While a high quality structural sealant can add significant reinforcement to a window protected with a film, most ACE projects are undertaken without the use of a sealant or caulking. Historically, sealant has been used to artificially enhance the performance of under-performing films during testing. Again, most commercial applications will not require the use of a structural sealant when using ACE security laminates. There are cases when it can be beneficial and ACE would be pleased to discuss this requirement with you.