The "Swatch This" Challenge Day 1

BUFF  TITANIUM

Buff Titanium is exclusive to Daniel Smith. It is described this way on their website "Spatter or drop a brush load of Buff Titanium into a moist wash and enjoy the pigment displacement, it is especially effective used that way to make clouds in the sky. Unique to DANIEL SMITH, Buff Titanium resembles the ecru shades of sand and antique lace and simulates the porous texture of an eggshell. It is a most welcome neutral, with its’ semi-transparent to opaque, non-staining properties. Pre-mix Buff Titanium with Quinacridone Rose or Perinone Orange for subtle hues and matte surfaces ideal for the velvety petals of your favorite flowers. Mix with Indigo or Van Dyke Brown to create slate-colored shadows and soft feathers. Glaze a dried landscape with a misty, atmospheric mood". 
Buff Titanium is one of artist, uuthor, and reigning color expert, Jane Blundell's 12 pigment selection (see her articles on the Daniel Smith website). Blundell likes this pigment for its granulation and that it creates nice pastels, but more importantly it is a palette must have for sand, marble and flesh. 
Artist Jane Davenport likes the semi-opaque nature of Buff Titanium and uses it as an undercoat for staining colors making them less apt to penetrate deep into the paper before having a chance to move them around.

Technical data:
Pigment: PW 6:1 | Series: 1
Lightfastness: I – Excellent
Transparency: Semi-Transparent
Staining: 1-Non-Staining
Granulation: Granulating

 What is  a "Granulating Color" - If you want to geek out a little, Daniel Smith has a brochure on their website that is quite scientific, but I will do my best to simplify it here. Pigments have different sized particles as part of their properties. Certain colors, like the Quinacridones and Pthalos have little tiny particles and go on the watercolor surface quite smoothly. Other pigments, especally any in the Daniel Smith Primatek range, as well asthe earth pigments, ultramarines and cadmiums, have much larger particles which want to clump together and lay on top of the surface. Using a granulating color on a rough watercolor paper enhances that characteristic with very interesting and somewhat uncontrollable results. Left to their own, granulators are good rendering exceptionally realistic textures like rust and landscape features.