Sika Sarnafil's Graveline Receives ASTM William C. Cullen Award
Sika Sarnafil, a manufacturer of thermoplastic roofing and waterproofing membranes, announced that Stanley Graveline, Vice President, Technical Services, has received the William C. Cullen Award from ASTM International in recognition of his long-time outstanding contributions to the field of roofing and waterproofing.