Accuform mcslprrxve gas cylinder shoulder label, propane, dura-vinyl, 5/pack specifications: cylinder shoulder labels identify the gas content within compressed gas cylinders printed image protected by a high-gloss uv protective coating for durability indoor and outdoor marking locations permanent acrylic adhesive back dual-layer flexibility can be applied to curved areas scored back liner for quick peel-off and application they comply in accordance with osha 29 cfr 1910.253b1ii