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Irgastab® PUR 70

Technical Datasheet | Supplied by BASF
Irgastab® PUR 70 by BASF is a BHT- & amine free, liquid heat stabilizer blend for polyols. Exhibits good resistance to scorch, fogging and textile staining. Offers low VOC and FOG emissions, outstanding gas-fading resistance and extremely low light-induced discoloration. It allows dust free handling, automatic dosage and shortening of mixing time. Recommended for the manufacture of polyether- and polyester-based flexible foams and PUR flexible foams in automotive applications as per VDA 278 10/11. Irgastab® PUR 70 can also be applied in combination with additional antioxidants, co-stabilizers (e.g. phosphites), and/or light stabilizers (e.g. HALS, UVA). Its recommended use level in slabstock polyol applications ranges between 0.4-0.45% and in molding polyol grades the use level ranges between 0.05-0.1%.
Product Type
  • Antioxidants
  • Heat Stabilizers
Physical Form
Liquid
Appearance
Yellow, clear
Product Status
COMMERCIAL
Applications/ Recommended for
  • TPE and TPV > TPU (or TPE-U)
  • Other Thermoplastic > Other Polyester
  • Automotive/ Transportation
  • Foaming > Flexible foams

Irgastab® PUR 70 Properties

Property

Value & Unit
Test Condition
Test Method
Viscosity
350 - 500 mm2/s
(At 40°C)
Density
0.95 - 1.10
(At 20°C)
Vapor Pressure
< 0.1 mbar
(At 20°C)

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