9/(2*3.14*0.0125x8)
=14
No idea what youve done there but ill take it lol.
So i should be able to get about 14 units per L
9/(2*3.14*0.0125x8)
=14
Attached some info. The minimum hand prep is ST2 but media blasting to SA2.5 is what is recommended. Hand prep guidance by Jotun.:
Hand and Power Tool Cleaning
Surfaces to be coated shall be prepared by mechanical preparation methods to minimum St 2 (ISO 8501-1).
Suitable methods are disc grinding, hand sanding or hand wire brushing. Ensure the surface is free from mill
scale, residual corrosion, failed coating and is suitable for painting. If power wire brushing is used, care should
be taken not to polish the metal surface, as this can reduce adhesion of the coating. The surface should appear
rough and mat.
Overlapping zones to intact coating shall have all leading edges feathered back by sanding methods to remove
all sharp leading edges and establish a smooth transition from the exposed substrate to the surrounding coating.
Consecutive layers of coating shall be feathered to expose each layer and new coating shall always overlap to an
abraded existing layer. Abrade intact coatings around the damaged areas for a minimum 100 mm to ensure a
mat, rough surface profile, suitable for over coating.
How is it with none? If a bit streaky try 10% and go from there. Fine to just mix it up as you need. How many topcoats is going to depend on your painting but two or three I’s imagine with a brush or roller.