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Dar-Tech Portaryte® B45

CAS Number
7727-43-7
Chemical Name
Barium sulfate

Dar-Tech Portaryte® B45 is produced from carefully selected, very white, naturally occurring baryte. The standardized quality of Dar-Tech Portaryte® is guaranteed by means of an ISO 9001-certified quality management plan. The chemical composition of the raw material and the finished product is closely monitored, and the particle size is kept within a narrow variation. Fine grades of Dar-Tech Portaryte® fillers have been specially developed for powder coating applications. They are successfully used as an alternative for fine synthetic blanc fixe in high-gloss applications.

Properties

Physical Form
Powder

Identification

CASE Ingredients Functions
Filler

Product families

Applications

Paints & Coatings — Automotive & Transportation
  • Marine Coatings
Industrial — Chemical & Industrial Manufacturing
  • Industrial Adhesives & Sealants
Automotive & Transportation — Coatings & Finishes
  • Marine Coatings
Adhesives & Sealants — Industrial & Assembly Adhesives
  • Industrial Manufacturing
Paints & Coatings — Industrial Coatings
  • Industrial Coatings
Automotive & Transportation — Transportation
  • Marine

Product Families

CASE Ingredients — Additives
  • Fillers & Extenders
Base Chemicals & Intermediates — Technical Salts & Inorganics
  • Inorganics

Other characteristics

Brand
Dar-Tech Portaryte
Synonyms

Barium sulphate, Barium white, BaSO4, E 340, Liquibarine, Micropaque

Markets
  • Adhesives & Sealants
  • Automotive & Transportation
  • Industrial
  • Paints & Coatings
Technology
  • Base Chemicals & Intermediates
  • CASE Ingredients
Chemical Inventories
  • DSL (Canada)
  • TSCA (USA)
Country Availability
  • Canada
  • USA
Benefits and Features

Portaryte® micronized functional fillers are used in a broad range of applications. The most important characteristics are:; excellent chemical inertness (outdoor and chemical applications); low level of impurities, such as transition and heavy metals; low content of quartz (low abrasiveness, no health issues); Because of these characteristics, Portaryte® fillers are successfully used in an extended range of paint & coating applications such as industrial, marine and powder coatings. Portaryte® fillers are also used in various industrial sealant and adhesive applications due to their excellent chemical resistance. The exceptionally high density of baryte makes Portaryte® a filler of choice for sound deadening in automotive and domestic applications (e.g. polyolefin sewer pipes)

Base Chemicals Functions
Filler
Coating End Applications
Powder Coating
Certifications and Compliance

Clean Water Act (CWA) Certified; Comprehensive Environmental Response Compensations & Liability Act (CERCLA); ISO 9001

Technical data

Table 1 of 3

10 rows
CharacteristicValueUnitMethod
Oil Absorption9.0g/100gISO 787/5
Color (D65;10º, L*)96.0—CIELAB DIN 6174
Color (D65;10º, a*)0.9—CIELAB DIN 6174
Color (D65;10º, b*)3.0—CIELAB DIN 6174
Moisture Content0.1%ISO 787/2
pH8.5—ISO 787/9
Density4.4g/cm³—
Bulk Density2.3g/cm³ISO 787/11
Hardness3.5—Mohs’ scale
Refractive Index1.64——

Table 2 of 3

8 rows
CharacteristicValueUnitMethod
Percentage Passing on Individual Sieve (45 μm)0.7%Wet sieved
Percentage Passing on Individual Sieve (25 μm)84.0%Laser diffraction
Percentage Passing on Individual Sieve (15 μm)58.0%Laser diffraction
Percentage Passing on Individual Sieve (10 μm)37.0%Laser diffraction
Particle Size (D10)1.0μmLaser diffraction
Particle Size (D50)8.0μmLaser diffraction
Particle Size (D90)30.0μmLaser diffraction
Particle Size (D97)45.0μmLaser diffraction

Table 3 of 3

7 rows
CharacteristicValueUnitMethod
Barium Sulfate (BaSO₄)96.7wt%XRF
Strontium Sulfate (SrSO₄)1.8wt%XRF
Silicon Dioxide0.9wt%XRF
Calcium Oxide (CaO)0.2wt%XRF
Magnesium Oxide (MgO)0.04wt%XRF
Ferric Oxide (Fe₂O₃)0.05wt%XRF
Loss on Ignition (1000°C, 1 hour)0.3wt%XRF

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