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    Flexcrete - Steel Reinforcement Protector 841
    • Flexcrete - Steel Reinforcement Protector 841

    Flexcrete - Steel Reinforcement Protector 841

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    £48.65
    Tax excluded
    £58.38 Tax incl.

    Flexcrete Steel Reinforcement Protector 841 consists of two components, a cementitious powder and a polymer dispersion which react chemically together to passivate, with the aid of corrosion inhibitors, and protect steel reinforcement.

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    Flexcrete Steel Reinforcement Protector 841 consists of two components, a cementitious powder and a polymer dispersion which react chemically together to passivate, with the aid of corrosion inhibitors, and protect steel reinforcement.

    Steel Reinforcement Protector 841 has excellent adhesion to steel and concrete allowing high bond strengths with Flexcrete Repair Mortars. In additition, it forms a highly alkaline coating with a degree of elasticity which not only protects the steel from aggressive acid gases, moisture and chlorides, but passivates the steel surface chemically to prevent further rust formation.

    Corrosion preventative flexible coating for steel reinforcement. Used prior to the application of one of Flexcrete’s concrete repair mortars.

    Application: apply with a brush.

    Advantages

    • Brush applied in two coats with minimal inter-coat waiting time.
    • Economic coating gauged as required to the correct consistency using mixing kit provided.
    • High alkalinity and corrosion inhibitors rapidly reinstate passivating layer around reinforcement which in turn gives long term corrosion protection.
    • Tolerant to lower levels of steel preparation.
    • Dense matrix protects the steel from aggressive acid gases, moisture and chlorides.
    • High insulation properties prevent further electrochemical corrosion.
    • Produces a hard coating with a degree of elasticity.
    • Excellent adhesion to steel ensures adequate pull-out resistance is achieved.
    • Non toxic when cured.


    Preparation

    Reinforcement should be cleaned, preferably by the use of wet grit blasting to remove any loose rust or scale, back to a bright metal surface finish such as to Sa 2½, as defined in BS 7079: Part A1/ISO 8501 (SSPC.SP10) where possible. Alternatively, shot, water or equivalent blast cleaning techniques may be used.

    If chlorides are absent from the concrete or environmental constraints preclude the use of blast cleaning, hand held power tools capable of achieving the necessary preparation can be used. Metal prepared in this way should be to St 2 or St 3 as defined in BS 7079: Part A1/ISO 8501 (SSPC.SP2 or SSPC.SP3).

    Mixing

    Mix as much material to apply within the working life. Place sufficient Component A (liquid) into a suitable mixing container and add the corresponding quantity of Component B (powder).

    Initial Mixing Ratio:

    • Component B : Component A 3:1 by volume
    • Component B : Component A 4:1 by weight

    Mix together thoroughly for 2-3 minutes to a lump free consistency. Smaller amounts are mixed by hand, and larger amounts with a low-speed electric mixer in order to entrap as little air as possible. The mixed materials should have a brushable, barely dripping consistency. If necessary, the consistency can be adjusted by the addition of one or other of the two components. Do not add water or other materials.

    • Note - These instructions must be adhered to as Flexcrete will not be responsible for failure due to incorrect mixing.

    Placing

    Apply the first coat, by brush, onto the reinforcement as soon as possible, but no longer than 24 hours after preparation. Apply to a thickness of approximately 1mm and ensure freedom from pin-holes, voids and misses. To give total protection a second coat is applied when the first is stable but not fully cured, typically 30-90 minutes (maximum 7 days). Inspect on completion and if necessary spot repair to ensure the reinforcement is fully protected. Avoid overpainting onto the adjacent concrete.

    Ideally within 2-6 hours of completion (dependent upon ambient temperature), make good any areas of missing, spalled or removed concrete with the appropriate Flexcrete repair mortar.

    Flexcrete
    FLE-SRP841

    Data sheet

    Type
    cementitious powder and polymer dispersion
    Size
    5KG
    For Use On
    steel and concrete
    Application Method
    Brush
    Interior/Exterior
    Both

    Specific References

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    Flexcrete - Steel Reinforcement Protector 841

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    Flexcrete - Steel Reinforcement Protector 841

    Flexcrete - Steel Reinforcement Protector 841

    £48.65
    Tax excluded
    £58.38 Tax incl.