This is the perfect vacuum exposure blanket for your DIY exposure unit plans, or to replace a torn blanket on your existing exposure unit. This neoprene blanket is the industry standard installed on almost every type of vacuum exposure unit.If using a tri-loc system or similar screen pre-registration system, we recommend reinforcing the contact points with a few layers of tape or some thin foam or rubber to help prevent premature wear of the vacuum blanket in those areas.