Query: Why is surface preparation (blasting) not allowed during night hours 1

[mnthiraviam]

Query: Why is surface preparation (blasting) not allowed during night hours

 

[MikeHalloran]

What substrate?
Blasting with explosives?
Blasting with metal shot?
Blasting with abrasive media?
Where?
Who doesn't allow it? Which authority? Have you asked them?




Mike Halloran
Pembroke Pines, FL, USA

 

[metengr]

Because humidity increases at night because of lower temperature.

 

[Airsmybag]

If you are talking about blasting steel, such as storage tanks or structures, the surface cools at night after sunset. As the sun rises, the air warms faster than the steel. The dew point of the air is higher than the temperature of the surfaceand the steel becomes a condensing surface for atmospheric moisture, causing flash rust, or interfering with coating performance or adhesion due to trapped moisture.

airsmybag