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Brief of Product
In order to keep coating layer from contacting air directly, protecting steel substrate from rusting and increase coating layer corrosion resistance effect, surface of steel coil shall be applied with color coating and baking to attain covering and insulation effect, beautification and extend the service life of steel materials.

Product Features

  1. Extending service life of products:
    Color coating is for protecting steel substrate and for promoting corrosion control effects. Subject to the environment, the different coating combination promotes environmental resisting functions (such as heat resistance, corrosion resistance, humidity resistance, bending resistance, weathering resistance, impact resistance, acid / alkali resistance, chemical resistance and pollution resistance) to offer ultra durability.
  2. Better forming ability:
    Coating Layer has good bending ability and in high speed forming, it maintains good forming ability and would not cracking or peel off. The coating could be adjusted to meet for different substrate general use, drawing, deep drawing or lock forming, structural use and other purposes.
  3. Variable colors:
    With different glosses and colors, it displays beautiful appearance that allow for new product designs, diversified creative elements and higher living quality.
    The smooth and even Protective Film form by coating on coated surface shall be:
    • formed film with good bonding ability with steel substrate.
    • resistance against sunlight, air, moisture, acid rain, grease.
    • It shall have the feature of mopping resistance, abrasion resistance and impacting resistance.

 

Prepainted Sketch {2 coat and 2 bake system}

 

Frequent Type of Coating

Type of Coating
(Top Coat)

Brief Introduction

Polyester(PE) PE is well-adhesive to the substrate and its coated products is formability。The Products are normally used at better environment circumstances.
Silicone Modified Polyester(SMP) The excellent color maintenance and heat resistance properties of Silicone resin could improve the weatherability and modify the heat resistance, chalky, resistance of PE coating.
Polyvinylidene Fluoride(PVDF) PVDF got very strong bonding so it has very good corrosion resistance and color maintenance. Also excellent in heat resistance, UV resistance and chemical resistance. PVDF offer long-term protection function to the substrate and could offer variety of colors and special metallic coating for decoration color steel.

 

Application

  • Building Materials
    Exterior decoration: Roof, Exterior decoration of building, Door, Door panel, Garage door panel, Fast Roll-Up, Fencing wall, Metal window frame, Metal roof tile, Pre-Fabric house, Gutter.
    Interior decoration: Wall, Partition, Sandwich panel, Ceiling, Lighting equipment material, Light steel frame, Decorative material.
    Equipment structure: Ventilation duct, Floor deck, Light weight form steel, Construction scaffolding.
    Furniture: Steel furniture, Curtain slide rail, Slide rail, Wardrobe.
  • Automobile
    Equipment: Interior decoration, Car shed, Car interior lamp cover.
  • Transportation Machinery & Equipment
    Railroad vehicle: Interior decoration board, Ceiling
    Equipment: Ship interior decoration, Truck / Reefer car exterior panel, Car body exterior / interior panel.
  • Electrical Machinery
    Kitchen: shell of refrigerator, Kitchen collecting chest panel, Kitchen ventilator, Dish washer, Dryer, Small appliance
    Air Regulator Equipment: Shell of air conditioner, Shell of water heater, Side panel and supporting bracket of solar energy panel, Outer shell of exterior unit of heat pump
  • Home Appliance / Others: Washing machine, Lighting equipment, Stereo, TV set, Video recorder, Power supply shell, Distribution panel
  • Others
    Others: Sign board, Black (White) board, Tool kits box, Thunder arrestor cover, Water tower, Acoustic wall, Silo, Stable, Staple house.

 

Type symbols table of prepainted hot dip galvanized steel

Spec. JIS CNS

ASTM

Type of substrate GI GI GI
Specification CGCC CGCC CS Type A , B , C
    FS
CGCD1~3 CGCD1~3 DS/DDS
    EDDS
    Grade 33 (Gr.230)
CGC340 CGC340 Grade 37 (Gr.255)
    Grade 40 (Gr.275)
CGC400 CGC400  
CGC440 CGC440 Grade 50 (Gr.340)
CGC490 CGC490  
    Grade 55 (Gr.380)
    Grade 60 (Gr.410)
    Grade 70 (Gr.480)
CGC570 CGC570 Grade 80 (Gr.550)

 

Type symbols table of prepainted hot dip 55% Al-Zn coated steel

Spec. JIS CNS   ASTM
Type of substrate GL GL GL
Specification CGLCC CGLCC CS Type A , B , C
    FS
CGLCD CGLCD DS/DDS
CGLCDD CGLCDD EDDS
CGLC340 CGLC340  
    Grade 33(Gr.230)
CGLC400 CGLC400 Grade 37(Gr.255)
    Grade 40(Gr.275)
CGLC440 CGLC440  
CGLC490 CGLC490 Grade 50(Gr.340)
    Grade 55(Gr.380)
    Grade 60(Gr.410)
CGLC570 CGLC570  
    Grade70(Gr.480)
    Grade80(Gr.550)

 

Type symbols and mechanical property of prepainted hot dip galvanized steel

Type Symbol of prepainted hot dip galvanized Steel
JIS G3312
Min. Yield Point
 N/mm2
Min. Tensile Strength
 N/mm2
Min. Elongation% Uses
Nominal Thickness mm (t)
0.25≤t<0.4 0.4≤t<0.6 0.6≤t<1.0 1.0≤t<1.6
CGCC --- --- --- --- --- --- Commercial
CGCH --- --- --- --- --- --- Full hard
CGCD1 --- 270 --- 34 36 37 Drawing
CGC340 245 340 20 20 20 20 Structural
CGC400 295 400 18 18 18 18 Structural
CGC440 335 440 18 18 18 18 Structural
CGC490 365 490 16 16 16 16 Structural
CGC570 560 570 --- --- --- --- Structural

 

ASTM Designation Min. Yield Point
ksi(MPa)
Min. Tensile Strength
ksi(MPa)

Min. Elongation%
Uses
A653(M) CS TYPE A,B,C --- --- --- Commercial
A653(M) FS TYPE A,B --- --- --- Forming
A653(M)DDS --- --- --- Drawing
A653(M) SS Grade33(230) 33(230) 45(310) 20 Structural
A653(M) SS Grade37(255) 37(255) 52(360) 18 Structural
A653(M) SS Grade40(275) 40(275) 55(380) 16 Structural
A653(M) SS Grade50(340) 50(340) 65(450) 12 Structural
A653(M) SS Grade60(410) 60(410) 70(480) 10 Structural
A653(M) SS Grade80(550) 80(550) 82(570) --- Structural

※A653(M) Indicates in Metric System

 

Type symbols and mechanical property of prepainted hot dip 55% Al-Zn coated steel

Type Symbol of prepainted
hot dip 55% Al-Zn Coated Steel 
JIS G3322
Min. Yield Point  N/mm2 Min. Tensile Strength  N/mm2 Min Elongation % Uses
Nominal Thickness mm (t)
0.25≤t<0.4 0.4≤t<0.6 0.6≤t<1.0 1.0≤t<1.6
CGLCC (205) (270) (20) (21) (24) (24) Commercial
CGLCD --- 270 --- 27 31 32 Drawing
--- 245 340 20 20 20 20 Structural
CGLC400 295 400 16 17 18 18 Structural
CGLC440 335 440 14 15 16 18 Structural
CGLC490 365 490 12 13 14 16 Structural
CGLC570 560 570 --- --- --- --- Structural

 

ASTM Designation Min. Yield Point
ksi(MPa)
Min. Tensile Strength
ksi(MPa)
Min. Elongation % Uses
A792(M) CS TYPE A,B,C --- --- --- Commercial
A792(M) FS --- --- --- Forming
A792(M) DS --- --- --- Drawing
A792(M) SS Grade33(230) 33(230) 45(310) 20 Structural
A792(M) SS Grade37(255) 37(255) 52(360) 18 Structural
A792(M) SS Grade40(275) 40(275) 55(380) 16 Structural
A792(M) SS Grade50(340) 50(340) 65(450) 12 Structural
A792(M) SS Grade60(410) 60(410) 70(450) 10 Structural
A792(M) SS Grade80(550) 80(550) 82(570) --- Structural

※A792(M) Indicates in Metric System

 

 

Hot rolled steel coil(HR)/Cold rolled steel coil(CR)/Hot dip galvanized steel coil(GI)/Hot dip 55% Al-Zn coated steel coil(GL)/Prepainted hot dip galvanized steel coil(PPGI)/Prepainted hot dip 55% Al-Zn coated steel coil(PPGL)/Prepainted Aluminum coil(PPAL)/Prepainted stainless steel coil.

Hua Ming Steel Co., Ltd. No.272, Erh Sheng 2nd Rd.,Chien Cheng Dist., Kaohsiung City 80654, Taiwan
TEL:+886-7-331-3111 FAX:+886-7-330-9686 E-mail:huaming1@ms81.hinet.net
Shuo Yuan Enterprise Co., Ltd. No.25, Bengong 3rd Rd., Benjhou Industrial Park,Gangshan Dist., Kaohsiung City 82059, Taiwan TEL:+886-7-622-0070 FAX:+886-7-622-9250