How To Weld Vinyl Sheets Together

Apply a uniform bead 1 8 to 1 4 wide centered at the seam.

How to weld vinyl sheets together.

Spread vinyl floor adhesive on the floor with a 1 16 by 3 32 inch notched trowel. In addition the two sheets being welded together are farther apart so the installer is filling a gap with weld rod instead of welding the edges of the two pieces together. Before you start the actual weld pin loose pieces of plastic together by melting the ends of the joint. Allow the adhesive to sit for the set time specified on the.

This will keep the plastic from moving as you complete the weld. Then immediately apply pressure to fuse them together allow to cool down if too hot. As the needle is drawn along the seam the sheets separate slightly which will allow the fluid to flow between them. Rapid angular oscillations are applied to heat the plastic parts to be joined.

If you notice part of your design lifting up you can just hold it down with your finger while you pull off the vinyl surrounding it. Start at a corner and slowly pull the vinyl up at an angle making sure all the parts of your design remain attached to the carrier sheet. The bead of sealer must flow back together around the needle after it has been applied to the seam. The heat in the extruded bead is sufficient to cause it to weld to the adjacent surfaces.

Notice the groove in photo 5 below has a more pronounced groove on one side of this failed heat weld. A bead of the same materials is extruded between two sections and then the two sections are immediately pressed together. Then apply heat again. Roll the edges of both sheets away from the seam.