Blasting Signs

These signs are required by OSHA and MSHA regulations to ensure effective communication. They inform all personnel on-site of exactly what the horn signals mean, preventing confusion and accidents during dangerous explosive work. They are often used alongside other mine safety signs.

A common standard is: 1 minute warning (series of long blasts), blast signal (one long blast), and all clear (series of short blasts). The sign displays this code clearly for everyone to see. You can find these signs in our blasting signal signs category.

Signs should be posted at all entrances to the blast area and in conspicuous places where employees congregate. This is crucial for maintaining a construction area signs perimeter and ensuring all workers are informed.

Yes, because they are used outdoors on active construction and mining sites, they are made from durable, rust-proof aluminum or heavy-duty plastic that can withstand harsh industrial conditions, ensuring visibility next to other big construction signs.