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Old 09-02-2017, 09:49 AM
Kdumas42 Kdumas42 is offline
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What's the big deal about Granulation???

I'm thinking about trading in my French Ultramarine Blue (W&N) for a Phalo Blue Red Shade because the first granulates and the later doesn't.

I'm just having a hard time with this granulation thing, I'm constantly mixing colors and granulation looks splotchy. But everyone lauds granulation. What am I missing???

Last edited by Kdumas42 : 09-02-2017 at 10:11 AM. Reason: New title
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Old 09-02-2017, 12:06 PM
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Yorky Yorky is online now
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Re: What's the big deal about Granulation???

Haha, I'm with you, I never rated it. If I want a special effect I'll add it.

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Old 09-04-2017, 01:39 PM
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WFMartin WFMartin is offline
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Re: What's the big deal about Granulation???

Haha.....Granulation, and flocculation never impressed me very much, either. I'm with Yorky; when I want an "effect", I'll add one.
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Old 09-04-2017, 09:23 PM
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Re: What's the big deal about Granulation???

you are talking about watercolor paints, right?
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Old 09-05-2017, 02:02 AM
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Re: What's the big deal about Granulation???

If so see this article by Jane Blundell.

Doug
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Old 09-05-2017, 11:52 AM
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KolinskyRed KolinskyRed is offline
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Re: What's the big deal about Granulation???

W&N Ultramarine Blue, and then a Phthalo Blue... two more different characteristics between paints would be tough to find! Granulation and flocculation (the later specific to FU) in the paint is promoted/enhanced by the hardness of the water we use in the mix. So, the harder the tap water the stronger the effect. You could, just for fun, try some very soft water... a gallon of Distilled Water (Reverse Osmosis on the label somewhere) from the grocery store (very cheap) might be interesting to try - to see if there is a difference. Just a thought.

PS If you haven't already tried the Phthalo Blue, here's the biggest difference between it and FU: The Tinting Strength. Best to start with a pencil dot of Phthalo Blue, add the water, mix and paint out a patch. If I put out the same dollop as I would have of FU, and mixed that, it would be very big surprised. The other big difference is the deep lovely dark colour and then the lovely tint colour: The first is more reddish, the second less reddish more greenish - lovely colours - the shift between the two is the largest a painter will get for a paint, I think.

PPS I love granulation, and the unique behaviour of French Ultramarine... to each her/his own. Vive la difference! Cheers!

Last edited by KolinskyRed : 09-05-2017 at 11:56 AM.
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Old 09-06-2017, 09:58 AM
JaPizzy JaPizzy is offline
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Re: What's the big deal about Granulation???

A bit off topic as it's not about watercolors, but I wonder if this is the reason that the ultramarine blues I've tried to spray have been so hard to get a decent flow out of, because the pigment is "clumping" and causing the clogging in the airbrush's tip. It's why I've always avoided it, and used another "blue violet" type color in it's place.
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Old 09-06-2017, 10:33 AM
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Re: What's the big deal about Granulation???

Quote:
Originally Posted by JaPizzy
A bit off topic as it's not about watercolors, but I wonder if this is the reason that the ultramarine blues I've tried to spray have been so hard to get a decent flow out of, because the pigment is "clumping" and causing the clogging in the airbrush's tip. It's why I've always avoided it, and used another "blue violet" type color in it's place.

That seems a reasonable conclusion.... especially if it's just the ultramarines that's doing this for you, seeing as it's the only one that undergoes flocculation .
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Old 09-13-2017, 01:13 AM
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Re: What's the big deal about Granulation???

You know, it's funny. It's like asking, "What's the big deal with impasto?" and yet oil painters love it. I adore granulation. Why? Because I find it's velvety pattern and the way it relates to and expresses the texture of the paper beautiful. I like that it comes from using water, and it's the "sediment" left behind. Is more excuse needed then that for anything we choose to do as artists?

Of course, no need to use it if you don't like it, but that (I presume) is why it's liked.
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Old 09-29-2017, 10:15 AM
Miaow Miaow is offline
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Thumbs up Re: What's the big deal about Granulation???

Quote:
Originally Posted by KolinskyRed
W&N Ultramarine Blue, and then a Phthalo Blue... two more different characteristics between paints would be tough to find! Granulation and flocculation (the later specific to FU) in the paint is promoted/enhanced by the hardness of the water we use in the mix. So, the harder the tap water the stronger the effect. You could, just for fun, try some very soft water... a gallon of Distilled Water (Reverse Osmosis on the label somewhere) from the grocery store (very cheap) might be interesting to try - to see if there is a difference. Just a thought.

<snip>

Re: hardness of the water as it relates to granulation: thanks for the tip!! I've been using distilled water for my watercolour, because we have very hard water, and I haven't been getting the granulation that I want - Thanks to your post, I'm going to use the plain tap water next time I paint. I'm with you, I love granulation. I love the way watercolour colours have such different "personalities".

I'm not entirely certain about the difference between granulation and flocculation though - I thought they were the same?
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Old 09-29-2017, 10:32 AM
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Re: What's the big deal about Granulation???

HI Miaow, I think that flocculation involves clumping of material together due to chemical reactions, and that granulation is the settling out of larger particles into the texture of the paper. I have a product from Winsor and Newton for my watercolours called "Granulation Medium" which I can use to increase the effect. Good fun.

Last edited by KolinskyRed : 09-29-2017 at 10:34 AM.
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Old 10-01-2017, 10:31 PM
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Re: What's the big deal about Granulation???

One place that some artists love granulation is for shadows. This is why Daniel Smith's "Moonglow" dark violet can be such a useful color to have. I'm not happy that they have discontinued their line of acrylics paints, but at least I managed to "rescue" a half-dozen tubes of this beautiful color for foliage shadows, storm atmospheric effects, etc.! PB29+PG17+PR177 (Could easily be duplicated or reformulated with a more-lightfast red.)
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