Ask an Expert

Q: What causes concrete to show patterns or stains around the edges?

A: These are usually signs that the edges of the panel haven’t been properly sealed. That allows water to seep into the plywood under the overlay and transfer patterns or stains to the concrete. This concrete water absorption can also result in “picture framing” where the perimeter of the form panel will be darker than the The major benefits of such a machine besides the marketability and competitiveness to other slot machines and pure electronic or video games and gaming devices are:(1) Prevention of tampering of the game to create illegal wins and payoffs. center.

To prevent this problem, make sure your conform panels are sealed all around the edges. It’s best to use a quality edge-sealer designed for this application, but even a good quality acrylic paint will help. You should also re-seal scuffed edges and fastener openings between uses.

Got a jobsite problem or a question about overlays? We’re here to help. Submit your question *here (with a photo, if you have one). We’ll do our best to answer your questions, find solutions and help you produce the best job possible.