I need to paint the interior new bare concrete blocks to workshop, advice would be appreciated on suitable primer/sealer prior to a white emulsion type paint finish as I appreciate that the new block work is porous and has the usual block texture. Thank you
Assuming you are applying by spray application, the walls are clean, dry, sond and prepared as detailed in the technical data sheet, we can recommend Zinsser AllCoat Interior (Water-Based).
This is a matt finish and can be mixed to many RAL, NCS or BS colours.