The prevailing trend toward the use of lighter weight and lower cost engineered plastics in automotive, construction, aerospace, electronics, and other industrial uses has created a need for pressure-sensitive materials that can bond well to these new, inherently low-surface-energy (LSE) plastics. This article discusses novel, all-acrylic compositions with inherently lower surface energy that display significantly improved adhesion to LSE substrates such as polyethylene and polypropylene.