Technical datasheet

Clearstrength® C-859

Supplied byArkema- Last Updated on Nov 6, 2025

Clearstrength® C-859 by Arkema Additives is a methylmethacrylate-butadiene-styrene (MBS) core-shell grade. It acts as a impact modifier.
  • It is designed for injection molding, extrusion and calendering opaque applications.
  • It exhibits low-temperature impact performance and processability.
  • It offers good color stability, surface finish, high level of gloss and vicat.
  • It is recommended for use in PVC and C-PVC pipes & fittings, furniture films, indoor profiles, high quality technical films and edge-bands.
  • Clearstrength® C-859 is commonly used in formulations for food contact or drinking water conduction.
Product family:
Chemical family:
Product Type:
CAS Number25053-09-2
Chemical Composition:Methylmethacrylate-butadiene-styrene
AppearancePowder

Benefits

Good Color Stability|

Gloss Effect|

Good Durability|

Good Impact Resistance

Compliance

Food Contact Approval
Yes

Applications

Recommended markets

Applications

Conversion mode

Extrusion|
Injection Molding|
Calendering

For which polymer

Thermoplastics|
Polyvinyl Chloride (PVC)

Availability

Product Status:COMMERCIAL
Regional Availability:North America| Central and Eastern Europe| South and Central America| Western Europe| Asia / Pacific

Clearstrength® C-859 properties

Other properties

PropertiesValue & unitTest conditionTest method
Density, Bulk0.39 g/cm3
Particle Size< 2 %On 18 mesh
Specific Gravity1.02
Volatile Content< 1 %

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