ECA CSR is a surface retarder for the production of washed concrete products using the negative application process. Our surface retarder is a available in ten varieties for varying aggregate exposure depths. The exposure depths are standard values. The results are dependent on the class of cement, water-cement ratio, aggregate grading, and quantity of cement used. Our technical support sta are available to advise you in determining the suitable product for your requirements.
ECA CSR uses in the production of washed concrete surfaces including: façade coverings, soundproof walls, landscaping, concrete products, special components, architectural concrete elements and roughening of concrete segment joints. This product is especially applicable when producing architectural concrete or products with complex forms.
There are ten dierent types of ECA CSR available and these are readily distinguishable by color. The product is easy and economical to apply, usu- ally only one coat of the formwork is needed per application. Aer the required drying time, based on weather conditions, the concrete can be poured. Optimal vibrating of the mix should be determined in the sample tests. When using new, polymer-modified casings, the pH-value is to be checked. With an alkaline surface, we recommend neutralizing the casing before the first ECA CSR application; this can be achieved by cleaning.
