- Country of manufactureGermany
- Drying time20-30 min
Retardera are applied both in lower, and in the top part of a form. There are 11 brands depending on type of cement, filler and the required characteristics of a surface.
This product dries with formation of the waterproof viscous covering reacting with the alkaline environment of cement. Excellent adhesion provides the required characteristics on any elements (vertical, horizontal or inclined). The substance which is slowing down curing of a surface of concrete is a part of a retarder. Depth of penetration depends on type of the used retarder. Drawing is made evenly by a brush or attack by means of an airless spray.
Front elements from concrete;
Small architectural forms
Concrete walls for industrial buildings;
Sound-proof walls, sound barriers;
Combined concrete of all types
How it works?
To put with the roller (a back part of a form) or a dusting (concrete for a paving, instant division, etc.) the product preventing curing of cement on depth from 1 to many millimeters (depending on influence force).
Approximately in 30 minutes, alkalinity of concrete helps active particles of a superficial delay mechanism to move to concrete thanks to availability of free water, it occurs during 1 h - 1 h is 30 min. old.
Next day we wash away cold water under pressure this thin concrete layer which did not harden. Concrete stay duration in shape is also not a problem. Products can be left 3 or 4 days in shape without change of appearance of a surface.