EFF OFF™ Efflorescence Remover 5Ltr
EFF OFF™ Efflorescence Remover 5Ltr
EFF OFF™ Efflorescence Remover 5Ltr

EFF OFF™ Efflorescence Remover 5Ltr

£34.98 INC VAT
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  • Estimated Delivery:Jun 26 - Jun 30

  • Free Mainland UK Delivery : On Orders Over £100


Before and After

Eff Off applied to new build brick work.

Product Description

EFF OFF™ is an acid free efflorescence salts remover, it contains a blend of organic compounds, surfactants and activators and can be used on “new build” homes of up to six months old.

Unlike most other efflorescence removal products, EFF OFF™ is free from caustic acids, (most are hydrochloric or sulphuric) and removes surface salts.

The active components combine with salts in the building substrate and renders them soluble in water allowing for easy rinse away, this removes efflorescence and prevents the cycle from continuing.

EFF OFF™ can be used on bricks, masonry, render and concrete. It is also safe to use on terracotta, porcelain, granite, marble and almost any mineral based hard substrate. It is not intended as a calcium deposit remover, these are usually not water soluble and will require dissolving with an alternative product.

Key Features

• Caustic Acid-Free: Eff Off™ Efflorescence Remover
eliminates the need for harsh hydrochloric or sulphuric acids, ensuring a
gentle yet effective efflorescence removal process.

• Versatile Application: Suitable for use on bricks,
masonry, render, concrete, terracotta, porcelain, granite, marble, and various
mineral-based hard substrates.

• Prevents Recurrence: Specially formulated to stop the
cycle of efflorescence – remove unsightly surface material for good.

Application Guidelines

  1. Surface Preparation: Prior to application, remove grease, dirt, and loose material. Eff Off™ is ready to use; no dilution is required.
  2. Apply a saturated coat at a rate of 5m² per litre using a brush or garden sprayer. Brush in vigorously, allow to dwell for 1 hour, and repeat the process. Leave for up to 24 hours.
  3. Rinsing: Rinse off with a stiff brush or power jet and leave
    to dry. A weak dilution of 50 parts to 1 part Eff Off™ in the rinse water is recommended.
  4. Sealing: Once dry, the surface may be treated with an appropriate sealer for added protection.

Warning: Efflorescence or Hard Calcium Deposits?

Please distinguish between efflorescence and hard calcium
deposits to establish the correct treatment.

Eff Off™ efficiently addresses efflorescence without
damaging the substrate. Efflorescence appears to darken when splashed with
water, while hard calcium deposits remain unaffected.


Store Eff Off™ Efflorescence Remover securely in the original unopened container, in a dry place between 5ºC and 30ºC.

Data Sheets

Important Information

Hard calcium deposit

Image of steps shows an example of hard calcium deposit Not Efflorescence.

Product FAQs

What is efflorescence

Efflorescence is a crystalline, salty deposit that can occur on the surfaces of bricks, masonry, concrete and other mineral based substrates. It is generally a white or off-white colour with a powdery appearance.

What causes efflorescence?

Efflorescence is caused by water vapor migrating through the substrate, bringing the soluble salts to the surface.

Is efflorescence a mould?

Mould grows, efflorescence doesn't. Mould can grow on just about any surface, whereas efflorescence doesn't spread. Mould is a fungus, whereas efflorescence is moisture that once evaporated leaves visible salt deposits.

Is efflorescence harmful to humans?

It is common for people to confuse moulds with efflorescence, whilst unsightly salt deposits are not dangerous or harmful.

Will efflorescence return after I’ve used EFF OFF™

If applied as instructed efflorescence is unlikely to return however to ensure permanent solution, sealing the surface from water penetration (using a penetrating sealer) will help prevent any further efflorescence.

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