What Type of Stone is Die Keen?
Gypsum
Die-Keen® Die Stone is a part of the Gypsum Product line of Modern Materials, used to deliver high strength and optimum expansion for dies, crowns and bridgework. Features & Benefits: Flows easily under vibration as ultrafine, mixed powder. Stacks well without slumping.
How long does Diekeen take to set?
No hardeners or additives are needed. Set time: 10–13 minutes and 0.18% expansion.
How long does silky rock take to set?
Silky-Rock also has a low setting expansion. Working time 3-6 minutes. Initial setting time 10 minutes. Modern Materials Orthodontic Plaster is a Type II, snow white plaster that is ideal for orthodontic casts and study models.
What type of stone is silky rock?
Low expansion die stone gypsum. Silky-Rock is characterized by exceptional hardness and density throughout, and an unusual “silky-smooth” pouring quality that makes it flow freely into any type of impression. It works well with all types of impression materials.
How long does mounting stone take to set?
MOUNTING STONE Working time is 2-3 minutes and initial setting time is 5 minutes.
How long does dental gypsum last?
When the surface of the stone loses its shine (loss of gloss), it can still be shaped for approximately 1 minute before the set time begins….Gypsum Set Time.
| Product | Set Time |
|---|---|
| SATIN STONE | 10 – 13 min. |
| VERI-DIE | 10 – 13 min. |
| VERI-DIE 20 EH | 10 – 13 min. |
| FASTONE | 10 – 12 min. |
Which is the water powder ratio of dental stone?
Typically the water powder ratios for dental stone are 35 milliliters or below, per 100 grams of powder. These more accurate and predictable dental stones are harder and more suitable for procedures like crown and bridge, implants and orthodontic appliances. Lower expansion versions are also great for mounting.
What is the difference between a type IV and type V gypsum products?
IV – Dental stone (high strength); V – Dental stone (high strength, high expansion). Among many dental applications, gypsum is used for making casts on which various types of prosthetic pieces can be constructed.
Is plaster of Paris and dental stone same?
Plaster is a less refined material and is distinguished microscopically by irregular shaped crystals. Plasters typically have higher water powder ratios of 40-50 milliliters per 100 grams of powder. Dental stone is a more refined gypsum and is characterized by regularly shaped crystals.
Is plaster stronger than stone?
Stone is stronger and more expensive than plaster. It is used mainly in making casts for diagnostic purposes and casts for complete and partial denture construction, which require greater strength and surface hardness than that of plaster.
What are the 3 main forms of gypsum?
three forms of gypsum products are typically used pouring up study models::::: Model plater, Dental stone and High strength stone. All three of these forms consist of HEMIHYDRATE crystals. The only differences between the three are seen in sizes shape and porosity of hemihydrate crystals .
What is the strongest gypsum?
C. High-strength stone is the strongest and most expensive of the three gypsum products, and it is used mainly for making casts or dies for crown, bridge, and inlay fabrication.