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Double-Side TPU-Coated PET Film – Purpose-Built for Membrane Switch Manufacturing
Double-Side TPU-Coated PET Film – Purpose-Built for Membrane Switch Manufacturing
Double-Side TPU-Coated PET Film – Purpose-Built for Membrane Switch Manufacturing
Double-Side TPU-Coated PET Film – Purpose-Built for Membrane Switch Manufacturing
Double-Side TPU-Coated PET Film – Purpose-Built for Membrane Switch Manufacturing
Double-Side TPU-Coated PET Film – Purpose-Built for Membrane Switch Manufacturing
Specifications
Model Number :
HT15
Haze :
Below 1.3%
MOQ :
1 square meter
Delivery Time :
7 working days
Elongation at Break :
MD 154% / TD 110%
Payment Terms :
T/T,Western Union
Supply Ability :
500000 square meter
Price :
USD 0.166~1.316
Light Transmittance :
≥92%
Packaging Details :
Tray / Carton
Brand Name :
XH
Insulation Resistance :
≥100 MΩ @ 100V DC
Certification :
ISO 13485, ISO 9001, IATF 16949, FCC, SGS
Heat Shrinkage :
MD 1.0% / TD 0.0%
Place of Origin :
Shenzhen, China
Tensile Strength :
MD 163 MPa / TD 180 MPa
Description
Double-Side TPU-Coated PET Film – Purpose-Built for Membrane Switch Manufacturing
For membrane switch producers, every layer matters. The PET substrate must hold fine screen-printed legends, survive repeated dome actuations, stay dimensionally stable through thermal lamination, and present a flawless optical surface - especially for backlit panels.
The HT-15 series double-side TPU-coated PET film addresses all these demands. By combining a premium PET core with functional TPU coatings on both sides, it delivers the adhesion, formability, and consistency that membrane switch production lines require.
Five Key Advantages for Membrane Switch Processing
1. Superior Ink Adhesion - Screen & UV Inks Stay Put
The dual TPU coatings dramatically improve anchor strength for both fine-mesh screen-printing and UV-curable inks.
  • Cross-Cutting Test: 100/100 Pass (JIS K5600) - no flaking, even after aggressive rubbing.
  • Ideal for symbols, borders, and functional legends that must survive millions of actuations and exposure to sweat, detergents, or oils.
2. Excellent Dome-Forming Performance - No Cracking, Consistent Tactile Feel
  • Elongation at Break: 154% (MD) / 110% (TD) - provides sufficient stretch for embossed dome formation without tearing.
  • Balanced mechanical properties ensure uniform dome height and good spring-back, giving end-users a crisp, consistent click feel.
  • Low heat shrinkage (MD ≤1.0%, TD ≈0.0%) prevents dome-position drift during thermal processes.
3. Dimensional Stability - Precise Layer-to-Layer Registration
With TD shrinkage near 0.0%, the HT-15 film minimizes transverse movement during printed circuit layer drying, spacer lamination, and overlay bonding. This drastically reduces misalignment between upper and lower circuit traces - a critical factor for electrical reliability in multi-layer membrane switches.
4. Outstanding Optical Clarity - Essential for Backlit & Window Displays
  • Light Transmittance: ≥92% (JIS K7136)
  • Haze: <1.3% (JIS K7136)
  • Low rainbow stripes - eliminates unwanted interference fringes, ensuring uniform LED/LCD backlighting and crystal-clear viewing windows.
5. High Cleanliness with Dual Protective Liners - Minimized Surface Defects
  • Manufactured under strict cleanliness control to reduce pinholes, gels, and foreign particles that cause print white-spots.
  • Comes with green PE protective film (top, easy identification) and clear PE liner (bottom) - safeguards against scratches during storage, handling, and die-cutting.
Product Structure & Specifications
Tailored for Membrane Switch Lines
Structure Green PE protection / Double-side TPU-coated PET / PE protection
Model HT-15 Series
Thickness Options 100 μm (most common for membrane switches), 125μm, 188μm, 250μm
Standard Width 1020 mm
Standard Length 200 m/roll
Custom narrow slitting and special thicknesses available upon request.
Key Data Sheet - Membrane Switch Focus
Property Unit Typical Value Standard Relevance for Membrane Switches
Light Transmittance % ≥92 JIS K7136 Uniform backlight brightness
Haze % <1.3 JIS K7136 Clear window areas
Heat Shrinkage (MD/TD) % 1.0 / 0.0 JIS C2318 Accurate multi-layer registration
Tensile Strength (MD/TD) MPa 163 / 180 ASTM D882 Punches cleanly without tearing
Elongation at Break (MD/TD) % 154 / 110 ASTM D882 Dome stretching without cracks
Cross-Cutting Test -- 100/100 Pass JIS K5600 Legends remain intact after wear
Primary Applications
Directly for Your Production Line
  • Home appliance membrane switches - washing machines, microwave ovens, AC panels
  • Industrial HMI panels - machine tools, instrumentation, rugged controls
  • Medical device keypads - requiring sanitization resistance and reliable print
  • Smart home & remote controls - slim profiles with responsive domes
  • Backlit membrane switch modules - leveraging high transmittance for uniform glow
Important Processing Note
All technical data are typical laboratory values and not guaranteed specifications. We strongly recommend that membrane switch manufacturers run full pilot trials - covering screen-printing, curing, dome forming, and lamination - before mass production. Our technical team is available to assist with thickness selection and process parameter recommendations.
Upgrade Your Membrane Switch Quality - Order a Sample Today
Choose HT-15 PET film for sharper legends, more consistent domes, higher lamination yields, and fewer field failures.
Request a free sample or speak with our membrane switch application specialist - we understand your process and can help you select the right grade quickly.
Double-Side TPU-Coated PET Film – Purpose-Built for Membrane Switch Manufacturing

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Product Detail
Model Number :
HT15
Haze :
Below 1.3%
MOQ :
1 square meter
Delivery Time :
7 working days
Elongation at Break :
MD 154% / TD 110%
Payment Terms :
T/T,Western Union
Contact Supplier
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Double-Side TPU-Coated PET Film – Purpose-Built for Membrane Switch Manufacturing
Double-Side TPU-Coated PET Film – Purpose-Built for Membrane Switch Manufacturing
Double-Side TPU-Coated PET Film – Purpose-Built for Membrane Switch Manufacturing

Shenzhen XH Technology Co., Ltd.

Verified Supplier
5 Years
guangdong, shenzhen
Since 2012
Business Type :
Manufacturer, Seller
Main Products :
Acrylic Sheet, Clear Acrylic Sheets, Coloured Acrylic Sheet
Total Annual :
100M-500M
Employee Number :
220~280
Certification Level :
Verified Supplier
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