MTL: Proto Corporation

Proto Corporation

Proto Corporation is the leading manufacturer of PVC fitting covers and jacketing systems for the insulation industry. We offer hundreds of different products in the largest variety of colors and sizes earning us a reputation as the industry innovator on many fronts. With a full-time research and development laboratory, Proto is constantly pushing the envelope with new products and designs for the insulation industry. Our dedication to quality and innovation has made Proto Corporation the industry standard since 1980. At Proto Corporation, customer service comes first. From order to delivery, we'll treat you with the same care and attention to detail we put into our products. One of our knowledgeable, on-site customer support specialists is always available, along with the dedicated sales staff who provide regional help across the United States and abroad. Visit

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