Low surface energy (LSE) substrates are notoriously difficult to bond. These substrates have a low affinity for other substances which result in poor wetting properties. As a result, traditional adhesives often fail to adhere to these substrates securely. To overcome this, several strategies can be employed including surface treatment, primer or adhesion promoter, and mechanical bonding. These options can add time, cost and weight or design restrictions to the project.
SCIGRIP SG400LSE is our new adhesive designed to overcome the bonding challenges of low surface energy plastics like polypropylene (PP) – also polyethylene, nylon-66 and even PTFE. In this test report, the results are shown for SG400LSE’s lap shear performance on PP to PP, Al to Al and PP to Al.
In almost all cases, the tests showed substrate stretch at about 4 MPa, with no bond failure.
Let us know if you would like to evaluate SCIGRIP SG400LSE in your polypropylene bonding project. Let’s start by talking about your application.
