There are many silicone elastomers available at our service unit. The silicones
being used are medical grade and food grade. The medical grade silicones are most
commonly used for fabrication of maxillofacial prostheses. The food grade is also
claimed by the manufacturer to be used in maxillofacial field. Both types of silicone
are approved for external use only.(4) The most popular product used at our service is
A-103 (Silastic® MDX4-4210), which is a pourable two-component RTV, platinumcured,
high strength medical grade silicone rubber. The advantages of this product
include room temperature cured and can be heat accelerated, good thick section cured,
excellent dielectric properties, essentially no shrinkage when cured at room
temperature, physical and electrical stability, high elongation, improved tear strength.
The disadvantage of this product is its high cost.
There are many silicone elastomers available at our service unit. The siliconesbeing used are medical grade and food grade. The medical grade silicones are mostcommonly used for fabrication of maxillofacial prostheses. The food grade is alsoclaimed by the manufacturer to be used in maxillofacial field. Both types of siliconeare approved for external use only.(4) The most popular product used at our service isA-103 (Silastic® MDX4-4210), which is a pourable two-component RTV, platinumcured,high strength medical grade silicone rubber. The advantages of this productinclude room temperature cured and can be heat accelerated, good thick section cured,excellent dielectric properties, essentially no shrinkage when cured at roomtemperature, physical and electrical stability, high elongation, improved tear strength.The disadvantage of this product is its high cost.
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