Industry Overview
Bulk Moulding Compound (BMC), also known as Dough Moulding Compound (DMC) or premix, is a fibre-reinforced thermoset or thermoplastic composite material used for manufacturing moulded components with controlled mechanical, electrical, chemical and fire-resistant properties. Fibre lengths commonly range from 1/2 inch to 2 inches (6 to 50 mm), with longer fibres generally providing higher tensile strength and shorter fibres supporting the moulding of more complex shapes.
Premix is produced by combining resin, fillers, reinforcing fibres and other additives through an intensive mixing process to form a fibrous putty-like material that can be charged directly into a moulding press. The development of glass fibre rovings in 1949 and subsequent advances in resin systems, internal release agents, chemical thickening agents and thermoplastic additives contributed significantly to the development of modern premix technology. Sisal, glass fibre and chopped nylon reinforcements have each played important roles in the historical development of high-volume applications.
BMC differs from Sheet Moulding Compound (SMC) primarily in its manufacturing method, form and fibre characteristics. BMC offers excellent flow characteristics, while reinforced moulding compounds can provide strength, electrical insulation, chemical resistance and improved surface quality. Applications include electrical equipment, switchgear, appliances, telecommunications, electronics and automotive components.
Cost Estimation
| Particulars | Value |
|---|---|
| Plant Capacity | 1900 KG./Day |
| Land & Building (16,000 sq.ft.) | Rs. 96 Lac |
| Plant & Machinery | Rs. 70 Lac |
| Working Capital for 2 Months | Rs. 1.24 Cr |
| Total Capital Investment | Rs. 3.08 Cr |
| Rate of Return | 32% |
| Break Even Point | 57% |
Content Index
- INTRODUCTION
- PREMIX
- BENEFITS OF BULK MOULDING COMPOUNDS INCLUDE
- PROPERTIES
- PROPERTIES OF REINFORCED MOLDING COMPOUNDS
- USES AND APPLICATIONS
- 1. ELECTRICAL INDUSTRY
- (I). SWITCH GEAR
- (II). ELECTRICAL APPLIANCES, TOOLS AND OTHERS
- TELECOMMUNICATION & ELECTRONIC INDUSTRY
- AUTOMOTIVE INDUSTRY
- SHEET MOULDING COMPOUND
- PROPERTIES SMC
- SMC COMPOUNDS
- B.I.S. SPECIFICATIONS
- MARKET OVERVIEW OF MOULDING COMPOUND
- SHEET MOLDING COMPOUND AND BULK MOLDING COMPOUND
- MARKET - SNAPSHOT
- MARKET POSITION
- GROWTH OPPORTUNITIES FOR GLOBAL SHEET MOULDING COMPOUND MARKET
- FURTHER DEVELOPMENT OF SHEET MOULDING COMPOUNDS AND EXAMPLES OF USE
- PRESENT MANUFACTURES/SUPPLIERS
- RAW MATERIALS
- RESIN
- ADVANTAGE OF SMC
- GUIDE OF SHEET MOULDING COMPOUND
- THE COMPRESSION MOLDING PROCESS
- CUSTOM FORMULATED SHEET AND BULK MOULDING COMPOUND
- SHEET MOLDING COMPOUNDS (SMC)
- SHEET MOLDING COMPOUND OFFERS SUPERIOR STRENGTH AND ELECTRICAL INSULATION
- BULK MOLDING COMPOUNDS (BMC)
- BULK MOLDING COMPOUND OFFERS EXCELLENT FLOW CHARACTERISTICS
- FORMULATION OF MOULDING COMPOUND
- TYPICAL DOUGH MOULDING COMPOUND (DMC)
- CLASSICAL SMC FORMULATION
- OTHER FORMULATION
- FORMULATION OF SMC
- FORMULATION OF DMC
- FORMULATION OF BMC
- FORMULATION OF SMC
- DMC COMPOUNDING METHOD
- PREMIX
- MIXING AREA
- MIXERS
- EXTRUDING
- FORMULATION
- STANDARD GENERAL PURPOSE PREMIX (DMC)
- MIXING PROCEDURE FOR STANDARD GENERAL PURPOSE PREMIX
- PROCESS FLOWSHEET
- FORMULATION OF LOW-SHRINK SYSTEM PREMIX (DMC)
- FORMULATION FOR BULK MOULDING COMPOUND PREMIX WITH LOW-SHRINK RESIN AND CHEMICAL THICKNESS (BMC COMPOUND)
- MIXING PROCEDURE
- FORMULATION FOR VARIOUS GRADES DMC
- FORMULATION-1
- GENERAL PURPOSE GLASS REINFORCED DMC
- FORMULATION-2
- ARC RESISTANT DMC
- FORMULATION-3
- FIRE - RETARDANT ALUMINIUM HYDRATE FILLED PREMIX (DMC)
- SHEET MOULDING COMPOUND (SMC)
- FORMULATION - 1
- FORMULATION-2
- PREMIX
- A. IN COWLES DISSOLVER (OR SIMILAR MIXER) BLENDS:
- MIXERS
- EXTRUDING
- SHEET MOLDING COMPOUND
- PLANT LAYOUT
- PRINCIPLES OF PLANT LAYOUT
- PLANT LOCATION FACTORS
- EXPLANATION OF TERMS USED IN THE PROJECT REPORT
- PROJECT IMPLEMENTATION SCHEDULES
- ADDRESSES OF PLANT AND MACHINERY SUPPLIERS
- SUPPLIERS OF SHEET MOULDING COMPOUND MACHINE
- SUPPLIERS OF RAW MATERIALS
- SUPPLIERS OF POLYESTER RESIN
- SUPPLIERS OF BENZOYL PEROXIDE
- SUPPLIERS OF ZINC STEARATE
- SUPPLIERS OF CALCIUM CARBONATE
- SUPPLIERS OF GLASS FIBRES
- OTHER MACHINERY SUPPLIERS ADDRESSES
- SUPPLIERS OF SIGMA MIXER
- SUPPLIERS OF PLASTIC MIXER
- SUPPLIERS OF BUCKET ELEVATOR
- SUPPLIERS OF CHOPPING MACHINE
- SUPPLIERS OF EXTRUDERS
- SUPPLIERS OF LABORATORY TESTING EQUIPMENTS
Appendix
- 01. PLANT ECONOMICS
- 02. LAND & BUILDING
- 03. PLANT AND MACHINERY
- 04. OTHER FIXED ASSESTS
- 05. FIXED CAPITAL
- 06. RAW MATERIAL
- 07. SALARY AND WAGES
- 08. UTILITIES AND OVERHEADS
- 09. TOTAL WORKING CAPITAL
- 10. TOTAL CAPITAL INVESTMENT
- 11. COST OF PRODUCTION
- 12. TURN OVER/ANNUM
- 13. BREAK EVEN POINT
- 14. RESOURCES FOR FINANCE
- 15. INSTALMENT PAYABLE IN 5 YEARS
- 16. DEPRECIATION CHART FOR 5 YEARS
- 17. PROFIT ANALYSIS FOR 5 YEARS
- 18. PROJECTED BALANCE SHEET FOR (5 YEARS)
Frequently Asked Questions
Bulk Moulding Compound (BMC) is a fibre-reinforced moulding material used to manufacture composite components through moulding processes. It generally consists of a thermoset or thermoplastic resin matrix, chopped reinforcing fibres, fillers and functional additives. BMC is prepared as a dough-like mass that can be used after mixing and is suitable for producing components with controlled mechanical, electrical, chemical and fire-resistant properties. Its flow characteristics also allow it to fill mould cavities containing relatively complex shapes.
BMC and SMC mainly differ in their manufacturing method, physical form, fibre content and fibre length. BMC is produced as a dough-like or bulk material and is particularly valued for its flow characteristics and ability to mould complex shapes. SMC is manufactured in sheet form and is commonly used where sheet-based compression moulding is appropriate. Both materials can use similar basic ingredients, including resin, fillers, reinforcing fibres and additives, but their formulations and processing characteristics are adapted to their respective manufacturing and moulding requirements.
BMC manufacturing commonly uses a resin matrix, reinforcing fibres, fillers and various functional additives. The report specifically discusses polyester resin, glass fibres, calcium carbonate, zinc stearate and benzoyl peroxide among the materials associated with moulding compound formulations. Other additives may be selected according to requirements such as shrinkage control, release characteristics, flame resistance, electrical performance and surface quality. The exact formulation depends on the intended grade, processing method and performance requirements of the finished moulded component.
BMC is widely suited to electrical, electronic, telecommunications and automotive applications where composite performance and mouldability are required. The report identifies applications including switchgear, electrical appliances, tools and other electrical components, as well as automotive products. Depending on formulation, reinforced moulding compounds can provide mechanical strength, electrical insulation, chemical resistance, dimensional performance and fire-related properties. These characteristics make BMC useful for moulded components where conventional materials may not provide the required combination of performance and manufacturing flexibility.
BMC is manufactured by intensively mixing the resin, fillers, chopped reinforcing fibres and selected additives to produce a homogeneous dough-like compound. The report covers mixing areas, mixers, extrusion and specific compounding procedures for different DMC and BMC grades. The formulation and mixing sequence must be controlled to achieve the desired fibre distribution, flow characteristics and processing behaviour. Once prepared, the compound can be weighed into suitable charges and processed in a moulding press to manufacture the required components.
Glass fibre reinforced BMC can provide improved mechanical strength, chemical resistance, electrical insulation and other desirable performance characteristics. The reinforcing fibres contribute to the structural properties of the moulded component, while the resin, fillers and additives can be selected to provide additional functional characteristics. The report also describes developments in glass fibre reinforcement and resin technology that improved the suitability of premix materials for large-area and demanding electrical and chemical components. Formulation must nevertheless be matched to the specific application and required performance.
A BMC manufacturing plant requires appropriate consideration of raw material handling, mixing, fibre preparation, extrusion where applicable, storage, quality control, utilities, plant layout and material movement. Equipment selection should correspond to the intended formulations and production requirements. The report includes sections covering plant layout principles, plant location factors, project implementation schedules and suppliers of mixers, extruders, chopping machines, material handling equipment and laboratory testing equipment. Proper process flow and segregation of raw materials, compounding and finished materials are important for efficient and consistent production.
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