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The 13mm Stainless Steel External Plaster Stop Bead 3m is a metal finishing accessory designed to create a clean, straight edge and reinforce plaster or cement-based render terminations in external wall applications. Made from corrosion-resistant stainless steel, this external stop bead helps protect plaster and render edges from chipping, cracking and impact damage while providing a precise finish where plaster meets other materials such as door and window frames or changes in plane. It is suitable for use with traditional wet plaster and render systems, and can be fixed with stainless steel nails, staples or adhesive to deliver a durable, professional finish on façades.