Double-sided adhesive tape DuploCOLL® OC

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Overview
Highly transparent, optically clear pressure-sensitive adhesive tapes designed for bubble-free lamination and bonding of printed electronics and capacitive touch sensors. Suitable for bonding on moisture-outgassing plastics such as PMMA (polymethylmethacrylate) and PC (polycarbonate). Provide permanently high transparency, are acid-free and enable a bubble-free appearance at temperatures up to 105 °C. Excellent for encapsulating print edges of common screen printing inks.

Key application areas

• Lamination of printed electronics
• Bonding and assembly of plastic components for HMI (human machine interface) devices
• Touch sensors and capacitive touch panels
• Encapsulation of printed edges (screen printing inks)

Substrates

• Polycarbonate (optionally including corona pre-treatment)
• Polymethylmethacrylate (PMMA) (optionally including corona pre-treatment)
• Polyethylene

Lamination

• Fully or semi-automatic lamination processes
• Typical process: first to flexible substrate, then to rigid substrate

Conditioning (example)

• Autoclave possible
• Recommendation: component temperature 40–60 °C, 6 bar, > 20 min

Product portfolio highlight
DuploCOLL® OC double-sided transfer tapes: DuploCOLL 26050 OC and DuploCOLL® 26150 OC, available in two thicknesses (0.05 mm and 0.15 mm). Both feature a transparent polyester film liner and a highly transparent pure acrylic adhesive, engineered for excellent optical clarity and durability.

Performance benefits

• > 98% optical transmission
• Low haze and low yellowness index
• Excellent resistance to moisture-outgassing plastic substrates (PC / PMMA)
• High durability under sunlight exposure without air bubble formation or yellowing
• Long-term durability at temperature exposure < 105 °C without bubble formation or yellowing
• Acid-free and compatible with conductive inks
• Good adaptability to print steps
• Convertible and packagable under clean room practices

Bubble control and optical stability
Designed to avoid the formation of air bubbles during and after application; remains bubble-free and free of haze/yellowing after temperature exposure compared with conventional OCA tapes. This maintains optical brilliance, backlighting visibility and touch sensor sensitivity.

Examples of application fields

• Front panel ovens and temperature-exposed assemblies
• Printed overlay films on HMI devices
• Encapsulation and lamination in printed electronics assemblies

Caractéristiques / spécifications techniques

• Type: Optically clear pressure-sensitive adhesive tapes (OCA)
• Transparency: > 98% optical transmission
• Temperature resistance: bubble-free appearance up to 105 °C
• Material compatibility: PC, PMMA, PE (with optional pre-treatment)
• Available product variants: DuploCOLL 26050 OC (0.05 mm) and DuploCOLL® 26150 OC (0.15 mm)
• Liner: transparent polyester film liner
• Adhesive: pure acrylic, acid-free
• Recommended conditioning: 40–60 °C, 6 bar, > 20 min (autoclave)
• Clean room converting and packaging: supported