Explosion-proof glass, also called blast-resistant glass, is a security glazing engineered to withstand extreme pressure from explosions while remaining intact. It is typically built from multiple layers of toughened or annealed glass laminated with durable polyvinyl butyral (PVB) or ionoplast interlayers, and is often backed by a polycarbonate catcher layer. Under a blast load, the glass may fracture but stays bonded to the interlayer, absorbing the shockwave energy and trapping dangerous fragments to prevent lethal spall from flying inward. This maintains the building envelope, protects occupants from secondary debris, and preserves visibility. It is widely used in embassies, military facilities, airports, financial institutions, and critical infrastructure requiring high-security forced-entry and bomb-blast protection.