Bego WiroFine User manual

Page 1

WiroFine

Shock-heat or conventionally heatable, phosphate-bonded precision investment material for partial denture frames.

WiroFine, phosphate-bonded dental casting investment material: Type 2 (for the production of complete or partial dentures or other removable restorations), Class 2 (recommended for burning out during conventional or rapid heating up)

Safety instructions Please read and follow the instructions in the insert

“Safety instructions and general instructions for BEGO investment materials”! This material contains quartz and cristobalite which causes lung damage when breathed in during prolonged or repeated exposure. We recommend sufficient ventilation or wearing a FFP2 protective mask as suitable protection measures.

Danger

WiroFine can be heated up rapidly (“shock heat”) or conventionally. The possible insertion temperatures are room temperature approx. 21 °C / 70 °F (conventional) or 700°C to 1000 °C / 1290 °F to 1830°F (shock heat).



General instructions

Duplication

Liquid for shock and conventional preheating:



Before mixing, rinse out the clean mixing bowl with water and wipe off.



Ideal processing at 21 - 23 °C, higher processing temperatures reduces the working time.



First put in liquid and add powder, mix thoroughly with a spatula for at least 15 seconds.



Suitable for one-piece casting technique.



Duplication can be carried out in gel moulds or in silicone moulds.



Fill duplication mould on the vibrator and then remove it immediately from the vibrator.

Mixing

BegoSol

K (Frost-sensitive! Storage and transport temperature: +5°C to + 35 °C/41°F to 95 °F).

Liquid only for conventional preheating:

(storage and transport temperature: – 10 °C/ 14 °F to +35 °C/ 95 °F).

BegoSol

Mixing bowls that are not clean or are dry withdraw moisture from the investment material!

Processing width 21 °C/70°F: approx. 3.5 min Processing width 23 °C / 73 °F: approx. 3.0 min

Then mix in a mixing unit for 60 seconds under vacuum conditions, as far as possible. (Processing without mixing unit: mix for 2 min on the vibrator.)

When working with a pressure compaction unit, silicone moulds and the duplicate model must be made under the same conditions (2 – 4 bar)! Recommendation: Allow to set under pressure for 10 minutes. Duplicate in gel moulds only without pressure!

Mixing ratio 100 g Powder : 20 ml Mixing liquid

Investment

for 2 duplicate models WiroFine Liquid Aqua dest. Mixing liquid Total Concentration

Liquid: BegoSol

Liquid: BegoSol® ** 1 x 400 g 40 ml 40 ml 80 ml 50 %

* for shock and conventional preheating ** only for conventional preheating



In case that a higher expansion is recommended, the model can be produced with a higher liquid-concentration of

80 %. The liquid-concentration for mould/ring remains unchanged at 70 %!

Removal from mould after 45–60 minutes after 30–60 minutes

Surface treatment Durol Durofluid* Durol E

Drying 30 minutes 10 minutes 45 minutes (250 °C/500°F) (70 –100°C /180–210 °F) (150 °C /300 °F)

Dipping/spraying briefly 3 times spray with thin film long 1 time (approx. 2 seconds) 5 minutes (approx. 4 seconds)

Subsequent drying 5 minutes (250°C/500 °F) (70–100 °C/180–210 °F) 1 minute (150 °C/ 300°F)



Please note: Only those models fabricated in gel moulds need immersion hardening with Durol or Durol E.

Models duplicated with silicone only have to be dried for 10 mins. before applying Durofluid.



Before investing, prepare the wax-up with Wiropaint plus fine investment material or Aurofilm wetting agent

(please follow the processing instructions for the products).



Fill mould ring on the vibrator and then take away from vibrator immediately. Recommendation: Allow mould ring to set

under pressure for 10 minutes.



Remove the mould ring 10 minutes after investment !

Mixing

K * 1 x 400 g 56 ml 24 ml 80 ml 70 %

Gel

(Castogel®, Wirodouble®, WiroGel® M)

Mixing ratio 100 g Powder : 20 ml Mixing liquid

Silicone (Wirosil®, Wirosil

* do not use for duplication with gel

® plus

)

for 1 mould WiroFine Liquid Aqua dest. Mixing liquid Total Concentration

Liquid: BegoSol

Liquid: BegoSol® ** 1 x 400 g 40 ml 40 ml 80 ml 50 %

* for shock and conventional preheating ** only for conventional preheating

K * 1 x 400 g 56 ml 24 ml 80 ml 70 %

Page 2

WiroFine

Shock-heat or conventionally heatable, phosphate-bonded precision investment material for partial denture frames.

Preheating

Conventional preheating Shock heat

Setting after investment at least 30 min 20 min

Insertion temperature * room temperature (21 °C) 700 –1000 °C / 1290–1830 °F

Holding levels 250 °C/500°F (5 °C/min/9°F/min) ** – 570 °C /1060 °F (7 °C/min / 12° F/min)** –

Final temperature 950 °C– 1050 °C / 1740 °F –1920 °F

Holding times 30–60 min (depending on size and number of moulds)

** Shock heat: After insertion you can heat up to the final temperature immediately. ** Heating rate only applies to furnaces with computer control.

Risk of injury in connection with shock heating. Caution: Danger of darting flame!

Place all moulds in the furnace within 10 seconds – then keep the furnace door closed for 15 minutes!

After casting

Data

Availability and recommendations

After casting, allow the moulds to cool down until warm to the touch in a protected and designated location;

do not quench in water! Investment materials contains quartz. Do not inhale dust! Danger of lungs harms (silicosis, lung cancer). To avoid dust during deflasking, place the moulds in water after they have cooled down completely after casting until they are thoroughly moistened.

Expansion curve WiroFine

Processing time at 21 °C / 70 °F approx. 3.5 min

Characteristic material values in accordance with DIN EN ISO 15912

3,5

2,5

(70 % BegoSol® K)

Beginning of setting (Vicat time) approx. 6.0 min

Compressive strength (after 2 hours) approx. 11 MPa

Linear thermal expansion approx. 0.8 %

Flowability approx. 140 mm

This product was manufactured according to the specifications of DIN EN ISO 15912 and meets its requirements.

1,5

Expansion curve [%]

0,5

0 10 20 30 40 50 60 70 80 90 100

WiroFine 1 carton 18 kg = 45 400 g bags – REF 54345 1 carton 6 kg = 15 400 g bags – REF 54344 1 carton 6 kg = 30 200 g bags – REF 54348

K 1 bottle = 1000 ml – REF 51120

BegoSol

1 canister = 5000 ml – REF 51121

1 bottle = 1000 ml – REF 51090

BegoSol

1 canister = 5000 ml – REF 51091

[%]

Castogel® 52052 (6 kg) Wirosil® 52001 (2 kg) Durol E 52148 (1000 ml) Wirodouble WiroGel

Tel. +49 421 2028-380 www.bego.com

Whether given verbally, in writing or by practical instructions, our recommendations for use are based upon our own experience and trials and can only be considered as standard values. Our products are subject to a constant further development. Therefore alterations in construction and composition are reserved.

BEGO Bremer Goldschlägerei Wilh. Herbst GmbH & Co. KG · Wilhelm-Herbst-Str. 1 · 28359 Bremen, Germany · Tel. +49 421 2028-0 · www.bego.com

flask system 52072 (small) Wiropaint plus 51100 (200 ml) 52083 (large) Aurofilm 52019 (100 ml)

52050 (6 kg) Wirosil

M 54351 (6 kg) Wirosil® duplicating Durofluid 52008 (100 ml)

Manufacturer

Date of manufacture

® plus

Article number

Batch number

54854 (2 kg) Durol 52111 (1000 ml)

Use by

Observe the instructions for use

Warning