Delta Precision Solvents from Chemtronics are nonflammable cleaning solvents designed to replace AK225 and other engineered cleaning solutions. Flux-Off Delta Flux Remover removes encrusted and oxidized flux deposits. Electro-Wash Delta Cleaner Degreaser removes all contaminants with solvency for heavily oxidized hydrocarbon or silicone grease and oil residues. Pow-R-Wash Delta Electronics Contact Cleaner is designed for electrical and electronic components and assemblies. Choose from aerosol packaging or bulk liquid in 1-gallon, 5-gallon or 55-gallon drum packaging for cold cleaning and ultrasonic cleaning. 800/645-5244; www.chemtronics.com.