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CAPA for spearhead performance
Polyurethane Manufacture
Cast Elastomers

Cast polyurethanes based on CAPA® polyols are growing in importance, not only for traditional end uses such as rolls and mining screens, but also for new leisure applications such as skate or scooter wheels. The performance of CAPA® polyols can be adjusted to meet the most demanding specifications. Typical end uses are:

 

 

  • Skate & Scooter Wheels
  • Wheels
  • Mining Screens
  • Rolls
  • High Clarity Optical Parts


 

 

 

 

The benefits provided by CAPA® products are:

  • CAPA® polyols provide excellent cut and tear resistance.
  • CAPA® based prepolymers are very stable on storage.
  • Lower density of CAPA® based PU's when compared to adipate systems results in savings of ca. 4%.
  • Very low viscosity gives good flow characteristics in prepolymer and polyol components for ease of processing.
  • Very good hydrolysis resistance when compared to adipate based PU's.
  • Low compression set performance.
  • Excellent low temperature flex properties and a wide working temperature range.
  • Transparent, light stable castings when used with aliphatic isocyanates.
  • Good abrasion resistance.
  • Narrow molecular weight distribution and consistent reactivity lead to short and predictable post cure characteristics.



Application datasheets

CAPA 7201A in Cast Elastomers (37 KB) Download
CAPA® 2043 as a Chain Extender (30 KB) Download
CAPA® 3031, a Liquid Triol, as a Chain Extender (41 KB) Download
Cast Elastomer using MDI & CAPA 2200 (61 KB) Download
Cast Elastomers using CAPA 2201A & MDI (46 KB) Download
Cast Elastomers with CAPA & MDI (59 KB) Download
Influence of Initiator in PU Elastomers (135 KB) Download
Rigid Castings from CAPA 3050 (27 KB) Download
Solvent Based 2K PU Formulation Guidelines for CAPA Polyols with Aliphatic Isocyanates (97 KB) Download
The Development of a Polyester Copolymer used to Produce PU Elastomers with High Hydrolytic Stability & Ease of Processing, CAPA 7203 (120 KB) Download



Typical products

  CAPA 2043 400Mwt, BDO initiated diol
  CAPA 2077A 750MWt, HDO initiated diol : upgraded hydrolysis resistance
  CAPA 2200 2000MWt, NPG initiated diol with faster reactivity
  CAPA 2200P 2000MWt, NPG initiated diol with faster reactivity : upgraded reactivity & low viscosity
  CAPA 2201 2000MWt, NPG initiated diol
  CAPA 2201A 2000Mwt, NPG initiated diol : upgraded hydrolysis resistance
  CAPA 2205 2000MWt, DEG initiated diol
  CAPA 3031 300MWt, TMP initiated triol
  CAPA 3050 540MWt, TMP initiated triol
  CAPA 3201 2000MWt, TMP initiated triol
  CAPA 7201A 2000MWt, PTMEG initiated diol

 
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