Concrete Surface Hardener. 

CHRYSO®Conseal is a product which, when applied to porous concrete surfaces, will reduce dusting, improve the impermeability and impart a harder, denser surface to the concrete.

CHRYSO®Conseal reacts with the free calcium in the concrete to form insoluble calcium silicate within the pores of the concrete.

The product can be beneficially applied to water retaining structures and underground concrete to prevent or reduce water seepage and also to reduce dusting.


Soiled or oil stained concrete should be thoroughly cleaned using a heavy-duty alkaline degreasing detergent.

CHRYSO®Conseal should then be applied to the surface in 2 to 3 treatments, preferably allowing 1 day between each treatment.

First treatment 

CHRYSO®Conseal should be diluted with an equal volume of clean water. After mixing, the product should be applied by brush or spray to the concrete surface. The product should be generously applied to permit as much as possible of the concrete to be absorbed into the surface. Mop up any pools of the product after each treatment as these will dry out to form a glassy layer.

Second and Third Treatments 

The product can be applied, as supplied, 24 hours after the previous treatment until the concrete will no longer absorb further treatment.


Due to the widely varying degrees of porosity in concretes, coverage will vary significantly from job to job. A broad guideline is 4 to 6m2 per litre.


CHRYSO®Conseal is supplied in 25 litre and 200 litre non-returnable drums.

Important Note

The information contained in this document is given to the best of our knowledge and the results from extensive testing. However, it cannot under any circumstances, be considered as a warranty involving our liability in the case of misuse. Tests should be carried out before any use of the product to ensure that the methods and conditions of use of the product are satisfactory. Our specialists are at the disposal of the users in order to help them with any problem encountered.

Further Information

Where other products are to be used in conjunction with this material, the relevant technical data sheets should be consulted to determine total requirements. a.b.e.® Construction Chemicals has a wealth of technical and practical experience built up over years in the company’s pursuit of excellence in flooring and concrete technology.

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