The Spectracide Pruning Seal is a flexible sealant with multiple outdoor uses. Helps protect trees and smaller plants from diseases that can enter through pruned areas. This product also effectively seals and waterproofs clay pots, wooden planters, rain gutters, roof flashings, and small sections of asphalt driveways. This sealant can also be used to coat the underside of a lawn mower deck to protect from debris damage.