Durastrength® 731

Durastrength® 731 is a low gloss impact modifier imparting excellent mechanical properties to rigid vinyl building products. While providing lower gloss values in co-extruded and monoextruded vinyl capstocks and profiles, Durastrength® 731 maintains impact properties necessary to meet standards across the building and construction market. Durastrength® 731 meets the weatherability of all Durastrength® impact modifier grades and provides the processability and rheology needed by vinyl rigid PVC manufacturers.

Principal: Arkema Plastic Additives

Functions: Impact Modifier

Compatible Polymers & Resins: Vinyls

Processing Methods: Coextrusion

End Uses: Capstock, Decking, Extruded Sheet, Fencing, Rigid PVC, Window Profiles

Safety Data SheetTechnical Data Sheet
View All Documents

Enhanced TDS

Identification & Functionality

Chemical Family
Acrylics & Acrylates
Function
Impact Modifier
Plastics & Elastomers Functions
Impact Modifier
Product Code
MITM15090
Technologies
Plastics
Product Families
Plastics — Polymer Additives
Performance Additives

Features & Benefits

Materials Features
Good Mechanical Properties,
Good Processability,
Good Rheology Properties,
Low Gloss,
Outstanding Weatherability
Product Benefits
  • Durastrength® 731 offers consistent low gloss performance compared to other acrylic impact modifier technology.
  • Durastrength® 731 offers reduced gloss without compromising needed impact strength.
  • Durastrength® 731 was developed specifically for rigid PVC applications using Arkema’s best-in-class acrylic high-rubber impact modifier technology.
  • Like all Durastrength® grades from Arkema, Durastrength® 731 is a proven, weatherable acrylic impact modifier for use in rigid PVC capstock and profile extrusions.


Gloss and Drop Dart Impact Performance of Extruded PVC Sheet

Applications & Uses

Compatible Polymers & Resins
Vinyls
Plastics & Elastomers End Uses
Capstock,
Decking,
Extruded Sheet,
Fencing,
Rigid PVC,
Window Profiles
Plastics & Elastomers Processing Methods
Coextrusion
Markets
Building & Construction
Applications
Building & Construction — Building Materials
Fence, Decks & Rails,
Siding & Trim
Building & Construction — Building Envelope & Roofing
Glazing & Window Elements
Product Application

Durastrength® 731 low gloss impact modifier is recommended for use in tin and mixed-metal stabilized rigid vinyl formulations where reduced surface gloss is preferred for the final weatherable application. As with all impact modifiers for rigid vinyl applications, proper formulation is required to develop the proper balance of shear and mixing during extrusion to maximize impact properties. Durastrength® 731 is ideally suited for vinyl siding capstock, low gloss rigid profile including window, fence, deck and rail applications.

Properties

Physical Form
Powder

Regulatory & Compliance

Certifications & Compliance
ISO 14001,
ISO 45001,
ISO 9001,
OHSAS 18001

Packaging & Availability

Packaging Type
Bags

Principal Information

Group Principal Number
S000003
Principal
Arkema Plastic Additives

Other

Insoluble in (SDS)
Water
Item Number
ITM24012
USA/DOT UN Number
Not Applicable
Physical Properties
ValueUnitsTest Method / Conditions
Bulk Density0.45g/cm³
Sieve Fractionation (Through)15.0%50 Mesh
Material Composition
ValueUnitsTest Method / Conditions
Volatile Organic Compounds (VOC)max. 1.2%
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Autoignition Temperature (SDS)878.0°F
Bulk Density (SDS)110.0g/cm³