Service temperature range: -90°F to 168°. Appropriate for everyday medium-duty marking needs, Accuform plastic signs are semi-flexible, and ideal for indoor and short-term, sheltered outdoor environments. About Accuform: Accuform manufactures visual communications systems for facilities and the workplace. Our products include almost every type of safety sign, tag, and label, as well as an extensive line of Lockout/Tagout products. Accuform is widely considered the leading facility safety identification manufacturer in North America and beyond. For nearly 40 years, Accuform, headquartered in Brooksville, Florida, has continuously perfected and improved sign, tag and label manufacturing processes, safety procedures, environmental compliance, and distribution strategies to deliver world-class visual communications to the workplace that protect, inform, and motivate the global workforce. Accuform continues to work hard to further build a reputation of quality, flexibility, convenience, industry knowledge, and customer service. We take pride in promoting Accuform, tags and labels as "Safely Made in the U.S.A." .