The HCS2018 Vacuum Leak Checker can help prevent one of the most common problems associated with composite fabrication and repair – loss of vacuum pressure during the cure process. This device allows you to check the integrity of your vacuum seal before you cure your composite lay-up. The vacuum leak checker can be used in conjunction with autoclaves, ovens and composite repair systems (hot bonders). This simple yet effective system can detect the presence of hidden leaks before they ruin a valuable part.