http://www.dakkadakka.com/dakkaforum/posts/list/8.page JForum - http://www.jforum.net
Its for my big senerie peace for fantasy]]> http://www.dakkadakka.com/dakkaforum/posts/preList/503674/5225053.page http://www.dakkadakka.com/dakkaforum/posts/preList/503674/5225053.page GMT wall, it'd be a major pain to manually paint all of the mortar lines, so your best bet is to prime white, then never touch them again. If you wanted black lines, instead (less stereotypical, but not uncommon), a wash at a later point will suffice, if you don't slather it over your already painted brick faces. I like to sponge on the next coat - better coverage than drybrushing, but still keeps paint off of the recessed lines - with the final highlight applied by light drybrushing. If the bricks aren't assembled, you can just paint on the first coat, then drybrush the highlight.

As for colors, it depends on the feel you're going for. For something more vivid and cartoonish, I use a moderately deep red (Mechrite Red foundation paint), darkened slightly with a dark brown (Scorched Brown), using the pure color as a highlight. For a more faded look, I'll mix red with a decent bit of a warm medium brown (Bestial Brown), adding more of the brown to the highlight. If I want the weathering to have a grimier feel (wetter, sootier, etc.), I'd use a darker brown (Scorched Brown, again), but in greater proportion than the first method.

Also, remember that bricks are rarely entirely uniform. Especially if you're doing an assembled wall, it pays to lighten or darken a few bricks, here and there. It looks haphazard if you overdo it, but keep it subtle and it adds a nice touch of variety and realism to simulated brickwork.]]> http://www.dakkadakka.com/dakkaforum/posts/preList/503674/5225120.page http://www.dakkadakka.com/dakkaforum/posts/preList/503674/5225120.page GMT http://www.ibstock.com/traditional-stock-bricks-chailey.asp
Also mortar can be coloured too but most usual is natural (sand) or black.
I've painted a whole panel then used a lighter colour as a wash to create the mortar.]]> http://www.dakkadakka.com/dakkaforum/posts/preList/503674/5225830.page http://www.dakkadakka.com/dakkaforum/posts/preList/503674/5225830.page GMT
1 ) Prime black
2 ) Cover in "Brick red" acrylic craft paint (or other suitable cheap craft paint color for your bricks color)
3 ) varnish
4 ) wash with a brown(ish) wash and wipe off excess (keeping most of it in the recesses)
5 ) pick out a few bricks to vary the colors (add a little white or black to the original paint color to get some variation)
6 ) varnish again and set aside.

It turns out pretty good unless you want the lighter sand colored mortar, then you'd be best to basecoat in that color and, as Oadie said, lightly sponge on the brick to hopefully not get into the recesses.
]]> http://www.dakkadakka.com/dakkaforum/posts/preList/503674/5225842.page http://www.dakkadakka.com/dakkaforum/posts/preList/503674/5225842.page GMT