We Have Revolutionized Pigment for Concrete with Granastar® Granular Pigment. THE ORIGINAL Interstar developed granular pigme ... nt and granular pigment dispensers over 20 years ago, and were the first to manufacture them for ready mix concrete. We’re the original. PROVEN Our granular pigment is backed by over 20 years of tried-and-true experience. Our consistency and reliability are proven. We design and manufacture our own granular pigment dispensers, and we have more dispensers for ready mix concrete in the field than everyone else combined. RELIABLE You can depend on us – from our time-tested and proven products to our unmatched customer service. We put customers first. This means when you call our offices, you speak to a person. When you have a question, we reply promptly. When you need something, you get it. read more