Release Liner Manufacturer · Since 2009
PEK Release Paper
PE-laminated release paper (PEK) with low silicone migration, for precision electronics, FPC and optical protective film. Release force 0.12-0.18 N/25mm, adjustable.
- Silicone-coated release paper & PET film liners from one Shanghai factory.
- Release force tuned 3-80 g/25mm (±3g) to your converting line.
- Custom widths, colors and formats — OEM slitting and rewinding.
- Export-verified supply since 2009, customs-documented worldwide.
01 / Product Overview
PEK Release Paper Specifications
PE-laminated release paper (PEK) with low silicone migration, for precision electronics, FPC and optical protective film. Release force 0.12-0.18 N/25mm, adjustable.
Product Specifications
ColorTo be confirmed (catalogue)
WidthCustom slitting, multiple widths
Release Force0.12-0.18 N/25mm (approx. 12-18 g/25mm), adjustable
GSMTo be confirmed (catalogue)
MaterialPE-laminated base paper (PEK), silicone-coated
FeatureLow silicone migration
02 / Product Details
PEK Release Paper Materials & Details
Detailed product information, material, options and specification notes.
Shanghai Yingshi (est. 2009) manufactures PEK release paper: base paper laminated with PE on one or both sides, then silicone-coated on one or both faces. The PE layer forms a smooth sealing surface and blocks silicone migration, which keeps sensitive adhesives and optical films clean. Factory-direct, with release-force tuning and slitting to your line.
| Brand | SH-YINGSHI |
|---|---|
| Material | PE-laminated base paper (PEK), silicone-coated |
| Color | To be confirmed (catalogue) |
| Width | Custom slitting, multiple widths |
| Release Force | 0.12-0.18 N/25mm (approx. 12-18 g/25mm), adjustable |
| Gram Weight | To be confirmed (catalogue) |
| Applications | Precision electronics; flexible printed circuits (FPC); optical protective film; double-sided tape converting |
| Industries | Electronics assembly; Adhesive; Optical film |
| OEM/ODM | Yes |
| Buying Guide | Tell us whether your process needs one or two PE-laminated sides, and the release level your adhesive requires. On optical and FPC work, silicone migration matters as much as release force. |
| FAQ | Q: What makes PEK different from plain release paper? A: The PE layer blocks silicone migration and gives a smoother, sealed surface. Q: Release force options? A: 0.12-0.18 N/25mm, adjustable by grade. Q: Single or double sided silicone? A: Both are available, single or double PE lamination. |
03 / Related Products
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One product inquiry can expand into a broader multi-SKU sourcing program.
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View Product04 / Production Flow
Typical Production and Packing Flow
Process visibility helps buyers connect a product inquiry to actual manufacturing capability.
01
Base Inspection
Incoming base paper and film checked for gram weight, moisture and defects.
02
Silicone Coating
Five-roller coating line applies silicone at controlled coat weight.
03
Curing
Thermal curing crosslinks the silicone for stable release performance.
04
Property Testing
Release force and residual adhesion tested per batch.
05
Slitting & Rewinding
Custom widths slit and rewound to your core specs.
06
Final Check & Packing
Appearance, coding and export packing before shipment.
05 / Factory Strength
Factory and Supplier Evidence
Prove the supplier behind the product so buyers can move from one SKU into a larger OEM discussion with confidence.
Shanghai Yingshi Paper & Plastic Materials Co., Ltd.
Yingshi manufactures silicone-coated release liners at its Shanghai base: five-roller silicone coating, slitting and rewinding, and in-house QC for release force and residual adhesion.
01Source factory: coating, slitting and QC under one roof — no middleman.
02Release force tuned 3-80 g/25mm (±3g) for labels, tapes, medical and die-cutting.
03Paper (glassine, CCK, PE-coated) and PET film liners from one supplier.
04Export record verified by customs data — serving buyers worldwide since 2009.
Factory photos, certifications and customer photos are trust evidence. Keep the "Image Pending" placeholder until real images are ready; do not delete this section. Replace the placeholder with real images once assets are available.
06 / Buying Guide
PEK Release Paper Buying Guide
How to compare product, packaging and supplier requirements before sending a serious RFQ.
Tell us whether your process needs one or two PE-laminated sides, and the release level your adhesive requires. On optical and FPC work, silicone migration matters as much as release force.
07 / FAQ
PEK Release Paper FAQ
Short answers for buyers, SEO and GEO, not a thin one-line FAQ block.
What makes PEK different from plain release paper?
The PE layer blocks silicone migration and gives a smoother, sealed surface.
Release force options?
0.12-0.18 N/25mm, adjustable by grade.
Single or double sided silicone?
Both are available, single or double PE lamination.
Start Your PEK Release Paper Inquiry
Send your quantity, packaging and target market. We reply with pricing, MOQ and lead time.
Product: PEK Release Paper
Email: sales@yingshi.com