Aquabond® UW-5000 and UW-5200 underwater repair compounds are professional, two-part epoxy adhesives designed to make long-lasting underwater repairs to swimming pools, spas, fountains and water features. They easily mix, apply and cure underwater. No need to drain the pool. Whether you need to repair pool/spa coping, fiberglass or a vinyl pool liner – or secure swimming pool handrails or rocks in a water feature- these amazing, all-purpose “wet or dry” adhesives provide an easy no-mess application.