MastaFix20 Cornice Cement Siniat

MastaFix20 is a versatile 3-in-1 cement with a setting time of 20 minutes. Ideal for patching and fixing cornice, MastaFix20 also performs well as a bedding cement ideal for small jobs, such as maintenance and prepaint repairs.

Mixes easily by hand to a creamy gauge and has good body with fast and strong grab. Partially set product can be reworked and used again to deliver a polished finish for mitres. Easy to straight stop and clean. MastaFix20 has an even and gradual 20 minute set that can be accelerated to as little as 5 minutes by extended mixing.

SKU: 6000819 (273789) Category: Tags: , , , ,


  • Chemical setting
  • For patching, cornice and jointing
  • Sets quickly
  • Easy to work with
  • Available in a 10kg bag

Additional Information



Unit Size

10kg Bag


Powder / Dry Compounds (Siniat) – Safety Data Sheet
Plasterboard (Siniat) Installation Instructions
Siniat System (Siniat) Warranty


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