New product promises pavement preservation in Council Bluffs. Jobeth Devera, 6/27/15KETV/Omaha Crews are applying a product called GSB-88 ®, which “penetrates the asphalt and fills in all those voids,” said Jeremy Noel, the department’s streets and sewers manager. If not filled, potholes could lead to bigger problems that Noel is trying to avoid. “We are proactive in trying to extend the lives of our pavements,” Noel said. One application of GSB-88 can last up to 10 years