About Us         Download          Blog         Contact
banner-bg REQUEST A QUOTE

China Leading Sheet Moulding Compound(SMC) Supplier

Sheet moulding compound (SMC) or sheet moulding composite is a ready to mould glass-fibre reinforced polyester material primarily used in compression moulding.
banner-mobile (1)

What is Sheet Moulding Compound?

Sheet moulding compound (SMC) or sheet moulding composite is a ready to mould glass-fibre reinforced polyester material primarily used in compression moulding.
Sheet moulding compound (SMC) is manufactured by dispersing long strands (usually >1") of chopped fiber (commonly glass fibers or carbon fibers on a bath of thermoset resin (commonly polyester resin, vinyl ester or epoxy resin)). The longer fibers in SMC result in better strength properties than standard bulk moulding compound (BMC) products. Also we provide long and continuous fiber or woven roving for extra reinforcement.
 
SMC is usually sold in rolls and then cut into smaller pieces called "loads." In a process called compression moulding, heat and pressure are applied to the charge to create a wide range of products from simple designs to complex components.
smc

How to Produce Sheet Moulding Compound?

The slurry reservoir dispenses a dosed amount of the specified resin slurry onto a plastic carrier film. The carrier film passes through a chopper, which cuts fibres into the surface. Once these fibres have drifted through the depth of the resin paste, another layer is added on top to sandwich the glass. These sheets are compacted and loaded into a winder for storing the product as it matures. The carrier film is then removed and the material is cut into various shapes. The shape of the charge and the mould are determined according to the desired shape and the charge is then added to the mould. Heat and pressure are applied to the charge and once fully cured, the charge is removed from the mould and becomes the finished product. Fillers can both reduce weight, change physical properties and often increase strength. Challenges in the production process include wetting the filler, which can consist of glass microspheres or neatly aligned fibres rather than randomly chopped fibres; adjusting the mould temperature and pressure to provide the right geometry; and adjusting the chemistry to suit the end use.

Why Do Our Customers Choose Sheet Moulding Compound

sound-absorption

 

Excellent mechanical properties

 
line
 
SMC material has extremely high strength and stiffness, enabling it to withstand high levels of pressure and tension. This gives it a significant advantage in the manufacture of components that are subjected to heavy loads.
  

versatile-(1)

 

Excellent electrical properties

 
line
 
SMC materials have excellent insulating properties and arc resistance, making them ideal for the manufacture of electronic components and electrical parts. In addition, its low dielectric constant and low dielectric loss make it the material of choice in the communications field.

absorption

 

Excellent chemical resistance

 
line
 
SMC materials have good resistance to most acids, alkalis, salts and chemical solvents, and can be used for a long time in harsh chemical environments, showing good stability.
   
 
 

feather-(3)

 

Lightweight characteristics

 
line
 
Compared with some traditional materials, SMC material has a lighter weight, which helps to reduce the overall weight of the product, especially in the aviation, automotive and other industries, this feature is particularly important.
  

dumbbell

 

Easy processing and moulding

 
line
 
SMC materials have good processing performance, and can be processed by various processes such as mould pressing and hot press moulding, which can produce products with complex shapes and precise dimensions.
  
 

protection-(3)

 

Environmentally friendly material

 
line
 
SMC material can be recycled and reused, will not cause pollution to the environment, in line with the modern green development concept.
   
 
 

Our Sheet Moulding Compound And Their Applications

SMC JL-8002 for cast shower tray, door panels, building material

Item

Standard

Value

Density( g/cm³)

GB1463-88

1.8

Glass fiber content(%)

GB/T15568-95

22

Water absorption(%)

GB1462-88

≤0.2

Unit Weight (KG/m2)

/

4

Tensile Strength(Mpa)

GB1447-83

55

Flexural Strength(Mpa)

GB1449-83

120

Impact Strength( kJ/m²)

GB1451-83

50

HDT(℃)

GB1634-79

≥200

SMC JL-6006 for Truck parts

Item

Standard

Value

Density( g/cm³)

GB1463-88

1.8

Glass fiber content(%)

GB/T15568-95

30

Water absorption(%)

GB1462-88

≤0.2

Linear Shrinkage (%)

GB/T15568-95

0.12

Tensile Strength(Mpa)

GB1447-83

100

Flexural Strength(Mpa)

GB1449-83

220

Impact Strength( kJ/m²)

GB1451-83

100

HDT(℃)

GB1634-79

≥200

SMC JL-5001 for Power distribution box,Electric meter box,communication box

Item

Standard

Value

Density( g/cm³)

GB1463-88

1.8

Glass fiber content(%)

GB/T15568-95

22

Water absorption(%)

GB1462-88

≤0.2

Tensile Strength(Mpa)

GB1447-83

56

Flexural Strength(Mpa)

GB1449-83

155

Impact Strength( kJ/m²)

GB1451-83

55

Fire Retardancy(CLASS,mm)

UL94

V0

SMC JL-6006 for Truck parts

Special-equipment

Item

Standard

Value

Density( g/cm³)

GB1463-88

1.75

Glass fiber content(%)

GB/T15568-95

33

Water absorption(%)

GB1462-88

≤0.2

Linear Shrinkage (%)

GB/T15568-95

0.1

Tensile Strength(Mpa)

GB1447-83

160

Flexural Strength(Mpa)

GB1449-83

300

Impact Strength( kJ/m²)

GB1451-83

120

HDT(℃)

GB1634-79

≥200

Sheet Moulding Compound FAQ

  • Q Does JLON provide SMC material samples?

    A Yes. JLON offers free standard SMC samples (5-10kg per grade), customers only need to bear the international freight cost (DHL/FedEx/UPS available). Custom JLON SMC samples have a refundable fee (refunded upon formal order), freight collected, and all samples are shipped within 3 working days.

  • Q What are the delivery and payment terms for JLON SMC?

    A JLON supports all INCOTERMS 2020 terms (EXW/FOB/CIF/DAP/), with FOB and CIF as the most commonly used for international trade. Payment terms: T/T (30% deposit in advance, 70% balance before shipment), irrevocable L/C at sight; flexible terms for long-term JLON SMC cooperative customers.

  • Q What is the MOQ and lead time for JLON SMC?

    A JLON SMC MOQ: 500kg per grade for standard types, 1000kg for custom grades. Lead time: 7-10 working days for standard JLON SMC, 10-15 working days for custom JLON SMC; flexible lead time is negotiable for large orders (≥5000kg).

  • Q What international certifications does JLON SMC have?

    A JLON SMC has passed global authoritative certifications: UL94, RoHS, REACH, ISO9001, ISO14001. Automotive grade JLON SMC meets IATF16949 standard; electrical grade JLON SMC complies with IEC 60695 standard. Original certification documents are provided for customs clearance and inspection.

  • Q What molding process is suitable for JLON SMC material?

    A JLON SMC is mainly processed by hot compression molding with stable results: molding temperature 130-150℃, molding pressure 15-30MPa, holding time 30-60s/mm. It enables one-time molding of complex parts with high production efficiency and consistent quality of JLON SMC finished products.

  • Q What is the standard specification of JLON SMC sheets?

    A Standard JLON SMC sheets: width 1000/1250/1500mm, thickness 3-6mm (all adjustable), length customized by order (roll/sheet available). Custom specifications are fully supported for bulk JLON SMC orders.

  • Q Can JLON SMC be customized according to requirements?

    A Yes, JLON supports full customization of SMC sheets. We adjust resin formula, glass fiber content, flame retardancy, color and hardness according to your actual molding process, product performance and application needs to create tailored JLON SMC products.

  • Q What grades of JLON SMC do you supply?

    A JLON provides four core customizable grades: Automotive grade (high rigidity & impact resistance), Electrical grade (high insulation & flame retardant), Building grade (super weather & corrosion resistance) and Custom grade (tailored formula for special molding and performance demands).

  • Q What core performance parameters does JLON SMC have?

    A JLON SMC boasts tensile strength ≥100MPa, flexural strength ≥180MPa, heat distortion temperature ≥180℃ and shrinkage ≤0.2%. Electrical grade JLON SMC has dielectric strength ≥20kV/mm, with UL94 V0 flame retardancy; all performance can be customized for different application scenarios.

  • Q What is JLON SMC material?

    A JLON SMC (Sheet Molding Compound) is a high-performance thermosetting E-glass fiber composite with unsaturated polyester resin as the base. It features high strength, low shrinkage, corrosion resistance and easy compression molding, and is widely applied in automotive, electrical and construction fields worldwide.

Consult Your Sheet Moulding Compound Expert

We help you avoid the pitfalls to deliver the quality and value your PVC Foam Core need, on-time and on-budget.
Get In Touch
info@jloncomposite.com
+8619306129712
NO.2-608 FUHANYUAN,TAIHU RD, CHANGZHOU,JIANGSU ,CHINA
Products
Application
Quick Links
COPYRIGHT © 2024 CHANGZHOU JLON COMPOSITE CO., LTD. ALL RIGHTS RESERVED.