Expantrol™ is a sub-brand of 3M™, recognized for providing specialized solutions to fire protection needs. They offer products like Intumescent Strip, a cutting-edge fire-stopping technology. This strip expands under high temperatures to seal off fire and smoke, thereby safeguarding both people and property. 3M™, through its sub-brand Expantrol™, continues to contribute innovative and crucial solutions to enhance safety in various settings.