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Thread: Rendering - Technique & Colour
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5th January 2008, 02:52 PM #1New Member
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Rendering - Technique & Colour
I am in the process of building a brick dividing wall in an outside area. One side will be tiled (no doubt the subject of a later post) the other I'm planning to render and colour.
I am a complete novice with brick, cement and render. So far the wall is going okay but I need learn more about rendering before I start that part of the process. The best I can find in these otherwise excellent forums is from schwerdty:
I didn't see anyone challenge him so I take it this is sound advice. Anything else I should know?
I also plan to have the wall coloured. I'm thinking about using a render colour - or would I be better off painting the finished wall?
Regarding the colour addition - I take it you only apply that in the 2nd coat? And is there a colour chart to give you a rough idea of what it looks like? Bunnings just sold small tubs with a name - "Sand" - "Sienna" etc but no display of what the finished product looks like.
The finished texture isn't too important tho I'd prefer a slightly rough finish - how would I best achieve that?
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5th January 2008, 07:58 PM #2
Hi Sancho and welcome to the forum. The technique described above is pretty spot on and there is nothing I could add to it - except that for a final finish you can just use a flat piece of polystyrene foam - such as you would find in packing material. You dont actualy need a foam trowel.
The trick to getting an even color in your finish coat is to mix the oxides in the total batch of render mix while the powders are dry. A cement mixer is necessary - mixing in barrow just doesnt cut it.
I dont know of any color guides for render mixing. It is a matter of experience with using render mixes and even then some experimenting is necessary. Generally colored render dries about 2 shades lighter than how it appears wet.
I would suggest that you use the basecoat render mixes to experiment with colors - it is a lot of fun - and you might feel confident to try for your desired top coat color. Be aware though that some colors bleed - especially Oxide reds and browns.
If the colors go all wrong you can always over paint with a flat acrylic - which is how a lot of renders prefer to work anyway.
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5th January 2008, 08:13 PM #3
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