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Spacerite® S-11 Alumina Trihydrate (ATH)

SpaceRite S-11 is a fine crystalline, aluminum trihydroxide with uniform particles averaging 1/4 micron in diameter. It is an organic-free pure white powder produced by a proprietary precipitation process that closely controls particlesize distributions. SpaceRite S-11 can also replace other extenders providing enhanced performance and benefits in coatings and adhesives.

Brand: Spacerite (2 products)

Functions: Filler, Flame Retardant

Chemical Family: Aluminum Compounds, Calcium Salts, Silicates, Trihydrates

Labeling Claims: Low VOC

Compatible Polymers & Resins: Alkyds

Features: Abrasion Resistance, Chemical Resistance, Chemically Inert, Color Retention, Corrosion Resistance, Easy Handling, Excellent Dispersibility, Excellent Stability, Flame Retardant, Good Gloss Retention, Higher Filler Content, Improved Substrate Wetting, Low VOC, Moderate Yellowing Tendency, Narrow Particle Size Distribution, Weather Resistance

Technical Data SheetSafety Data Sheet
Enhanced TDS

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Chemical Family

Aluminum Compounds,

Calcium Salts,

Silicates,

Trihydrates

Chemical Name

Alumina Trihydrate (ATH),

Calcium Aluminum Borosilicate

CASE Ingredients Functions

Filler,

Flame Retardant

CAS No.
21645-51-2
EC No.
244-492-7
Technologies

CASE Ingredients

Product Families

CASE Ingredients — Additives

Fillers & Extenders,

Functional Additives

Features & Benefits

Labeling Claims

Low VOC

CASE Ingredients Features

Abrasion Resistance,

Chemical Resistance,

Chemically Inert,

Color Retention,

Corrosion Resistance,

Easy Handling,

Excellent Dispersibility,

Excellent Stability,

Flame Retardant,

Good Gloss Retention,

Higher Filler Content,

Improved Substrate Wetting,

Low VOC,

Moderate Yellowing Tendency,

Narrow Particle Size Distribution,

Weather Resistance

Product Highlights
  • Narrow particle size distribution (.25 micron median)
  • Low oil absorption
  • High brightness
  • Clean white color
  • Low specific gravity
  • Non-abrasive
  • Excellent dispersion characteristics
  • Chemically inert
  • UV transparent

Applications & Uses

Markets

Building & Construction,

Paints & Coatings

Applications

Paints & Coatings — Building & Construction

Architectural Coatings

Building & Construction — Building Envelope & Roofing

Architectural Coatings

Compatible Polymers & Resins

Alkyds

Coating Type

Plastisol Coating,

Powder Coating,

Primer,

Radiation Curable Coating,

Solventborne Coating,

Solventless & High Solids Coating,

Varnishes,

Waterborne Coating

Recommended Application
  • Architectural Coatings
  • High solids/low VOC coatings
  • UV coatings
  • Organic colored pigments

Properties

Color

White

Physical Form

Powder,

Solid

Appearance
White
Chemical Properties
ValueUnitsTest Method / Conditions
Al(OH)₃99.6%Difference
Na₂O (Soluble)0.04%Flame Emissions Photometry
Moisture0.5%Microwave
Physical Properties
ValueUnitsTest Method / Conditions
Brightness (% Z)99.5%Z value of the XYZ Tristimulus divided by
Particle Size d500.31μmHoriba 5100
Density2.42g/cm³-
Loose bulk density0.36g/cm³Modified ASTM B212-89
OIl Absorption28.0g/100g-
Hardness (Mohs)3--
Packed Bulk Density0.49g/cm³Modified ASTM B527-85
Refractive Index1.57--
Gallons per pound0.0495--
Typical Properties
ValueUnitsTest Method / Conditions
ColorWhite--
pH (Not a Buffer)9.8-ASTM 1208