Rubber Foam Closed Cell PVC/NBR PVC/NBR foams are a common alternative within the foam conversion market. Home > Materials > Rubber Foam Closed Cell > PVC/NBR PVC/NBR PVC/NBR foams are a common alternative within the foam conversion market. With several uses across all sectors. Heading Heading Heading Heading Part Content Content Content Part Content Content Content Part Content Content Content Enquiry Form. Simply complete the details below and a member of the team will get back to you at the earliest opportunity Name Company Email Phone Number Subject Message File Upload I have read and agreed to the Terms & Conditions Send Enquiry