Alumaxx® Plus (I3HeAr30) weld process mixture is classified in group I3 according to ISO14175. The best gas mixture for MIG and TIG welding aluminium. Contains 30% Helium in Argon. Generally suitable for TIG welding of all weldable metals and alloys and MIG welding of Aluminium, its alloys and other reactive materials. Supplied in a 50 litre steel cylinder at 300 bar. Integra® cylinders are safer, smaller and lighter. The Integra® cylinder is designed to be used with a choice of Integra® flow optimisers (available separately) which ensure optimum weld results whilst reducing excessive gas usage too.