MM ( millimeter ): 0.15mm, 0.75mm, 1mm, 1.5 mm, 2mm etc. We are a aluminum sheet manufacturer, provide our global consumers with a variety of aluminum sheet with different thicknesses, such as thin aluminum sheet , 1 mm/2 mm/ 3 mm /4mm /5mm 6mm ect thick aluminum sheet. Of the most important is that you do not worry about 2 mm aluminium sheet ...That’s why MAX-metal features flexible products supported by a team of knowledgeable sign printing specialists. Contact Us. MAX-metal™ 11745 Sappington Barracks Road St. Louis, MO 63127 Grimco Connect is designed to give you the tools to run your business and select the best products for your application.Aluminum, or metal core board or insulated metal substrate (IMS), clad with thermally conductive thin dielectric - used for parts requiring significant cooling - power switches, LEDs. Consists of usually single, sometimes double layer thin circuit board based on e.g. FR-4, laminated on aluminum sheet metal,monly 0.8, 1, 1.5, 2 or 3 mm thick.Apr 13, 2020 · Clean the aluminum with a stainless steel brush. Aluminum forms aluminum oxide rapidly upon contact with air, and this thin layer of oxide cannot be joined. Scrub it off thoroughly with a steel brush, but read the instructions below first. Be prepared to clean, flux, and solder in rapid sequence so the oxide does not get another chance to form.