Wirovest Partial Dentures Investment Material 45x400g Bags. Standard Investment material that is phosphate-bonded and yields particularly good results in the gel-duplication technique. Features high expansion for accuracy of fit and minimal finishing. When mixed with water (for pouring the cylinder), Wirovest exhibits a significantly reduced deflasking hardness which saves time and money.
| Alloy use case | Partial |
|---|---|
| Investment bond | Phosphate |
| Material | Investment |
Product
- Manufacturer
- Bego
- Manufacturer #
- 51046
- Item code
- 011-1007
- UPC / Barcode
- 51046
Catalog path
- Marketplace
- Laboratory
- Category
- Investment & Casting
- Subcategory
- Investments
Ordering
- Status
- Ships in 3 business days
- Weight
- 45.0 lb
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Questions
What is Bego Wirovest 45 X 400 Gm used for?
Wirovest Partial Dentures Investment Material 45x400g Bags.
When does it ship?
In-stock orders placed before 3 PM ET ship the same day; anything not on our shelf ships within 3 business days.Ground shipping is free over $10.
About chrome investment
Chrome investment is the casting investment sold for cobalt-chromium partial denture frameworks, which are cast in a higher melting alloy. The use of higher melting alloys has increased the use of phosphate-bonded investment.
A dental casting investment is a material consisting principally of an allotrope of silica and a bonding agent. The bonding substance may be gypsum, for lower casting temperatures, or phosphates and silica, for higher casting temperatures. In the lost-wax technique a wax pattern is surrounded with a refractory slurry that sets, the pattern is removed by heat, and metal or ceramic is cast into the mold that is left.
ISO 15912 covers casting investment, brazing investment, pressable-ceramic investment and refractory die materials, and classifies them by intended use and by the burn-out procedure the manufacturer recommends.
How the investments and duplicating materials on this shelf differ
- Universal Investment — Phosphate-bonded powder and its mixing liquid, sold for more than one kind of casting.
- Chrome Investment — For partial denture frameworks cast in a higher melting alloy.
- Pressable Ceramic Investment — The mold material for pressed ceramics, not for cast metal.
- Refractory Investment — Material for casts, dies and pegs that must go through the furnace.
- Duplicating Materials & Flasks — Gels, silicones and flasks for copying the master model in investment.
- Duplicating & Die Silicone — A silicone that makes the flexible mould of the master model.
What to look at when choosing an investment
Binder and temperature: gypsum is not chemically stable above 650 °C, so gypsum-bonded investments are typically restricted to castings of conventional gold alloys.
Expansion: high setting expansion has been reported for phosphate-bonded materials, more when they are mixed with a silica sol, the special liquid, than with water. Setting expansion was found to be sensitive to mixing speed and to the liquid to powder ratio.
Strength: investments are brittle and may fracture at clamping points.
Burn-out: ISO 15912 classifies investments by intended use and by the burn-out procedure the manufacturer recommends.
Sources: The Glossary of Prosthodontic Terms, 9th edition (J Prosthet Dent 2017) · ISO 15912:2016, Dentistry — Casting investments and refractory die materials · Diametral tensile strength of phosphate-bonded investment material under four drying methods, 2019 (PMC6685339) · ISO 14356:2024, Dentistry — Duplicating material · Fit of cast removable partial denture frameworks and the storage of wax patterns, 2015 (PMC4678543)
