Hi Neil, love seeing the updates and photo's on here. Your weathering and brickwork is amongst the best I've seen. I'm after a bit of advice about painting bricks. I've done a base coat then mortar then picked out individual bricks. I'm now having trouble getting it to look right and wondered where to go next. I've posted this pic as to where I'm at.
I did try some powders on the other side and it looked a bit better but not quite right somehow. I wondered how you got your effects and if the mortar colour could be a bit too light.
Apologies if this has been asked before and I've missed it.
Regards.
Steve.
Looks to me you are on the right lines I also tend to add shades of the same colour - adding touches of light and dark grey to my base brick colours or by lightly over shading with a pencil crayon).
Mortar colouring depends on how new the building is. My go to is a beige/biscuit shade of emulsion (a quid's worth of tester pot can last ages). But on the older buildings on the layout I have also added thin washes of acrylic to darken the colour (the mortar lines can look almost black on some aged and weather stained buildings).
I stated by photographing section of brick walls of buidings of the age and types we are modelling and try to recreate the look of those sections in miniature by trial and error on areas of a sheet of brick plasticard glued to a sheet of ply. Once I was confident that I could recreate the effects over and over again I then stated applying the paint and weathering to the actual model.
Yes it still goes wrong occasionally ...though in one case I tried cutting the paint back with light rubbing with a fibre glass pencil and it actually created an effect so pleasing I left it as is and stopped there.
It a matter of recreating what you see though observation. There are 4 buidings here dating for different decades, all brick and all different. Those to the rear would be mid to late 1800's (one is well weathered brick the other overpainted). the foreground buidings is less weathered and this lighter finish but has a faded painted advert on the end wall. Whereas the office in the middle dating from just pro or post WW2 is more moden red brick and much newer.