Extrusion welding checklist

Before you begin

• Check that there’s enough extrusion rod for the job
• Clear the welder of any old material
• Doublecheck that the shoe matches the seam you want to make
• Scrape away the oxidation layer on the PE pipes
• Clean the surfaces of any mud, dust, oil, water, etc
• Set the pipes in place – tack weld or clamp
• Set the right temperature for the extrusion rod you’re using

As you weld

• Preheat the surface where you’ll start welding
• Check the angle of the welder. (How well is the extrusion folowing? Are the surfaces preheating evenly? Does your seam look straight and regular?)
• Balance your travel speed against the extrusion rate

After you’re finished

• Let the seam cool down before moving or adding any pressure
• Clear extrusion welder out and leave it as clean as you can for next time