K-SPERSE® 131

Identification & Functionality

Chemical Family

Calcium Salts

CASE Ingredients Functions

Dispersant,

Wetting Agent

Technologies

CASE Ingredients

Product Families

CASE Ingredients — Additives

Dispersing & Wetting Additives

Features & Benefits

CASE Ingredients Features

Corrosion Resistance,

Good Color Stability,

High Gloss,

High Pigment Loading,

Reduces Dispersion Time

Advantages

• Faster dispersion times
• Better color development and gloss
• Lower dispersant levels
• Better transparency of transparent pigments
• Higher pigment loading due to lower viscosity of pigment paste
• Improved corrosion resistance
• No deleterious effect on catalyst performance

Applications & Uses

Compatible Polymers & Resins

Acrylics,

Alkyds,

Chlorinated Rubbers,

Polyesters,

Polyurethanes (PU)

Compatible Substrates & Surfaces

Asphalt

Coating Type

Solventborne Coating

Ink & Toner Type

Solventborne Ink

Applications

K-SPERSE 131 is recommended for use as a dispersant for organic and inorganic pigments in most types of resin systems, including alkyd, acrylic, polyester, polyurethane, chlorinated rubber and bituminous. It is particularly recommended for difficult to disperse pigments.

Incorporation

K-SPERSE 131 should be dissolved in the mill base prior to pigment addition.

Typical Usage Levels

Low optimum use levels range from 0.5%-8.0% of K-SPERSE 131 as supplied, based on total pigment weight. The greater the surface area of the pigments used, the greater the level of K-SPERSE 131 will be necessary for proper dispersion. As a guide, we recommend the following approximate amounts of K-SPERSE 131 to use for the following pigments : 

Pigment	Pigment Surface Area	As Supplies mg/m² Pigment	As Supplied per 100 LBS Pigment
Rutile Titanium Dioxide	13 m²/g	0.46	0.6
Phthalocyanine Blue	67 m²/g	0.52	3.5
Transparent Iron Oxide	93 m²/g	0.54	5
High Color Carbon Black	560 m²/g	0.13	7

Follow these guidelines to determine weight percent of K-SPERSE needed per 100 pounds of pigment :

• For most pigments : K-SPERSE level (wt.)= 0.05 x pigment surface area (m²/g)
• For carbon black pigments : K-SPERSE Ievel (wt.) =0.13 x pigment suface area (m²/g)  

Properties

Physical Form

Liquid

Appearance

Clear, Dark amber liquid

Typical Properties

	Value	Units	Test Method / Conditions
% Active	50	%	—
Specific Gravity (25°C)	0.93	—	—
Volatile	Mineral Spirits	—	—

Storage & Handling

Shelf Life

36 months

Storage/Shelf Life

• 36 months from the date of manufacture, when stored at ambient conditions in the original container.
• Keep the container tightly closed and store at room temperature away from direct sunlight.