Shopping results for Halloween Mylar Balloons - find Halloween Mylar Balloons deals, compare prices and shop with free shipping to United States
Got these and the other silver sided Mylars you see on Ebay. Back in the 80s, Mylars needed to be heat sealed. Sometime around 1988/1989 is when the self-sealing ones came around. The Jack-o-lantern face balloon in my bunch is a self-sealing one but not exactly sure what year it came out. Under the name "Superfoil."