It contains 12.5g/LEC of Deltamethrin, a synthetic pyrethroid. For indoor and outdoor control of cockroaches, spiders, ants, fleas, carpet beetles, silverfish and bed bugs. Delta Force surface spray is a general purpose residual insecticide for both indoor and outdoor use. It can be used on both porous and non-porous surfaces, and once dry will adhere and not be affected by rain. Delta Force is non-staining and non-flammable. It is typically applied as a surface spray and/or a crack and crevice treatment. It’s broad spectrum activity allows it to control a wide range of insect pests.