
The bottle must be immediately closed after each use.
Insulate the trimmed arch - with the pins glued in - on
the base and the sides up to a height of approximately 5
mm. using a large soft brush. Work quickly and make sure
that the surfaces are well coated. |
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2.2 Special information |
Insulate (separate) the arch and the metal pins to
optimize soft friction between metal pin and plastic
sleeve.
A whitish coating on the pins indicates that the gliding
layer is intact. Apply Master-Sep again onto the metal
dies to ensure easy removal or insertion of dies that
are difficult to remove or insert. This way, first
removal of the arch from the model base is much easier. |
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2.3 Please note: |
Do not mix the content of the bottle with other liquids.
Never use the separating brush directly from the bottle.
After each use, the brush must be cleaned with a paper
tissue.
The separating liquid dries very quickly; if metal pins
are used, the plastic sleeves are put on only after the
liquid has dried. The base of the arch is prepared in
the usual way.
As base or model system, we recommend e.g. the
Master-Split-System, Item #360 012 4M. After the plaster
has hardened (follow times in manufacturers'
instructions), trim the model to obtain the desired
size. The arch of a sawcut model, which has been dried
with compressed air, can now be easily removed. |
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3. Safety Recommendations and Hazard Warnings |
Master-Sep is highly flammable - keep away from sources
of ignition; do not smoke.
Master-Sep irritates the eyes, respiratory organs, and
skin. Vapors may cause dizziness and sleepiness. Close
the bottle after each use and provide adequate
ventilation in the working place. Avoid contact with
eyes and skin. |
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3.1 Safety clothing |
If required, wear safety gloves.
Handling
For safe handling of the Master-Sep special separating
liquid, please follow instructions in Safety Data Sheet. |
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3.2 Contact |
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In case of contact with eyes, immediately rinse with
water and seek medical assistance |
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4. Storage and Durability |
Master-Sep must be stored at temperatures of 15º to 25º
C.
Protect against heat and open flames. Keep the bottle
sealed.
Any possible dulling (e.g. due to extended storage under
cool conditions) does not indicate that the separating
effect is decreasing. It can be reversed by shortly
heating up to 30º C. |
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4.1 Proper disposal |
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Please follow the instructions provided in the Material
Safety Data Sheet. |
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5. Other Information |
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This information contained in these instructions for use
is always updated according to the latest knowledge and
experience. Therefore, we recommend that you read these
instructions again before using a new package. These
instructions refer to Master-Sep, Item #520 002 90. |
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MATERIAL SAFETY DATA SHEET
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Product Name: MASTER SEP
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Product Code: 520 002 90
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| Before using this product, please read and follow these
instructions carefully. |
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1. Composition/Information on ingredients
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Composition: Prepared from fatty acids.
Dissolved in alcohol/hydrocarbon mixtures.
Description:
Hazardous Substances:
Name: CAS-No. Content Hazard symbols Hazard codes
Propan-2-ol 67-63-0 >50% Xi R 36-67
2-Methylpropan-1-ol 78-83-1 5 - 10% Xi R 10 - 37/38 - 41
Kerosene 8008-20-6 10 - 20% Xn R 65 |
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2. Possible Hazards |
Hazard Identification: Xn
Hazard R- odes: R 10 Flammable.
R 36/37/38 Irritates eyes, respiratory organs and skin.
R 65 Hazardous to health; may cause damage to the lungs
when swallowed.
R 67 Vapors may case daze and drowsiness. |
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3. First aid procedures: |
General Information: Change contaminated clothes immediately.
Skin contact: Remove contaminated clothes, wash skin with plenty of
water and soap.
Inhalation: Provide fresh air for affected person.
Eye contact: Flush with pure water for at least 15 minutes
immediately; seek medical attention.
Ingestion: Rinse mouth immediately and drink plenty of water; avoid
vomiting.
Risk of aspiration! Seek immediate medical attention. |
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4. Fire fighting procedures: |
Suitable extinguishing media: Foam, water, CO2, dry
extinguishing media.
Unsuitable extinguishing media: |
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5. Accidental release procedures: |
Precautions - individuals: Do not inhale vapors.
Fresh air supply in closed rooms must be ensured.
Precautions - environment: Observe local environment regulations.
Cleaning up spillage: After spillage, absorb with absorbing material
and add into well-sealed containers. |
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6. Storage and handling: |
Storage: Store container firmly sealed.
Store in a dry and well-ventilated room at 15º to 25º C.
Handling: Follow precautions and careful handling just
like with all chemicals.
Keep away from food, drinks, and feeding materials.
Keep away from ignition sources - do not s moke. |
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7. Exposure control/individual protection |
Additional information on the layout of technical
systems/plants: Work only with explosion-proof equipment
and low-sparkling tools.
Constituents with limits relevant to the work are:
CAS-No. Description Type Value Unit
67-63-0 Propan-2-ol TLV 200 ml/m3
or 500 mg/m3
78-83-1 2-Methylpropan-1-ol TLV 100 ml/m3
or 310 mg/m3
Individual:
Respiratory protection: Required equipment in the
presence of vapors/aerosols: filter A.
Protection-hands: Protective gloves.
Protection-eyes: Safety goggles.
General procedures with respect to individual hygiene:
Proceed just like when handling chemicals. Do not eat,
drink, and smoke when working with this product. |
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8. Physical and chemical properties |
Appearance: Low-viscous liquid.
Color: Colorless, transparent.
Odor: Slight bitter almond scent.
Data relevant to safety:
Melting point/interval: Approx. -90º C to -100º C.
Boiling point/interval: Approx. 82 C.
Flash point (ºC): cc: at 12º C
oc: at 15º C.
Ignition point: at 425º C.
Explosion limits: LEL: 2.0 vol. %
UEL: 12 vol. %.
Density (20º C): Approx. 0.78 g/cm3
Viscosity: Low-viscous.
pH-value: Weakly acid (pH 5).
Solubility in: Soluble in toluene, THF; petroleum ether.
Solubility in water: Partly soluble. |
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9. Stability and reactivity |
Conditions to avoid: If used in accordance with the
instructions, the product is stable.
Materials to avoid: Cyclopropane; strong oxidants; oleum;
potassium-tert.-butoxide.
Avoid contact with alkaline and earth alkaline metals as
well as with finely dispersed metals.
Hazardous decomposition products: Prolonged exposure to
air may result in the formation of explosive peroxides. |
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10. Toxicological information |
Toxicological tests:
Acute toxicity (LD50): Type Value Species
Oral 4396 - 5500 mg/kg Rat (Propan-2-ol)
Oral 2460 - 3350 mg/kg Rat (2-Methylpropan-1-ol)
Irritating effect:
Skin: Degreasing effect including risk of subsequent
inflammations.
Eyes: Strong irritating effect; risk of corneal
clouding.
When inhaled or swallowed: Low toxic effect (hemolysis,
liver and renal dysfunction)
In case of aspiration, pulmonary edema and pneumonia may
result.
Additional toxicological inf: Experience has shown that
this product can be safely used if it is handled in
accordance with the instructions and if the general
rules for work hygiene are observed. |
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11. Ecological information |
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According to experience gained so far, this product does
not have any negative effects on the environment. |
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12. Disposal consideration |
Product: This product can be burned in a suitable
combustion plant/system.
Soiled container: Combustion as special waste. |
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13. Export regulation |
Overland Transport ADR/IDR and GGVS/GGVE (Germany):
GGVS/GGVE class: 3 No./Letter: 5 b
ADR/RID class: 3 No./Letter: 5 b
Designation of the material in this product:
1993 Flammable, liquid material
(Isopropanol, 2-Methylpropan-1-ol, Kerosene)
By Air (ICAO-TI and IATA-DGR):
ICAO/IATA class: 3 UN/ID No.: 1993
Packaging group: II
Correct Technical Designation: Flammable, liquid
material
(Isopropanol, 2-Methylpropan-1-ol, Kerosene)
Sea Transport IMDG/GGV See:
IMDG class: 3.3 UN No.: 1993
Correct Technical Designation: Flammable, liquid
material
(Isopropanol, 2-Methylpropan-1-ol, Kerosene) |
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14. Regulatory information |
Labeling: According to the Ordinance on Hazardous
Materials (GefStoffV).
Hazard symbol and identification: Xn Hazardous to health
Hazard codes: R 10 Flammable
R 36/37/38 Irritates eyes, respiratory organs, and skin.
R 65 Hazardous to health: may cause damage to lungs when
swallowed.
R 67 Vapors may cause daze and drowsiness.
Safety codes: S 7/9 Keep container tightly sealed in an
adequately ventilated room.
S 13 Keep away from food, drinks, and feeding materials.
S 16 Keep away from sources of ignition - do not smoke.
S 24/25 Avoid contact with skin and eyes.
S 37/39 When working with this product, wear suitable
gloves and safety goggles. |
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15. Other information |
Data sheet completed by: Research & Development Dept. -
Bredent (Germany).
This Material Safety Data Sheet is provided by way of
guide for the use of our product and is correct to the
best of our knowledge.
However, we can't offer any guarantee as to its accuracy
or exhaustiveness. All chemicals may present unforeseen
risks and should be used with caution.
We cannot guarantee that the risks referred above are
the only risks present. The final choice of the
application of a product is thus the sole responsibility
of the user. |
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Drill hole diameter of 1.5mm
Master-Pin Information Sheet
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