Adhesion challenges when painting, printing and bonding polyolefins?
Despite significant investment in pretreatments such as flame, plasma, corona and chemical specific primers, no current pretreatment for polyolefins (polypropylene and polyethylene) has delivered the cost-effective, durable and reliable adhesion performance your products need in service.
Many pretreatments activate polyolefin surfaces for a limited time frame, resulting in complex logistics to ensure parts are activated and coated/bonded within the adhesion window. This complexity and the low reliability of some pretreatments can lead to high levels of product scrap and defects. To combat this many companies evaluate specially designed coatings and adhesives to achieve the required adhesion quality, but costs can be significant and a one size fits all solution has not been available up to now.
Isn’t it time the adhesion issues with PP and PE were finally cured?