PET Film Coated Steel Roll Forming Material Guide: Coil Sizes, Protection & Uses

PET Film Coated Steel Roll Forming Material

1. Overview of PET Film Coated Steel in Roll Forming

PET film coated steel is a metal substrate (typically galvanized, cold rolled, or stainless steel) laminated with a thin polyethylene terephthalate (PET) film. This film provides surface protection, enhanced appearance, and improved durability during processing and installation.

In roll forming, PET film coated steel is widely used for decorative panels, appliance components, wall cladding, ceiling systems, and high-end architectural finishes.

Compared to painted steel, PET film offers scratch resistance, consistent finish quality, and removable protection during processing.

2. Material Composition & Structure

PET film coated steel consists of:

Steel base (GI, CR, or stainless steel)
Optional coating (zinc or paint layer)
Adhesive bonding layer
PET film layer (protective or decorative)

Layer Structure

Steel core
Zinc or primer layer
Adhesive layer
PET film (10–100 microns typical)

3. Available Coil Specifications

Thickness Range

0.3mm – 1.5mm (excluding film)

Coil Width

600mm – 1250mm

Coil Weight

2 tons – 8 tons

Coil ID / OD

ID: 508mm / 610mm
OD: up to 1500mm

Tolerance

High surface quality
Tight thickness tolerances

4. Mechanical Properties

Depends on base material:

Yield Strength: 140 – 350 MPa
Tensile Strength: 280 – 500 MPa
Elongation: 20% – 35%
Hardness: 90 – 160 HB

5. Coating Types

PET Film Types

Clear protective film
Colored film
Patterned / decorative film
High-gloss PET
Matte PET

Film Thickness

Typically 10 – 100 microns

6. Surface Finishes

Gloss finish
Matte finish
Brushed effect
Patterned / printed designs
Mirror-like finish (high gloss PET)

7. Common Roll Forming Applications

Decorative wall panels
Ceiling systems
Appliance panels
Furniture components
Architectural cladding
Interior design panels

8. Advantages of PET Film Coated Steel

Excellent surface protection
Scratch resistance during forming
High-quality appearance
Consistent finish
Easy to remove protective film
Wide range of decorative options

9. Disadvantages / Limitations

Film can peel if mishandled
Limited high-temperature resistance
Not suitable for heavy forming
Adhesion issues if poorly manufactured
Higher cost than standard coated steel

10. Roll Forming Machine Considerations

Roll Tooling

Polished or chrome rollers required
Surface protection is critical

Speed

10–30 m/min

Lubrication

Not recommended

Cutting

Clean shear with protected blades

Common Issues

Film peeling
Surface scratches
Adhesion failure

11. Common Problems in Production

PET film peeling during forming
Scratches from rollers or guides
Air bubbles under film
Delamination issues
Edge damage affecting appearance

12. Pricing Guide

Typical global pricing:

Low: $800–$1100 per ton
Medium: $1100–$1600 per ton
High: $1600–$2200+ per ton

Factors affecting price:

Film type
Film thickness
Base material
Finish quality

13. Comparison with Other Materials

PET Film vs PPGI

PET = better surface protection
PPGI = more durable long-term coating

PET Film vs PVC Coated Steel

PET = thinner film
PVC = thicker and more durable

PET Film vs Laminated Steel

Very similar category
PET is one of the most common laminates

14. Best Industries Using PET Film Coated Steel

Interior construction
Appliance manufacturing
Furniture production
Architectural design
Commercial fit-outs

15. How to Choose PET Film Coated Steel

Choose PET Film Coated Steel When:

Surface finish is critical
Scratch protection needed
Decorative applications
Interior use

Avoid When:

Outdoor exposure required
Heavy forming needed
High temperature environments

16. FAQ Section

What is PET film coated steel?

Steel coated with a thin PET plastic film.

Is PET film permanent?

It can be permanent or removable.

Can it be roll formed?

Yes, with proper setup.

Does the film protect the surface?

Yes, from scratches and damage.

Is it suitable for outdoor use?

Typically no, mainly indoor applications.

17. Machine Matcher Section

We supply roll forming machines for all material types including PET film coated steel.

Custom-built machines to your profile
New machines built to specification
Global delivery available
UK and USA technical support

Contact:
Machine Matcher
Sales & Technical Team

Quick Specs

Thickness
0.3–1.5mm

Yield Strength
140–350 MPa

Coil Width
600–1250mm

Coil ID
508 / 610mm