Just a thought When i paint any surface that a customer requires I always assume the finish gloss or satin
Prime any surface, Undercoat twice and use wet and dry with soapy water grits vary, prepare satin paint thinned down with Turps (it dries slower) not too much allow to dry use wet/dry 12oo with soapy water it removes all tiny dust particles thats dried on the surface then T Cut the finished surface this sounds harsh it works and polish off using car polish . if you do this right the finish is brilliant like touching glass this also is great for gloss paint
Prime any surface, Undercoat twice and use wet and dry with soapy water grits vary, prepare satin paint thinned down with Turps (it dries slower) not too much allow to dry use wet/dry 12oo with soapy water it removes all tiny dust particles thats dried on the surface then T Cut the finished surface this sounds harsh it works and polish off using car polish . if you do this right the finish is brilliant like touching glass this also is great for gloss paint