History of the Feltlayer

Ever wonder how something got started?  Let me tell you about the staple of hot roofing, the Feltlayer. Hot asphalt had historically been applied by cotton mops.  After World War II, with the construction of larger buildings and wide open spaces, there was a machine developed in the Chicago area for applying asphalt and felt…Details

Leister Triac-S Tips

You probably know that the most popular Leister Triac-S tip is the 40mm wide slot nozzle.  But did you know that Leister offers a whole array of other tips?   The 20mm wide slot nozzle is great for detail work.  The angled 20mm nozzle with 60º bend and the 20mm nozzle with 90º bend are…Details