10mm Radius rounded corners, no sharp edges Challenge Industries Ltd. :: Cleaning & Breakroom :: Safety & Security... Can be fixed to posts, walls or cladding either drilled, screwed, riveted or nailed. NMC 7x10 Confined Space Keep Out - Vinyl Danger Sign Danger Keep Out Sign MultiPurpose - 600mm X 200mm - Elite Sign Solutions Aluminium Danger Sign Danger keep out general safety sign , 3mm Aluminium sign , 300mm x 200mm Danger Keep Out Sign – Safety Signs & Stickers Advantages of Using Dibond Aluminium Sturdiness - being made from composite aluminium, our Dibond signs are rigid and have been thoroughly tested for high impact resistance. Aluminium composition means it doesn't rust or get cracks Dibond is often used for shop / building signage, directory signs for offices or flats, but can also be used excellently in car parks, property development hoardings, direction and information signage and much more.