What is the Chimney Balloon made from?
The “pillow” portion of the Chimney Balloon is not rubber, because rubber disintegrates in chimneys. It’s a fairly thin but flexible plastic tri-laminate, a special ‘hi-tech’ material. The outer layer is tough, the inner is an air barrier layer and the core is a heat-shrink material. It is transparent to aid fitting. It took 5 years of research to come up with the perfect “pillow” material.
