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ICL Phosphate Specialty - HALOX® Company Logo

HALOX® CW-291

HALOX® CW-291 is a white, non-refractive, corrosion-inhibiting pigment used in protective coating systems. It is not recommended for use in immersion or semi-immersion environments. HALOX® CW-291 has the lowest oil absorption of all our borosilicate products and is recommended for use in protective coating systems based on alkyd technology. Because of its low oil absorption, HALOX® CW-291 is specifically suggested for use in high-solids, medium-gloss topcoats, DTM (direct-to-metal) finishes, and self-priming systems. HALOX® CW-291 is compliant with ASTM D 4288-83, specification for calcium borosilicate pigment type 1, class B.

Brand: HALOX (36 products)

Chemical Family: Alkyds, Alkyds (Modified), Borates, Boron-based Compounds, Calcium & Calcium Compounds, Polyurethanes (PU)

Functions: Corrosion Inhibitor, Pigment

Compatible Polymers & Resins: Alkyds, Alkyds (Long Oil), Alkyds (Medium Oil), Epoxies (EP)

Synonyms: Calcium borate (CaB2O4), Calcium hypoborate (CaB2O4), Calcium metaborate (CaB2O4)

Technical Data Sheet

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Chemical Family
Alkyds,
Alkyds (Modified),
Borates,
Boron-based Compounds,
Calcium & Calcium Compounds,
Polyurethanes (PU)
Chemical Name
Calcium metaborate
CASE Ingredients Functions
Corrosion Inhibitor,
Pigment
CAS No.
13701-64-9
EC No.
237-224-5
Technologies
CASE Ingredients,
Pigments & Colorants
Product Families
CASE Ingredients — Additives
Functional Additives
Pigments & Colorants — Functional Pigments
Corrosion Inhibiting Pigments
CASE Ingredients — Pigments & Colorants
Functional Pigments
Mechanism
Anodic passivation and saponification

Features & Benefits

Advantages
  • HALOX® CW-291 has an oil absorption in the mid-30’s range. It is designed to provide early corrosion resistance via anodic passivation and provides synergy with zinc phosphate-based and organic corrosion inhibitors.
  • Can be used alone for medium protection
  • Humidity resistant
  • Ideal for application over treated substrates such as galvanized steel

Applications & Uses

Markets
Paints & Coatings
Applications
Paints & Coatings — Industrial Coatings
Industrial Coatings,
Industrial Maintenance,
Metal Coatings
Compatible Polymers & Resins
Alkyds,
Alkyds (Long Oil),
Alkyds (Medium Oil),
Epoxies (EP)
Compatible Substrates & Surfaces
Metal,
Steel
Coating Type
Top Coat
Use Level
5 - 10 %
Recommended Loading Levels

HALOX® CW-291recommended loading levels range from 5-10% based on total formula weight in primer systems and 2-5% based on total formula weight in topcoat and DTM finishes. PVC levels should range from 40-45% in primers and 15-25% in topcoats and DTM’s.

Applications
  • Medium Oil Alkyds
  • High Solids Alkyds
  • Epoxy Esters
  • Long Oil Alkyds
  • Alkyd Gloss Topcoats
  • DTM Finishes

Properties

Appearance
White Powder
Typical Properties
ValueUnitsTest Method / Conditions
Density2.7g/ml-
Hegman Grind5--
LOI (at 450°C)4.2%-
Mean Particle Size5.7microns-
Moisture Content0.3%-
Oil Absorption28.4lbs/100 lbs-
pH (10% Solution by Weight)10.1--
Solubility in Water0.3%-

Regulatory & Compliance

Certifications & Compliance
ISO 14001,
ISO 9001,
REACH (Europe)
Chemical Inventories
AICS (Australia),
DSL (Canada),
ECL (Korea),
IECSC (China),
INSQ (Mexico),
NCI (Vietnam),
NZIoC (New Zealand),
PICCS (Phillipines),
TCSI (Taiwan),
TSCA (USA)

Storage & Handling

Shelf Life
36 Months