Sika Rugasol MH Surface Retarder 10ltr




Sika® Rugasol® MH is a surface retarder used mainly for on site exposed aggregate work. It is used to expose aggregate on formed Portland cement based concrete surfaces, both vertical and horizontal. Sika® Rugasol® MH is used where concrete strengths are less than 20 MPa. (For concrete strengths greater than 20 MPa, use Sika® Rugasol® MH Extra.) Sika® Rugasol® MH retards the setting process of cement on the surface of concrete in contact with the treated formwork to a depth of approx. 3 - 5 mm.


Sika® Rugasol® MH provides an efficient, economical method of obtaining a rough bonding surface without the need of hacking, chipping or sandblasting.

It can be painted directly onto formwork for:

▪ Walls

▪ Ceilings

▪ Vertical construction joints

▪ Precast panels


Sika® Rugasol® MH dries on the formwork to form a tough, water-insoluble, abrasion resistant film. It is not affected by light foot traffic or by light showers. Forms may be coated before or after erection. Reinforcing steel is placed as usual. The depth of retardation depends upon the thickness of the coating, the time elapsed before the retarder is removed, the cement content and the quantity of water in the mix. The ambient temperature will also affect the depth of retardation.


  • It can provide a decorative architectural finish to precast or insitu concrete surfaces.
  • Can be applied to most types of clean formwork such as steel, timber, plywood, etc.
  • Can be used in conjunction with Sika® Rugasol® C to provide constant aggregate exposure to both vertical and horizontal surfaces.


Chemical Base Solvent based emulsion

Packaging 10 litres

Appearance / Colour Pale red liquid

Shelf Life Shelf life is at least one (1) year

CODE: N30493092


SKU N30493092
Brand Sika

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