Gluing Corrugated Plastic Sheets

Rob shows a clip of plastic laminating where heat fuses plastic to paper.

Gluing corrugated plastic sheets.

Plastic sheeting is notoriously hard to join tape is messy and glue won t stick. Sand the plastic surface lightly. Go over the broadest area of the plastic piece with a square of high grit sandpaper before you get gluing. For the same reasons corrugated plastic sheets such as coroplast are hard to tape they are also hard to glue and paint.

Commonly referred to by the brand name correx. To glue plastic together start by selecting the right glue. If the number is a 7 or 9 use an epoxy or cyanoacrylate. They simply don t wet out and can t allow the glue to get a good grip.

Then combine lukewarm water with a small amount of dish soap. First rinse the polycarbonate with lukewarm water to remove any dirt sand or other hard materials that could damage the polycarbonate by scraping against it. Epoxy glues must be mixed with a hardening agent to form a secure bond. For 2 4 or 5 use plastic glue such as loctite plastics bonding system or scotch weld dp 1080.

Sanding the plastic will make it more porous and increase its overall surface area allowing it to bond to the wood more easily. Dip a clean sponge or cloth into the mixture and gently rub the polycarbonate to remove any small contaminants. If it s a 6 use a poly cement or epoxy. Clean the surface of the plastic to remove any grime and dirt using dish detergent and warm water.

The heat or corona treatment helps as does wiping with denatured alcohol but it is not a sure process. Find the recycling symbol on the plastic which will have a number in the middle. Royal blue corrugated plastic sheet 10 pack model cor4896 rbl 194 59 case 194 59 case out of stock online. Mix the glue according to the manufacturer s instructions.

Use only a few smooth delicate strokes to avoid roughing up the plastic too much. Some corrugated plastic sheets are surface treated to improve adhesion. At this point i don t think there is any glue that works perfectly and reliably all the time. Rub the compound onto the surface of the plastic a circular motion.

If there is any stress on the bond use a secondary fastener like a wire stitch or one of the high end tapes. Wait 3 to 5 minutes for the polishing compound to set. Orange corrugated plastic sheet 10 pack. Apply a small amount of polishing compound to the plastic according to the label directions.