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40μm No-Residue Cast Polyethylene Film with Uniform Thickness for Electronics Protection

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40μm No-Residue Cast Polyethylene Film with Uniform Thickness for Electronics Protection

MOQ:	1000kg
Price:	N.A.
Standard Packaging:	Export Standard
Delivery Period:	10 working days
Payment Method:	T/T
Supply Capacity:	50 tons per day

Detail Information

Product Description

Detail Information

Place of Origin

China

Brand Name

Model Number

CPE40W

Material:

LDPE Or Blended PE

Color:

White

Surface Finish:

Double-sided Glossy, One Side Matte One Side Glossy, Or Double-sided Matte.

Thickness:

30μm~300μm

Web-Width:

Up To 2600mm

Minimum Order Quantity:

1000kg

Price:

Packaging Details:

Export Standard

Delivery Time:

10 working days

Payment Terms:

Supply Ability:

50 tons per day

Highlight:

40μm Cast Polyethylene Film

No-Residue Cast PE Film

Uniform Thickness High Density Polyethylene Film

Product Description

Cast Polyethylene Film - 40μm Protective Film for Electronics

Our 40μm cast polyethylene film is engineered for electronics protection with no-residue performance, uniform thickness, excellent flexibility, and stable processing characteristics. This soft, smooth film delivers reliable protection for sensitive electronic components.

Manufacturing Process

The production of cast polyethylene film involves precise raw material proportioning, melt extrusion, casting, cooling and setting, traction and stretching, edge material recycling, corona treatment, and final winding and slitting to produce flat, uniform film products.

Key Product Features

Uniform thickness distribution for consistent performance
High transparency and smooth surface finish
Excellent heat sealability with wide temperature range
Low internal stress for superior dimensional stability
Good toughness and flexibility
No-residue formulation for electronics protection
Stable processing characteristics

Cast PE Film vs Blown PE Film Comparison

Comparison Dimension	Cast Polyethylene Film	Blown PE Film
Thickness Uniformity	Advantage: Small thickness deviation (±5%) due to precise T-die extrusion control	Disadvantage: Larger thickness deviation (±8-10%) affected by blowing process
Transparency & Flatness	Advantage: High transparency (90%+) and smooth surface without wrinkles	Disadvantage: Lower transparency with uneven, wrinkled surface
Internal Stress	Advantage: Low internal stress with good dimensional stability	Disadvantage: High internal stress causing warping and deformation
Heat-Sealing Performance	Advantage: Excellent heat-sealing with stable strength and wide temperature range	Disadvantage: Poor heat-sealing with unstable strength and narrow range
Post-Processing Adaptability	Advantage: Good adaptability for corona treatment, printing and lamination	Disadvantage: Relatively poor post-processing adaptability
Production Efficiency	Advantage: High line speed (50-150m/min) with online edge material recycling	Disadvantage: Lower line speed (20-50m/min) with higher material loss

Note: The above advantages and disadvantages are based on conventional production processes. With continuous technology upgrades, the performance gap between both film types is gradually narrowing in some aspects.

40μm No-Residue Cast Polyethylene Film with Uniform Thickness for Electronics Protection 0

40μm No-Residue Cast Polyethylene Film with Uniform Thickness for Electronics Protection 1

Physical Performance Standards & Test Results

Test Item	Unit	Industry Standard	Our Standard	Actual Result	Qualification
Total Thickness	μm	40±5	40±3	39.8	Qualified
Whiteness	%	≥85	≥88	89.1	Qualified
Opacity	%	≥90	≥92	93.0	Qualified
Tensile Strength	MPa	≥16/≥14	≥18/≥16	19.2/17.3	Qualified
Elongation at Break	%	≥310/≥290	≥330/≥310	341/322	Qualified
Heat Sealing Strength	N/15mm	≥8.5	≥10.5	11.3	Qualified
Surface Tension	mN/m	≥36	≥38	39.0	Qualified
Tear Resistance	N	≥13/≥11	≥14/≥12	14.8/12.9	Qualified
Moisture Barrier	g/(m²*24h)	≤5.8	≤5.4	5.2	Qualified
Oil Resistance	-	No swelling/discoloration	No swelling/discoloration/adhesion	No swelling/discoloration/adhesion	Qualified
Hardness	HD	50±5	50±3	49.8	Qualified
Weather Resistance	-	No fading/cracking	Fading ≤2, no cracking/deformation	Fading grade 1, no cracking/deformation	Qualified
Environmental Performance	-	GB 4806.7-2016	No odor, no harmful precipitation	No odor, no harmful precipitation	Qualified

Tags:

Products

MOQ:	1000kg
Price:	N.A.
Standard Packaging:	Export Standard
Delivery Period:	10 working days
Payment Method:	T/T
Supply Capacity:	50 tons per day

Detail Information

Product Description

Detail Information

Place of Origin

China

Brand Name

HSF

Model Number

CPE40W

Material:

LDPE Or Blended PE

Color:

White

Surface Finish:

Double-sided Glossy, One Side Matte One Side Glossy, Or Double-sided Matte.

Thickness:

30μm~300μm

Web-Width:

Up To 2600mm

Minimum Order Quantity:

1000kg

Price:

N.A.

Packaging Details:

Export Standard

Delivery Time:

10 working days

Payment Terms:

T/T

Supply Ability:

50 tons per day

Highlight

40μm Cast Polyethylene Film

No-Residue Cast PE Film

Uniform Thickness High Density Polyethylene Film

Product Description

Cast Polyethylene Film - 40μm Protective Film for Electronics

Manufacturing Process

Key Product Features

Uniform thickness distribution for consistent performance
High transparency and smooth surface finish
Excellent heat sealability with wide temperature range
Low internal stress for superior dimensional stability
Good toughness and flexibility
No-residue formulation for electronics protection
Stable processing characteristics

Cast PE Film vs Blown PE Film Comparison

Comparison Dimension	Cast Polyethylene Film	Blown PE Film
Thickness Uniformity	Advantage: Small thickness deviation (±5%) due to precise T-die extrusion control	Disadvantage: Larger thickness deviation (±8-10%) affected by blowing process
Transparency & Flatness	Advantage: High transparency (90%+) and smooth surface without wrinkles	Disadvantage: Lower transparency with uneven, wrinkled surface
Internal Stress	Advantage: Low internal stress with good dimensional stability	Disadvantage: High internal stress causing warping and deformation
Heat-Sealing Performance	Advantage: Excellent heat-sealing with stable strength and wide temperature range	Disadvantage: Poor heat-sealing with unstable strength and narrow range
Post-Processing Adaptability	Advantage: Good adaptability for corona treatment, printing and lamination	Disadvantage: Relatively poor post-processing adaptability
Production Efficiency	Advantage: High line speed (50-150m/min) with online edge material recycling	Disadvantage: Lower line speed (20-50m/min) with higher material loss

40μm No-Residue Cast Polyethylene Film with Uniform Thickness for Electronics Protection 0

40μm No-Residue Cast Polyethylene Film with Uniform Thickness for Electronics Protection 1

Physical Performance Standards & Test Results

Test Item	Unit	Industry Standard	Our Standard	Actual Result	Qualification
Total Thickness	μm	40±5	40±3	39.8	Qualified
Whiteness	%	≥85	≥88	89.1	Qualified
Opacity	%	≥90	≥92	93.0	Qualified
Tensile Strength	MPa	≥16/≥14	≥18/≥16	19.2/17.3	Qualified
Elongation at Break	%	≥310/≥290	≥330/≥310	341/322	Qualified
Heat Sealing Strength	N/15mm	≥8.5	≥10.5	11.3	Qualified
Surface Tension	mN/m	≥36	≥38	39.0	Qualified
Tear Resistance	N	≥13/≥11	≥14/≥12	14.8/12.9	Qualified
Moisture Barrier	g/(m²*24h)	≤5.8	≤5.4	5.2	Qualified
Oil Resistance	-	No swelling/discoloration	No swelling/discoloration/adhesion	No swelling/discoloration/adhesion	Qualified
Hardness	HD	50±5	50±3	49.8	Qualified
Weather Resistance	-	No fading/cracking	Fading ≤2, no cracking/deformation	Fading grade 1, no cracking/deformation	Qualified
Environmental Performance	-	GB 4806.7-2016	No odor, no harmful precipitation	No odor, no harmful precipitation	Qualified

Tags:

High Density Polyethylene Film

Low Density Polyethylene Film

Oriented Polyethylene Film

Cast Polypropylene Film

Mono Oriented Polypropylene Film

Silicone Release film

PET Release Film

Fluorosilicone Release Liner

Anti Static Film

Non Silicone Release Film

PVA Film

Thermoplastic Urethane Film

PET Laminated Aluminum Foil

Volatile Corrosion Inhibitor Film

BOPP Film

PE PROTECTIVE FILM

40μm No-Residue Cast Polyethylene Film with Uniform Thickness for Electronics Protection

40μm Cast Polyethylene Film

No-Residue Cast PE Film

Uniform Thickness High Density Polyethylene Film

High Density Polyethylene Film,

pe high density film,

High Density Polyethylene Film

Low Density Polyethylene Film

Oriented Polyethylene Film

Cast Polypropylene Film

Mono Oriented Polypropylene Film

Silicone Release film

PET Release Film

Fluorosilicone Release Liner

Anti Static Film

Non Silicone Release Film

PVA Film

Thermoplastic Urethane Film

PET Laminated Aluminum Foil

Volatile Corrosion Inhibitor Film

BOPP Film

PE PROTECTIVE FILM

40μm Cast Polyethylene Film

No-Residue Cast PE Film

Uniform Thickness High Density Polyethylene Film

High Density Polyethylene Film,

pe high density film,