A super smooth multipurpose filler perfect for large and small jobs. Sets in minutes, creating an easy to sand, very tough and very smooth repair. Ideal for a heavier duty approach our Tetrion 2 Part Powerfil is a fast-setting, waterproof filler which makes it perfect for outdoor use. Tetrion 2 Part Powerfil cures differently to our more traditional powder fillers allowing it fill deep gaps without the worry of uneven setting times.