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RB-MW Water dispersible chemical release agent

Description :

A ready to use water dispersible, safe, effective release agent which is friendly to the environment. RB-MW is applied to mould and shutter faces prior to casting concrete in order to achieve a clean release. After removal of the formwork, the resultant concrete has a smooth, hard, uniform finish, with reduced incidence of blow holes. RB-MW can be diluted 1 to 1 by water and applied to the formwork by spray in the form of a light uniform mist coating.

Usage :

  • RB-MW is formulated for application to plywood, timber, steel and plastic faced formwork and moulds, prior to casting concrete, to ensure a clean release.

Features and benefits :

  • A chemically active release agent blended with water
  • Physical state: Liquid
  • Color: Amber
  • SG finished product: 0.85 –0.87 at 25°C
  • Chloride content: Nil

How to use :

Apply before the first casting and thereafter re-apply immediately after stripping and cleaning the mould. Lightweight horticultural sprayers are ideal as RB-MW is finely atomized to give a uniform coating. Excessive application should be avoided. Alternatively, application may be made by a fine haired brush, only a very thin coating should be made and any excess removed.
If after the first application, the RB-MW is completely absorbed into new timber or plywood, a further application should be made before filling the moulds or formwork.
Action:
RB-MW reacts chemically with cement to impart excellent release properties to treated surfaces. Concrete cast against surfaces coated with RB-MW exhibit a smooth, hard, uniform finish. RB-MW has no negative effect on the properties of concrete nor will it impair the adhesion of subsequent surface treatments when applied at the recommended coverage rates.
Coverage:
The coverage rate for RB-MW is between 30 to 40 m²/liter when spray applied depending on smoothness and porosity of the formwork used. Coverage is considerably enhanced on marine ply and steel faced forms.
Note:
Progressively better results are obtained on plywood and timber moulds as they become impregnated and the operatives become accustomed to working with the release agent. RB-MW in general, may be used over timber moulds etc., which have been treated with other mould oils, providing excess has been removed.