The Applied Science of Weather Sealing

For maximum, long-term performance in real-world environments, weather seals have to stand up to a variety of usage factors. The most significant of these factors is the permanent compression of weather seals caused by the heating and cooling pressures exerted by door construction materials.

Schlegel Systems' Q-LON Seals are thermoset products. Thermoset products cure by cross-linking to form a permanent three-dimensional molecular structure, and remain resilient even under extended and repeated exposure to heat and pressure.

Some weather seals are made from thermoplastics (TPE) which are molded through the fusing of resins into a shape that is solidified by cooling. Through effective in the short term, the reapplication of heat and pressure which occur in real world conditions, commonly causes these products to soften and permanently deform.

Q-LON Seals have proven to be dramatically effective and superior in virtually every aspect of long-term efficiency. In short, they add world-class durability that benefits everyone from designers to home owners.