- Surfaces and cavities which could be damaged or contaminated by the surface preparation
and/or painting will be masked or plugged appropriately. This includes openings in vessels
and piping, and many of the items which are not to be painted.
- All oils, greases, tars, salts, and similar materials or contamination will be removed per SSPC
SP 1. This includes the use of high-pressure washing with industrial detergents, followed by
rinsing with clean water.
- Prior to paint application all surfaces will be assessed and treated in accordance with ISO
8504:2000.
- All loose rust and loose mill scale will be removed. All weld splatter and slag, shall be chipped
or ground off. All sharp edges, points, burrs, weld platters, weld peaks, roughness, and raised
surface defects will be removed by power sanding or grinding (and intact shop primer where
applicable) to St3 ISO 8501-1:2007 / SSPC- SP3 / Pt3 of JSRA SPSS-1975.
- All edges of the existing coating will be sanded to taper the thickness and thereby make for a
smooth transition with the new paint.
- The surface will be lightly abraded with a bristle blaster and GSE ensures it will be free of
dust and dirt prior to application of coatings.
- The ground shall be covered.
- If the surface preparation reveals a defect in the material of any structural or pressurecontaining
component, such as cracks, pitting or weld porosity, the client shall be promptly
contacted. No coatings shall be applied until the client has explicitly accepted the defect or
its repair.
- Once achieved, the specified surface preparation standards must be maintained until all
areas are prime painted.
