TECMACONS SF-20 is an admixture for concrete, based on synthetic polymers, which, due to its high dispersing power, makes possible a complete and faster hydration of cement granules. It's supplied ready to be used, in liquid state, clear and with a density of 1,2 kg/l. TECMACONS SF-20 is practically free from chlorides (contents in chloride ions: less than 1%) thus not producing corrosion in the reinforcement.

TECMACONS SF-20 fulfils UNE 83.282 standard.

Main function: superfluidising, reduces the amount of water.

The use of TECMACONS SF-20 provides the following advantages:

FRESH CONCRETE:
- Great increase of workability
- Reduces segregation and bleeding
- Easy to be transported and applied, keeping the mass homogenous.
- Reducing or preventing compaction by vibration, thus saving labour.

HARD CONCRETE:
- High increase of mechanical resistance for every age.
- High quality surface finish.
- Improves waterproofing and chemical resistance.
- Increases adherence to reinforcement.