Sentences with phrase «heavier than a rubber»
Not heavy, but heavier than a rubber skin or a cover made of plastic.
http://blog.the-ebook-reader.com/ Not exact matches
And the footballs spiral tightly because the thick butyl - rubber bladders inside the ball make for a heavier center of gravity than the polyurethane «sandwich bags» in competing pigskins, Oister claims.
Polyurethane Tires: A sort of marriage between plastic and rubber, these tires are relatively durable if slightly heavier than plastic.