Warns readers that a permit is required for entry into this confined space. Label is available in 3 1/2" x 5" and 5" x 7" with the following material options:
- Adhesive Vinyl (5/PK) – 4-mil thick flexible material with acrylic adhesive. Surface is non-glare and moisture resistant with a service temperature range of -40°F to 176°F.
- Adhesive Durable Vinyl (EA) – 6-mil thick poly-composite vinyl material with a UV protective coating. Resistant to humidity, chemicals, abrasion, and solvents. Has an acrylic adhesive back and a service temperature range of -40°F to 176°F.