For over 40 years Raven has produced high quality proven products for the oil and gas industry by manufacturing large one-piece drop in pit liners. Materials range from 6 to 45 mil thicknesses and are available in smooth non-reinforced, reinforced and heavy grid reinforced textured materials. All liners and covers are produced under the strict guidelines of our ISO 9001:2008 certified management system. Our customers benefit by receiving quick response times, strong factory welded seams, durable pin-hole free materials and high tear and puncture strengths in our full line of materials. We have solutions for many types of containment linings and coverings and are willing to work with you to find a product for your specific use. Give us a call today and speak with one of our knowledgeable sales specialist to determine your next solution.