- Makes surfaces water-repellent
- Prevents capillary rise of moisture
- Deep penetration
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Makes surfaces water-repellent
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Prevents capillary rise of moisture
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Deep penetration
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Increases surface strength
CERESIT® CO 81 is used for sealing existing brickwork against capillary rise of moisture. Seals capillaries and fine cracks of up. The silicification fluid can be injected with or without pressure. Experience has shown that the greatest effect is achieved with pressure injection. Durable sealing against capillary water absorption, even with later formation of secondary capillaries. Also suitable on damp brickwork.Available pack size: 10l, 30kg
Before applying CERESIT CO 81, make sure the substrates are level, solid, load-bearing, clean, gypsum-free and free of substances which may impair adhesion. The surfaces to be sealed must be crack-free.
CO 81 is either brushed or sprayed on. In the case of onlyslightly absorbent substrates, dilute CO 81 with water at aratio of 1 : 1. Immediately after the CO 81 coat was soakedup by the substrate, apply a slurry layer wet-on-wet. After theCR 65 layer is sufficiently hard, further slurry layers can beapplied. If CP 43, CP 44, CP 45 or BT 21 are to be used forsurface sealing, apply these products onto the second slurrylayer, after application of a priming coat (varies dependingon the product).
On dry or slightly damp substrates CERESIT CO 81 is brushed or sprayed on as a priming coat for CP 43, CP 44 and CP 45. After approx. 30 minutes, the respective CERESIT product is applied onto the slightly damp surface.
CERESIT CO 81 is designed for sealing existing brickwork against capillary rise of moisture. Seals capillaries and fine cracks of up. The silicification fluid can be injected with or without pressure.
For use on damp substrates, e.g. in the wall/socle area. In combination with CR 65 sealing slurry for waterproofing and producing dry substrates before sealing with CP 43, CP 44, CP 45 or BT 2
Before the start of the repair work, preliminary examinations are necessary to ensure the desired result. Particularly important are the extent of moisture penetration in the existing structure and the presence of deleterious salts. As a rule, brickwork can only be durably sealed against moisture if supporting measures are taken.