STEEL COILS-THE RAW MATERIAL OF THE ROOFING SHEET

Manufacturer

Thickness

Width

Inner diameter of coil

Weight of coil

Shandong Longfa

Steel PlateCo.,Ltd

0.16-1.2mm

 available from 600-1250mm

Common width: 914/1000/

1200/1219/1250mm

508mm/610mm

2.5-8.0tons

Base plate

Available Zinc Coating / Alu-Zinc Coating(g/m2)

Galvanized Steel coil

Available from 60-275g/m2

Common:  60,80, 100, 120, 160, 180,275

Galvalume Steel coil

Available from 30-150g/m2

Common:  30,40,50, 70, 100, 150

Color System

Produce according to RAL Color System or as per buyer’s color sample.

Painting Thickness

Top surface: 15~25microns;

Bottom surface: 5~8microns.

Category of Painting

Item

Code

Polyester

PE

High-durability polyester

HDP

Silicon modified polyesters

SMP

Polyvinylidene fluoride

PVDF

Painting structure

Top surface

Bottom surface

Primer coating

No coating

1/0

Primer coating

Primer coating

1/1

Primer coating + Finish coating

No coating

2/0

Primer coating + Finish coating

Primer coating or single back coating

2/1

Primer coating + Finish coating

Primer coating + Finish back coating

2/2

Application

Building exterior application

Building interior application

Furniture

Household appliances

Steel windows

Others

 Building industry

 Outdoor application  

Roof, structural balcony, panels, window sills, window frames, gates, garage doors, rolling doors, booths, shutters, watch rooms, makeshift houses, street waiting room (booth), refrigerators, etc.

Indoor application

Room doors, dividing walls, door frames, light house steel structures, sliding doors, screens, ceilings, toilets, interior elevator lobby, stairwayventilating duct, communication pipelines.