Table of Contents
ULTRACAL 30 is a plaster cement tooling material, which creates a hard, uniform and dimensionally accurate piece. Used for slush casting latex and production of master models.
What is the difference between Hydrocal and Ultracal?
Ultracal 30 is more dense and harder than Hydrocal and is advertised by USG as a tool making plaster. Hydrocal is a casting plaster that hold detail well. If you need more specific help, please call Scott at Capital Ceramics 801-466-6471.
What is Ultracal made of?
USG ULTRACAL® 30 gypsum cement is a traditional casting gypsum cement, specially formulated for close tolerance tooling.
How long does Hydrocal take to cure?
If you want the plaster to be thoroughly cured before de-molding (for figurines, etc.), wait until it feels warmish and dry. This can take up to 24 hours or more for a thick surface.
How long does Ultracal take to set?
ULTRACAL 30 Set Time is 25-35 minutes. De-Mold Time 60-80 minutes. Mix Ratio: 38 parts water to 100 parts plaster.
Is Ultracal waterproof?
Ideal for splash-casting molds and models for phenolic, polyester and epoxy resins, USG Ultracal 30 Gypsum Cement is water soluble – there is no need for organic solvents for cleanup. USG Ultracal 30 Gypsum Cement is noncombustible. When properly used, USG Ultracal 30 Gypsum Cement is easy to work with.
What is gypsum cement?
Gypsum is a mineral and is hydrated calcium sulfate in chemical form. Gypsum plays a very important role in controlling the rate of hardening of the cement. Gypsum is added to control the “setting of cement”. If not added, the cement will set immediately after mixing of water leaving no time for concrete placing.
Is hydrostone waterproof?
Quick setting, lightweight white plaster in water resistant bag. Hydrostone is 40% to 50% harder than casting plaster and works much like plaster in mixing, pouring, and setting.
What is Ultracal plaster?
USG Ultracal® Brand 30 Gypsum Cement is designed for the patternmaking industry as the ultimate gypsum cement tooling medium. Ideal for splash-casting molds and models for phenolic, polyester and epoxy resins, USG Ultracal 30 Gypsum Cement is water soluble – there is no need for organic solvents for cleanup.
What UltraCal 30?
USG ULTRACAL 30 is a low-absorption gypsum cement for case molds. Specially made for close-tolerance tooling – provides the greatest hardness, accuracy and freedom from efflorescence of any gypsum cement on the market.
What color is Hydrocal?
It is very white in color and exhibits setting expansion twice that of Moulding Plaster or Pottery Plaster.
Is Metapex radiopaque?
The material shows good resorbable properties, is radiopaque in nature, does not set to a hard mass, is easily inserted and removed from the canals, is harmless to permanent tooth germs and gets resorbed within few weeks when extruded from the apex.
What is Hydrocal used for?
What is Hydrocal Used For? Hydrocal is stronger than plaster but is as easy to use. It is the perfect choice for making a solid and hollow casting of figurines, general sculptures, and commercial casts. Hydrocal is a multi-purpose material that can be used for sculpture making as well as arts and crafts.
What is Ultracal used for?
UltraCal XS allows the operator to deliver the correct amount of Ca(OH)2 to the working length, preventing any material from being inadvertently extruded past the open apex into the periradicular tissues, especially if a chronic or large lesion is present.
Is plaster of Paris same as gypsum?
Difference between Gypsum and Plaster of Paris (PoP) Plaster of Paris is made from Gypsum. Gypsum contains calcium sulfate dihydrate (CaSO4·2H2O) and plaster of Paris contains calcium sulfate hemihydrates (CaSO4·0.5 H2O). Gypsum is a naturally occurring mineral whereas Plaster of Paris is manufactured.
How do you mix Hydrocal?
The mix ratio for use as a bore coating is approximately 1.5 (powder) :1 (water) by volume. The mix ratio for use as a high temperature (HT) reinforced coating is approximately 2.5 (powder) :1 (water) by volume. For slurry application, add powder to water and mix until desired consistency. Use the slurry immediately.
What is hydrostone plaster?
Hydrostone is a U.S. Gypsum product which is considerably harder than regular plaster of Paris, and lacks the period of plasticity in its setting curve which allows plaster to be worked directly. Don’t mix this with your hand, like you can with regular plaster of Paris.
How do you mix Ultracal?
MIX RATIO: The manufacture recommended mix-ratio of White Hydro Cal is: 45 parts water to 100 parts Hydro Cal by weight. The average setup time is 25-35 minutes when manually mixed. Please note that parts can be in grams, ounces or pounds etc.
What elements make up gypsum?
Gypsum is calcium sulfate (CaSO4). Refined gypsum in the anhydrite form (no water) is 29.4 percent calcium (Ca) and 23.5 percent sulfur (S). Usually, gypsum has water associated in the molecular structure (CaSO4·2H2O) and is approximately 23.3 percent Ca and 18.5 percent S (plaster of paris).
Does Hobby Lobby have resin molds?
Create a whole houseful of gorgeous resin lovelies using embellishments (like glitter, flowers and metal leaf) and molds. We carry a wide variety of molds—gemstone, coaster, simple shapes and more—but you can make your own from almost anything!
How do you cast with gypsum?
How to cast gypsum or plaster stone Add water to the bucket. Add plaster slowly until plaster stop absorbing water. Let it stay in bucket 5-10 min (do not mix) Mix carefully with hands and pour to the mold immediately. Shake mold from side to side to release an air pockets for face for the stone.
What is plaster of Paris?
Plaster of paris, quick-setting gypsum plaster consisting of a fine white powder (calcium sulfate hemihydrate), which hardens when moistened and allowed to dry. Known since ancient times, plaster of paris is so called because of its preparation from the abundant gypsum found near Paris.
How strong is Hydrocal?
Hydrocal is 30% to 40% harder than casting plaster and works much like plaster in mixing, pouring, and setting.
