Perfect choice for building and repairing your Twisted Hobbys EPP planes! This is the only adhesive you will ever need. Welder virtually bonds anything to anything! Clear, heavy-duty, flexible and water-proof when dry. Use indoors or out. (2) 1 oz tube. Can be used with EPP Foam safely. For other foam we recommend testing since Welder Adhesive can melt depron or other types of foam.