Mongo's Stained Glass Premium Select Black Back Foil 7/32" 1.25 Mil
 
Copper Foil Gauge is everything... Mongo's 1.25 mil is 25% Stronger 
 
Superior tack glue
Soft & flexible for those inside curves  
Black Back is for all opalescent and clear glass projects. 
When used with clear non-opalescent glass, black patina should be used. 
36 yards each roll
Width: 7/32"
Thickness: 1.25
Backing: Black
Item #CF50009