Set Retarding and Water Reducing with Extended Set Control

EUCON RETARDER 100 is a synthetically produced liquid water-reducing and set retarding admixture for concrete. It is a modified sodium gluconate. EUCON RETARDER 100 does not contain calcium chloride or other potential corroding materials and may be used in the presence of aluminum or zinc embedments. EUCON RETARDER 100 may be used at varying dosage rates to achieve extended set times compared to a control mix of up to 30 hours. Extended set times are frequently needed on bridge decks where the added dead weight of the concrete will cause deflection and a lack of bond to reinforcement and excessive cracking. It is compatible with air-entraining agents, waterproofers and calcium chloride.

Features & Benefits

  • Retards setting characteristics
  • Improves finishability
  • Improves workability
  • Reduces water requirement
  • Reduces segregation, keeping the mix cohesive
  • Increases strengths
  • Improves finished appearance
  • Reduces cracking
  • Reduces permeability
  • Non staining


  • Hot weather concrete placement
  • Architectural concrete
  • Concrete requiring water reduction and set time control
  • Prestressed concrete

Specifications / Compliances

  • ASTM C 494, Type B & D
  • AASHTO M 194
  • CSA Standard CAN3 A266.2-M78


EUCON RETARDER 100 is packaged in bulk, 275 gal (1041 L) totes, 55 gal (208 L) drums or 5 gal (18.9 L) pails.