DuploCOLL® 50118 – the high-performance foam tape engineered for the most demanding decorative film surfaces in window and profile applications.
Modern window profiles are more than a structural element – they are a design statement. As decorative films become increasingly sophisticated, with wood-grain textures, fine structures, and advanced polymer coatings, the adhesive tape holding everything together faces a growing challenge: surfaces that simply weren't designed to be bonded. With DuploCOLL® 50118, Lohmann delivers a targeted answer.
The Challenge: Critical Surfaces Need a Smarter Adhesive
Laminated PVC window profiles have long been considered particularly difficult substrates for adhesive bonding. Modern decorative films – whether PVDF, PMMA, PUR-coated, or uPVC – combine visual sophistication with chemical surface characteristics that resist standard adhesives. Achieving reliable, durable adhesion on these surfaces requires more than a general-purpose tape.
Self-adhesive flat profiles are widely used to bridge construction joints in window reveals. This is a demanding application: the bond must hold firmly under mechanical load, temperature cycles, UV exposure, and moisture – often for the lifetime of the building.
The Solution: DuploCOLL® 50118

DuploCOLL® 50118 is a 1.0 mm anthracite PE foam tape with a modified acrylic adhesive (solvent-based) on both sides – engineered specifically for bonding construction and trim profiles to laminated PVC window surfaces.
Key performance characteristics:
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Excellent adhesion on critical decorative surfaces – including PVDF, PMMA, PUR coatings, and uPVC films in smooth, fine-structured, and wood-grain textures
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High initial tack and final adhesion strength – for reliable immediate bond and long-term load performance
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High elasticity – the PE foam carrier compensates thermal expansion and mechanical stress, protecting the bond over time
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Outstanding aging resistance – resistant to temperature fluctuations, moisture, and UV exposure, indoors and outdoors
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Consistent process reliability – stable bonding performance under varying production conditions
Validated on Leading Industry Film Systems
DuploCOLL® 50118 was developed in close collaboration with leading film manufacturers and profile extruders. Extensive tack testing across 15 decorative film substrates confirmed predominantly cohesive foam failure – the gold standard for adhesive tape performance – across the full range of tested surfaces.
This cross-industry validation ensures that DuploCOLL® 50118 performs where it matters – in real-world production environments with the films your customers actually specify.
One Tape for Every Frame
The window industry faces enormous complexity: profile systems vary by manufacturer, market, and application. DuploCOLL® 50118 simplifies this landscape. A single tape solution – available as rolls and spools – covers the full range of modern decorative film surfaces and frame geometries.
Part of Lohmann's Smart Building Expertise
DuploCOLL® 50118 is part of Lohmann's growing portfolio for window and profile applications in the Smart Building segment. It reflects Lohmann's approach to co-developing solutions alongside the value chain – working directly with film producers and profile extruders to address the real-world challenges that surface before the first roll is ever applied.
All Frames. One Tape.
Zero Compromise.
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