WELDSAFE® Ultrasoft No. 447
WeldSafe has a specially formulated SBR rubber surface that repels sparks and hot metal shards. This surface material has a melt point of over 500⁰ Fahrenheit. The Nitrile enhanced Nitricell sponge base absorbs repeated compression and bounces back to its original form better than any PVC sponge alternative. WeldSafe - Accept no substitutes in your critical welding applications!
"Best" sponge base
Machine cut and beveled edges prevent tripping
Melt point of over 500⁰ Fahrenheit
Available in 7/8" (2.25 cm) and 9/16" (1.43 cm) thick