This type of seal utilizes dense bristles, typically made of nylon or other synthetic materials, to create a barrier against air and moisture infiltration. Imagine a miniature brush attached to a door or window frame, gently sweeping the surface as it closes to block gaps. This flexible barrier effectively seals irregular surfaces and adapts to slight movements or warping over time.
The use of bristle-based sealing mechanisms offers significant advantages in energy efficiency by reducing drafts and heat loss. Their adaptability makes them ideal for applications where precise tolerances are difficult to achieve or maintain, such as older buildings or specialized equipment. Historically, simpler methods like felt or foam were common, but these degrade more quickly and offer less consistent performance. This more modern approach provides a durable, long-lasting solution for a range of sealing needs.