Aluminium composite panel (ACP) is one of our most popular printed materials for long-term use. Its central core of rigid thermoplastic material is laminated with a 0.3mm outer skin of aluminium sheeting, the thickest available on the market. Aluminium signs are long-lasting, waterproof and impact-resistant, and is ideal for exterior signs and hoardings. At Purple Monkey we print your designs digitally, in six colour process with our eco-friendly UV inks, direct to the board using the best quality presses on the market. ACP is single sided 3mm thick, available in A0, A1, A2, A3, A4, and A5. Quantities from 1-10,000.