Armourseal H Surface Hardener

Armourseal H Drum.jpg
Armourseal H Drum.jpg

Armourseal H Surface Hardener


Armourseal H is a blended aqueous solution, free of chlorides. It is especially formulated as a penetrative corrosion inhibitor that significantly hardens the surface and increases the durability of concrete.

As a performance &durability enhancer of existing concrete structures, Armourseal H:

• Densifies and hardens the surface layer
• Stops surface dusting
• Increases impermeability, chemical resistance and durability
• Restores the protective properties of the concrete against reinforcement corrosion.
• Repairs cracks up to 1mm.

On new hardening concrete, Armourseal H:

• Reduces water loss by about 40%
• Promotes efficient cement hydration
• Stops surface dusting
• Reduces surface cracking
• Increases surface hardness, impermeability and durability
• Enhances concrete protective properties against steel reinforcement corrosion

As a primer for most cementitious renders and polymeric coatings, Armourseal H:

• Increases the adhesive bond strength of the renders and polymeric coatings

As a treatment for brickwork, Armourseal H:

• Works as a hardener and durability enhancer of brickwork joints

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• Restoration of degraded concrete structures (approved for use on Heritage sites).

• Dust proofing of factory floors.

• Surface hardening and abrasion resistance of concrete surfaces i.e. floors, road works, bridge decks etc.

• Reinstatement of poorly finished concrete.

• Primer for cementitious render.

• Water retention agent for new hardening concrete.


Surface Preparation:

Armourseal H must be applied to a clean surface free of contaminants. Pressure washing is recommended as minimum preparation.


Armourseal H is normally applied as a single coat, usually in the range of 3 – 5 square metres per litre. But if double coating is deemed necessary for badly degraded concrete, the second coat can be applied after 2 to 4 hours, when the first coat is fully impregnated into the concrete.

Curing time:

Not applicable. Treated concrete can be put into service as soon as the surface is dry. Wash equipment immediately after use with water.