Custom Formulated Bulk & Sheet Molding Compounds - Technology
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View The SMC/BMC Product Matrix |
Technology
The most common thermoset resins are polyester, vinyl ester, polyurethane, and epoxy. Each of these resins has its own price and performance characteristics, so selection is based on the functional and cost requirements of the application. For instance, design engineers might choose vinyl ester resin for corrosion-resistant products, epoxy resin for high-strength applications, or polyester resin when good overall performance and cost are the driving factors.
Bulk Molding Compounds (BMC) and Sheet Molding Compounds (SMC) are both fiber reinforced materials, typically utilizing glass strand fibers of varying lengths. SMC uses slightly longer length fibers than BMC, and typically has a higher percentage of reinforcement fibers than BMC. Fiber Lengths range from 1/32-inch in BMC up to 1-inch in some SMC's, resulting in various strength characteristics which can be customized for individual needs. IDI also offers carbon fiber reinforcement for applications that require exceptional strength coupled with severe weight restrictions in our Structural Thermoset line of products.
For more information, on Sheet Molding Compounds and Bulk Molding Compounds.
Custom Formulated Sheet (SMC) & Bulk Molding Compounds (BMC) |
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Material Performance |
Material Description |
SMC Series |
BMC Series |
General Purpose |
General purpose composite materials with a wide range of applications. Suitable applications are typically structural in nature with no flammability requirements. |
S10 |
B10 |
Heat and Corrosion Resistant |
Composite materials intended for use in sanitary, cookware, appliance and indirect food contact applications. |
S20 |
B20 |
Low Shrink Materials |
Low shrink composite materials. Well suited for applications requiring shrink <0.1%. |
S30 |
B30 |
UV Stable |
These materials are suitable for use in applications requiring superior colorfastness & physical property retention upon exposure to UV and visible light. |
S51 |
B51 |
Low Flame & Smoke Toxicity |
These materials provide low flame & smoke toxicity in accordance with ASTM E162 and E662 standards. |
S52 |
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Corrosion Resistant |
These composites are typically unsaturated polyester or epoxy vinyl ester materials formulated to meet the strict performance requirements of pumps, pipe flanges & underground applications that are impacted by corrosive environments. |
S90 |
B90 |
Dielectric & Flame Resistant |
DielectriteTM is suitable for electrical applications requiring a composite material that possesses a UL Yellow card and flammability performance from UL94 HB, V-0 & 5VA. These materials can be found in Underwriters Laboratory file E53587. |
E200 Series |
40 Series |
Electrical Insulators & Flame Resistant |
These high strength Rosite BMC composites are suitable for use in electrical applications requiring materials that possesses dielectric properties and flammability performance from UL94 HB, V-0 & 5VA. These materials can be found in Underwriters Laboratory file E53587. |
3000 Series 6000 Series |
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Flame Resistant & Low Smoke Toxicity |
This composite is certified as a low smoke toxicity material with a UL94 V-0 flame rating. It's physical characteristics have been certified to meet several US Municipal Transit Authority specifications. |
46-16-60 |
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