What is insulation strip?
The insulation strip is an important condition for whether the aluminum window of the bridge is insulated. The insulation strip should be made of nylon material. PVC will deform, fall off, and leak after aging, and how to distinguish it is also very simple. Just pick it up and fold it back and forth, and the PVC will turn white after a few folds, or use a lighter to burn it without igniting it.
The specifications of thermal broken aluminum door and window adhesive strip: imported EPDM products, with a service life of 30 years, while low-quality products only have a service life of about 5 years. Silicone weather resistant adhesive should be used for sealant.
Distinguishing the authenticity of adhesive strips: first look, second smell, and third stretch. The genuine adhesive strip has a pure black color, no bumps on the surface, and good density; Smell: Normal rubber odor, the odor should be non pungent and not strong; Stretch: Strong tensile force, elastic, and not easily folded.