Parex render not matching sample

E

Ewdhtew

New Member
Got three samples made up to pick an external render. G00, G20, V10.

We picked G00.

Render done and the front of the house (south facing) is a good bit darker than the sample and looks like more of a yellow. Back of the house (north facing) is much closer to the G00 sample all along the ground floor section, but darker across the first floor section.

One of the attached images shows the three samples we got done up with their parex code. G00 is brighter than G20.

Annoyingly, our G00 sample went missing on site and I didn’t get to take photos comparing the finished wall to the sample. When I had the sample, I flagged the colour difference after the render was just done and was told it would match the G00 after a few weeks of drying.

Its approximately 3 months since it was done and it hasn’t gotten to the stage of matching.

The second image shows the G20 sample (as I don’t have the G00 sample anymore), which is darker than the G00. The wall behind the sample is roughly the same colour as the G20, though to my eyes the G20 looks slightly brighter than the finished wall.

We hate the colour of the render as it looks yellow, particularly from any distance away and we specifically said from the get go we do not want yellow.

Curious what might be going on? They showed me the bags of render they worked from and they were G00. Could there be an issue with that G00 batch? Could they have mixed it incorrectly?
 

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Need to speak to parex really, if it’s a different batch there may be a chance of slightly different colour
I’ve had it before where the colour was nothing like the finished product need to speak to parex
 
If you do go to pared though they will more than likely say it has to go through seasonal change before the render fully settles in colour
3 months should be plenty though unless it’s on 100mm thick
 
Temperature, conditions, and timing can play a part.

I've had the same pallet come up shades different.


Around 15 years ago (summer 2010 ish).
Same stretch of long wall, lots of sections. Start on at 8am spat/rule by 1030am.

Bar and rubbed each day at 230pm

On the scorching days it ended up a lighter shade than the overcast days.

As they were all lined up it was noticeable to me. A month or so later it had evened out a bit - but I could tell.

Almost similar to above in the OP's pics.
 
bobski said:
Temperature, conditions, and timing can play a part.

I've had the same pallet come up shades different.


Around 15 years ago (summer 2010 ish).
Same stretch of long wall, lots of sections. Start on at 8am spat/rule by 1030am.

Bar and rubbed each day at 230pm

On the scorching days it ended up a lighter shade than the overcast days.

As they were all lined up it was noticeable to me. A month or so later it had evened out a bit - but I could tell.

Almost similar to above in the OP's pics.
Click to expand...
I’ve had that too mate great these modern renders lol
Missed accelerator in a mix too that was a completely different colour
 
spunky said:
Need to speak to parex really, if it’s a different batch there may be a chance of slightly different colour
I’ve had it before where the colour was nothing like the finished product need to speak to parex
Click to expand...
If that is the case, what’s the possible ‘outcome’ for the customer (us)? Is it a shrug of the shoulders sort of “that happens with renders” or can something be done to get the colour right?

It’s definitely not 100mm thick.
 
bobski said:
Temperature, conditions, and timing can play a part.

I've had the same pallet come up shades different.


Around 15 years ago (summer 2010 ish).
Same stretch of long wall, lots of sections. Start on at 8am spat/rule by 1030am.

Bar and rubbed each day at 230pm

On the scorching days it ended up a lighter shade than the overcast days.

As they were all lined up it was noticeable to me. A month or so later it had evened out a bit - but I could tell.

Almost similar to above in the OP's pics.
Click to expand...
Is it possible that there’s no ‘remedy’ in that case? The work was done over two or three consecutive days. Any parex involvement likely to be shrugged off as ‘that can happen’ and ‘nothing can be done about it’?
 
I'd put good money on Parex not doing shite.

You can lighten it a tad - but it's a lot of f**k**g about.

Sealers can also change the appearance/shade too.
 
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