3M 05916 Welding and Spark Deflection Paper Tape is a flame-retardant, repositionable, adhesive-backed paper product used to protect vertical surfaces from damage caused by welding spatter and grinding sparks. It suppresses burning from welding spatter and grinding sparks and can be adjusted after initial installation to insure correct position. It offers low-cost but vital protection. 3M 05916 protects automotive glass and light fixtures, painted sheet metal, other damageable vertical surfaces from spatter and sparks. The product is NOT designed for installation on horizontal surfaces, such as roofs, decklids, hoods, carpeting on floorboards since it is not designed to prevent heat transfer from sparks or spatter that are allowed to sit in one position on the paper, these will burn through.