Colored fiberglass casts are often used for immobilizing injured limbs.
Both fiberglass and plaster casts are applied to injured limbs to immobilize them and allow the bones, ligaments, tendons or muscles to heal after an injury such as a break, sprain or dislocation. They are also applied after surgical procedures including correction of clubfoot and other congenital limb deformities. While fiberglass is usually the material of choice in the United States, plaster casts still are used for orthopedic immobilization.
Differences in Composition
Plaster cast material is made from a type of naturally occurring gypsum known as plaster of Paris that is used to coat fiber bandages. Fiberglass casting tape is made from woven fiberglass that is coated with polyurethane resin.
Differences in Appearance
A plaster cast is smooth and always white as only white plaster of Paris bandages are available. A fiberglass cast is webbed in texture and appearance and it is often colored. Common fiberglass cast colors include blue, pink and green. Both types of casts can be and often are signed and decorated with felt tip markers.
Differences in Weight, Strength and Durability
Fiberglass casts are lighter and stronger than plaster casts. They also last longer as they are more resistant to water damage and wear. However, neither type of cast is waterproof, unless a specific waterproof lining is used with a fiberglass cast.
Porosity, Drying Time and Flexibility
Fiberglass is more porous than plaster, so that a fiberglass cast is often more comfortable to wear. In addition, a fiberglass cast takes 30 minutes to two hours to dry as opposed to up to 48 hours for a plaster cast. However, plaster is easier to mold than fiberglass.
Price
Plaster is less expensive than fiberglass. Some insurance plans may not cover the cost of a fiberglass cast.
Related posts
Plaster of Paris is one of three types of plaster. The other two are lime plaster, made from calcium hydroxide and sand, and cement plaster, a combination of plaster, sand, Portland cement and wat...
Casting plaster is often used to make molds.Plaster of Paris is the most recognized name for casting plaster, but the two terms are used interchangeably. There are several different types of plast...
Fish can be cast with plaster of Paris.You can make a replica of your prize fish by using plaster of Paris to capture its details. With a clay mold, the image of your fish will be incised for plas...
Plaster of Paris is used to fill and create molds for sculptures.Plaster of Paris is a mixture of powdered and heat-treated gypsum. When mixed with water, the substance hardens into a smooth, soli...
Plaster of Paris is a form of gypsum. The first uses of plaster date back at least 9,000 years to Anatolia (present-day Turkey) and Syria. The Egyptians used it 5,000 years ago as a mortar for mon...
