Problem Solving Forum
August 20 - August 26, 2012
How long after blasting can stainless steel be left before painting? If this time is exceeded, what further surface preparation is required?
Daniel Liu of APC on
February 6, 2013:
No special guideline pres ...read more No special guideline prescribes such a time window. It can be left there as long as no obvious discoloration is observed. I believe the main purpose for blasting is to obtain the specified profile for the coating application. Thanks.
Ahmed Abd Ellatif of MOPCO on
February 28, 2013:
Painting can br delayed 2 to 4 hours, depending on ...read more Painting can br delayed 2 to 4 hours, depending on relative humidity.If it is high, the surface will be affected. We will find shadows, which then require reblasting.
Greg Howe of Retired on
February 8, 2013:
Follow the product data s ...read more Follow the product data sheet for the specified coating. This will give you profile and cleanliness requirements. Typically, SSPC-SP 1, solvent cleaning, is required to remove contaminants prior to coating.
Tom Schwerdt of Active Transportation Advocates on
August 30, 2012:
Stainless steel should typicall ...read more Stainless steel should typically be re-passivated after blasting. After that, it can be left as long as the surface isn't contaminated.
anthony meglino1 of asap on
August 21, 2012:
It can be left less than 24 hours. ...read more It can be left less than 24 hours.