Nelson Firestop Pillow (PLW™) is a compressible firestop device that is well suited for installations where frequent changes may be required. It consists of a mineral fiber treated with a specially formulated firestop coating enclosed in a strong polyethylene bag. When exposed to fire, the pillows lock the seal in place.
Nelson Fire Brick is a soft, pliable, intumescent material that is ideal for applications where the Firestop application may be required re-penetration. Upon the event of a fire, the brick material expands within the opening, forming a solid char that prevents through penetration of the fire.