OTW Safety

Video Transcript – How to Repair Plastic Barricades

February 5, 2019

DAVE: My name is Dave, I’m with OTW Safety and I’m gonna show you how to repair a plastic barricade. So if you look down here at the corner, sometimes this happens, but barricades either have tears or crack in them and this causes the barricade to not hold any more water. Because of the nature of plastic, specifically polyethylene, resins and adhesives do not work so the only effective way to repair a barricade is to use a polyethylene filler rod and weld it into place to seal up the hole. So we’ll go through all the different processes.

DAVE: First would be to prepare the surface. Before you begin to repair the barricade it’s important to make sure that it’s clean. So with acetone, mineral spirits or other solvents make sure that the barricade is clean and dry, the cleaner it is the better the seal will be. I’ve already cleaned this a little bit but for purposes for this video I’ll clean it again and make sure it’s nice and dry. In the meantime make sure your welding iron is heating up, takes about five to ten minutes to get a good heat going.

DAVE: But once that’s nice and hot get your metal mesh, this will act the same way that Rebar does inside of concrete. Make sure to cut a piece that will cover the affected area, the damaged area and make it sure extends past the cut area by about three eights of an inch. This stuff’s pretty easy to cut, cut with scissors or wire cutters. So once you have the wire mesh make sure that it fits the area and that it’s ready to go, place the over to the side, and before the metal mesh is put into place try to fill out as much of the crack as possible with the filler plastic.

DAVE: The best way, the most effective way to do this is kind of just sandwich the plastic against the barricade. See it melting. Try not to inhale the fumes. But once the crack has been filled go ahead and grab the small metal piece of mesh, place it over the affected area, and then start melting it into the surface of the plastic. And like I said, this will act in a similar way that Rebar does in concrete, this will give it strength. So as soon as the process is finished, more than likely this will be the strongest part of the barricade. As you can see it’s embedded there, into the plastic surface, it doesn’t have to go too deep. Make sure you don’t melt it so far that it burns a hole through the barricade.

DAVE: Then, as soon as you’re ready, start filling plastic over the metal surface to make sure that the hole is- or crack- is completely sealed. And just do this by melting small segments at a time and blending it into the surface. Make sure you use enough filler plastic, not using enough will not create a good seal. Work around the edges, make sure it’s all filled in.

DAVE: Some of our customers want a better aesthetic repair job once it’s all finished so if you care to have a really smooth surface make sure you kind of just massage it in, make it nice and smooth. But that’s it, pretty simple, quick fix but effective fix.

DAVE: We hope this video was helpful, we have more information located on our website OTWsafety.com go to the resources section, we’ll have more documents that can help you through this process and if you continue having problems reach out through phone, we’d love to talk to you. Thanks.