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Crys-Talc® 4H-4HC

1 of 6 products in this brand
Crys-Talc® 4H-4HC is a high-purity, high-brightness, platy, medium-sized talc used in interior and exterior coating, adhesive, and sealant formulations to reduce hard settling, improve sag resistance, and maximize prime pigment extension. Crys-Talc® 4H is used in solid-color and semitransparent wood stains to prevent tannin bleed and improve gloss uniformity without introducing abrasive characteristics. Crys-Talc® 4H has a platy, hydrophobic structure used in  architectural and industrial primers to improve barrier properties which impart corrosion resistance and stain blocking  ability.

Functions: Filler

Chemical Family: Silicates

Compatible Polymers & Resins: Polyethylenes (PE), Polypropylenes (PP), Polyvinyl Chloride (PVC)

End Uses: Primer, Stains

Synonyms: Agalite, Talc (Mg3H2(SiO3)4), Talcum

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Chemical Name
CASE Ingredients Functions
Plastics & Elastomers Functions

Features & Benefits

Labeling Claims

Applications & Uses

Compatible Substrates & Surfaces
Coating Type
Applications

Crys-Talc® 4H can also be used in polymer applications for improving stiffness, HDT, and dimensional stability in natural color applications requiring higher brightness. It is used in polyethylene, polypropylene, PVC and other plastic based applications to achieve maximum stiffness and is available in densified or compacted form to improve feeding, enhance extrusion throughput and reduce dusting. Crys-Talc® 4H may also be use in rigid packaging, appliances, and thermoformed products to:

  • increase modulus of elasticity, modulus of rupture, and HDT
  • reduce water diffusion, weight gain and swell in water, loss of elasticity and rupture modulus in moist environments
  • improve warpage, creep, dimensional stability and elastic recovery

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Fineness of Grind4.5Hegman gauge
Particle Size (Passing through 200 Mesh)98.0%
Brightness90.0Minolta “Y”
Specific Gravity2.8
Moisture Contentmax. 0.5wt%
Loose Bulk Density16.0lbs/ft³
Compacted Bulk Density48.0lbs/ft³
Particle Size Distribution
ValueUnitsTest Method / Conditions
Median Diameter5.7micronsSedigraph
Mineral Properties
ValueUnitsTest Method / Conditions
Talc Contentmin. 95%X-Ray Diffraction
Carbonates Contentmax. 5%X-Ray Diffraction

Packaging & Availability

Country Availability
Regional Availability
  • Canada
  • USA