SST®-4 is a white low MW PTFE micropowder with particle size distribution at a mean value of 3-4 µm. SST® products are Shamrock’s PTFE micropowders that are defined by particle size and distribution, molecular weight, crystallinity, surface area, oil adsorption, powder flow, and color. Made primarily from highly controlled recycled PTFE feedstocks, SST® products are used for their ability to provide slip, non-stick, water repellency, texture, release, rub, and abrasion resistance to surfaces.

Functions: Anti-Abrasion Agent, Slip Agent

Chemical Family: Iron & Iron Compounds, Iron Oxides

End Uses: Offset Ink, Powder Coating, Radiation Curable Coating, Solventborne Coating, Solventborne Ink, Waterborne Coating, Waterborne Ink

Technical Data Sheet

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Identification & Functionality

CASE Ingredients Functions
Technologies

Features & Benefits

Product Highlights
  • Rub and Abrasion Resistance  
  • Slip (Low COF)  
  • High Temperature Resistance  
  • Mar/Scuff  
  • Gloss Retention 

Applications & Uses

Compatible Substrates & Surfaces
Cure Method
Use Level
0.5 – 3.0%
Recommended Uses & Known Applications

SST®-4 is frequently used in both the inks and thin-film coatings applications due to its small particle size. SST®-4 is recommended for use in offset and liquid inks. SST®-4 is also recommended for use in powder, water-based, solvent-based, and UV coatings at 0.5-3.0% of the total formula weight. Typical applications include can and plastic coatings.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Hegman Grindmin. 6.5
Melting Point608 / 320˚F / ˚C
NPIRI Grindmax. 2
Particle Size Mean Value3 – 4μm
Particle Size Under (at 99%)10.0μm
Specific Gravity2.15g/cm³

Regulatory & Compliance

Regulatory Status

The components of this product are listed on multiple chemical inventories. For specific information on the applicable chemical inventories, please refer to the product SDS. This product meets the requirements of 21 CFR 175.105, 175.300, 176.170, and 176.180.