0800 466 378 (NZ)
+64 9 415 4588
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Klen Anti-Eff

anti-effANTI-EFF is a blend of acids ideal for removal of efflorescence stains from all masonry and stone surfaces prior to sealing and protection.


On concrete surfaces, ANTI-EFF should be applied as a diluted solution (one part of ANTI-EFF to 25 parts of water) and should never be any more concentrated than 1:15. Concentrated ANTI-EFF is corrosive and will cause pitting of concrete. Contact time should be limited to no more than 3 minutes. Clay and Terracotta surfaces are more resistant to the effects of acid and longer contact times and stronger solutions may be used. The surfaces should be rinsed and neutralized after application. In all cases it is recommended that a small patch of surface be tested before full-scale treatment. Always apply ANTI-EFF to a dampened surface. Always check in an inconspicuous area to ensure that no discolouration or patchiness occurs following application. Uniform application of ANTI-EFF is essential.


ANTI-EFF is a highly corrosive liquid containing a blend of Nitric and Phosphoric acids. Wear goggles and rubber gloves. Operators should refer to the MSDS for safety precautions.


Since the use of this product is beyond the control of either seller or manufacturer, their only obligation shall be to replace any quantity of product which is proven defective. They cannot assume any risk or liability in excess of the purchase price of the product itself, which does not include labour or any consequential damages resulting from the use of this product. Determining the suitability of this product for any intended use shall be solely the responsibility of the user. ALWAYS TEST FIRST.


Established in 1982, the SSL has grown and developed over the years to it’s present status, with two Companies now operating.. These being SSL Distributors Ltd.(previously known as Sunbather Systems Ltd), and  Ultra Corporation Ltd.


Free Phone 0800 466 378 (New Zealand)
Tel.: +64 9 415 4588