Dethlac Insecticidal Lacquer has been on the market since 1959. Once sprayed, Dethlac dries to a hard clear film and is highly effective for months against ants, woodlice, cockroaches and other crawling insects. Dethlac can be used indoors and outdoors in both domestic and commercial premises. The product can be used by both amateurs and professionals. Dethlac has UK approval, HSE 9708 and EIRE approval PCS 98560. Each pack contains 12 aerosols x 250ml.