Applications Eletric gun for two-component cartridges 450ml ratio 2:1 Characteristics 450 cartridge 2:1 ratio Properties B959 M is an MK electric gun from the manufacturer SULZER. B959 M is a battery-powered applicator for a 450 ml two-component cartridge with a 2:1 ratio. B959 M is ergonomic, very robust and easy to use.  This B959 M electrical dispensing system from the manufacturer SULZER enables the use of products from the ACROBOND A and ACROBOND PU and ACROBOND EP series. Other SULZER COX or MK hand guns are available for products requiring different mixing ratios.