Mocowanie klamek i uchwytów – pewny chwyt bez widocznych łączników

A door handle is a component that the user touches a dozen or so times a day and which is subjected to cyclic loads throughout the vehicle’s lifetime. The mounting must not only be strong, but also resistant to fatigue, minor impacts and jolts. Traditional screws require holes, which weaken the component and are often visible, as well as providing a pathway for moisture.
3M VHB tape allows the door handle to be secured without affecting visible surfaces. The bond forms upon pressure, evenly distributes pull-out and shear forces, and accommodates minor irregularities in the part’s geometry. For the end user, the result is aesthetically pleasing – no screws, no gaps, a smooth surface.

The key to success lies in selecting the right adhesive for the specific material. Door handles are often made of metal, powder-coated or moulded from plastics with varying surface energies. A universal acrylic adhesive adheres perfectly to materials with high and medium surface energy (metals, glass, many plastics), whilst for low-energy surfaces, such as certain plastics and powder coatings, a modified adhesive or one from the VHB LSE range will perform better.

As the relative adhesion comparison shows, product families such as 4941 or 5952 offer high adhesion to HSE and MSE surfaces, whilst VHB LSE maintains high adhesion even to LSE materials. It is precisely this difference that determines whether a bond will remain reliable for years or start to fail after the first few seasons of use.

CVGS supports the customer during the material selection and surface preparation stages. We test wettability and adhesion on the customer’s actual substrates; where necessary, we recommend a primer to enhance adhesion, and then we cut tape blanks precisely tailored to the door handle’s bonding area. This enables the production line operator to apply the component in a single movement, without having to improvise.

The result is a fastening solution that combines mechanical strength with aesthetics and repeatability. This is a good example of how a seemingly simple detail gains in quality when, instead of a standard screw, we use a carefully selected and correctly converted 3M VHB tape.

The reliability of such a bond is confirmed by testing. 3M subjects the tapes to drop, tensile, shear and long-term ageing tests, examining the behaviour of the bond under real-world loads. For a component touched thousands of times during its service life, it is fatigue resistance – not momentary strength – that determines success.

From a production perspective, repeatability is key. CVGS supplies pre-cut pieces with consistent geometry and in a form that facilitates quick application, meaning the operator does not need to measure out or cut the material on the production line. The standardisation of the bonding area and clamping pressure directly translates into consistent quality for every door handle fitted.
As a result, a seemingly trivial component achieves a level of quality on a par with automotive standards: a secure grip, clean aesthetics and consistency from the first to the last unit in the series.