3M offers the new 3M Acrylic Plus Tape Series EX4500 designed for primerless application of trim components for global automakers and supplier customers. The EX4500 series allows for robust adhesion to medium surface energy (MSE) substrates. It is compatible with a variety of paints without the need for an adhesion promoter or other surface pretreatment methods, which makes it suitable for automotive manufacturers concerned with the cost, quality, worker health, and environmental issues that come with using a primer. According to the company, the EX4500 series uses a proprietary 3M adhesive technology to offer primerless adhesion to MSE plastics such as acrylic, acrylonitrile butadiene styrene (ABS), acrylonitrile ethylene styrene (AES), acrylonitrile styrene acrylate (ASA), polycarbonate (PC), and PC+ABS, while also ensuring compatibility with a variety of paints, including paints composed of carbamate, epoxy/acid powder, and 2K urethane.
Continue reading »