Struktol Company of America, LLC Calcium Stearate

Struktol Company of America, Calcium Stearateused by the rubber and plastic industries as an effective elastomer processing aid and release agent. The low chloride content of STRUKTOL® Calcium Stearate allows for complete product dispersion in elastomers. Our "GR" version offers low dust and easy handling.

Chemical Family: Calcium & Calcium Compounds

Functions: Processing Aid, Release Agent

Labeling Claims: Food Contact Acceptable

Processing Methods: Extrusion, Injection Molding

End Uses: Pipe Seals, Pipes

Synonyms: Calcium bis(stearate), Calcium distearate, Calcium octadecanoate

Technical Data Sheet

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Identification & Functionality

Chemical Name
Plastics & Elastomers Functions
Composition

STRUKTOL® Calcium Stearate is a high purity, non-wettable, calcium stearate powder manufactured with high quality stearic acid. During manufacture, the particle size, shape, bulk, and purity of STRUKTOL® Calcium Stearate are closely controlled to guarantee product uniformity.

Features & Benefits

Materials Features

Applications & Uses

Plastics & Elastomers End Uses
Plastics & Elastomers Processing Methods
Recommended Applications

STRUKTOL® Calcium Stearate is used by the rubber and plastic industries as an effective elastomer processing aid and release agent. The low chloride content of STRUKTOL® Calcium Stearate allows for complete product dispersion in elastomers.

STRUKTOL® Calcium Stearate reduces extruder pressure build-up of rigid PVC compounds when used as a processing aid during the manufacture of pipe, siding and injection molded fittings.

The low chloride content of STRUKTOL® Calcium Stearate meets the quality and processing demands of polyolefin, polystyrene and polyester manufacture.

STRUKTOL® Calcium Stearate can also be used as a processing aid in wire drawing operations, and as an anti-caking additive in dry blending operations. Some of the benefits of using STRUKTOL® Calcium Stearate are: -

  • LOW IMPURITY : Reduces extruder pressure build-up and minimizes fiber breakage during extrusion and spinning.
  • COLOR STABILITY :High-purity and a unique manufacturing process give this product extreme heat resistance to prevent discoloration and haze formation.

Properties

Physical Form
CLTE - Transverse (-22 to 86°F)
Powder
Appearance
Powder
Typical Properties
ValueUnitsTest Method / Conditions
Ash Contentmax. 10.5%-
Free Fatty Acidmax. 1.0%-
Melting Point150.0°C-
Moisturemax. 4.0%-
Particle Size (% thru 200 mesh)90.0%-
Specific Gravity1.01--

Regulatory & Compliance

Certifications & Compliance
Regulatory Status

STRUKTOL® Calcium Stearate is sanctioned for use by the Food and Drug Administration (FDA) in a number of applications, listed in the following sections of Title 21 of the Code of Federal Regulations:

  • 173.340 Defoaming agents
  • 175.105 Adhesives
  • 175.300 Resinous and polymeric coatings
  • 175.320 Resinous and polymeric coatings for polyolefin films
  • 176.170 Components of paper and paperboard in contact with aqueous and fatty foods
  • 176.200 Defoaming agents used in coatings
  • 176.210 Defoaming agents used in the manufacture of paper and paperboard
  • 177.1200 Cellophane
  • 177.2260 Filters, resin-bonded
  • 177.2410 Phenolic resins in molded articles
  • 177.2600 Rubber articles intended for repeated use
  • 178.2010 Antioxidants and/or stabilizers for polymers
  • 181.29 Stabilizers
  • 184.1229 Calcium Stearate

Packaging & Availability

Regional Availability
  • Africa
  • Asia Pacific
  • Europe
  • Latin America
  • North America

Storage & Handling

Storage and Packaging

Storage Stability :

Unlimited in a cool dry area

Packaging :

50 lb. paper bag