Thermoplastic Welding Tips That Have Stood the Test of Time
Find master contractors - Ask And Expert - Repair DIY Help Center - For the old-timers out there, how many of you remember manufacturers saying these new thermoplastic materials could be welded ?straight through water??aIn the early 1970s I learned how to solvent weld PVC membranes. I?ve done and seen more than my fair share of welding over the past 40 years. Fortunately, the welding process saw advancements in the late 1970s and early 1980s, most notably moving away from the use of tetrahydrofuran (THF), a fairly toxic and highly flammable solvent, to hot air. At the time, this was a totally foreign concept and process to me since I had been raised installing built-up roof (BUR) membranes. Get free quotes - leaking roof, commercial roofing, roof coating, roof installation. The hot air welding process was ushered in with the introduction of automatic hot air welders. However, the equipment we were using was a technology transfer from the linoleum industry. And if we were welding six feet a minute we were ?flying. And in that time the materials and welding technology have changed significantly. There were also a number of lessons learned along the way. It was effective, but more often than not the automatic welders had to be run on strips of sheet metal so they didn?t create seam wrinkles. ?
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