CONCRETE BLOCK SEALER is a clear high solids, low VOC waterborne sealer, which when used as part of a complete system, is effective in sealing porous masonry such as concrete blocks, and acts by blocking the pores against water ingress while not changing the appearance of the substrate to any significant extent.

CONCRETE BLOCK SEALER has excellent weathering, UV and yellowing resistance.

CONCRETE BLOCK SEALER is easy to apply, has a good open time and exhibits excellent flow and leveling.

CONCRETE BLOCK SEALER complies with AS/NZS 4456.16:2003 “Determining Permeability to Water” (tested by Opus International Consultants Limited) when applied as part of the complete concrete block sealer system (including Aquellux S WB) in accordance with instructions contained in this data sheet. The CONCRETE BLOCK SEALER SYSTEM meets the requirements of CCANZ CP 01:2014 Code of Practice for Weathertight Concrete and Concrete Masonry Construction, section 4.4 Clear Coating System (approved applicator required).

An approved applicator must be a member of the Master Painters Association NZ (or approved painter by Dulux NZ or Resene NZ)

Architects and Specifiers: Please contact us for a Concrete Block Sealer Product Technical Statement (PTS). The PTS provides the necessary documentation to support building/product compliance applications to council.

Please refer to datasheet as this product is applied in 3 coats.

4, 10 & 20L pails

 Click here to download CONCRETE BLOCK SEALER technical datasheet

 Click here to download AQUELLUX S WB technical datasheet


This website provides brief product descriptions of our products. Information is included for illustrative purposes only. It is not a product application guide. Do not use or specify our products without following the printed application guidelines on the current technical data sheets, product labels, material safety data sheets and any other supporting literature. We reserve the right to alter formulations without notice. Properties as stated were determined under controlled laboratory conditions. We give no guarantee of results of product use since conditions of use are beyond our control. Buyers and users are urged to make their own assessment of our products under their own conditions and for their own requirements. If you are a customer, then any contract with you is in accordance with our latest terms and conditions, which are available on request or can be downloaded from this website. Where goods are acquired for business purposes, the Consumer Guarantees Act 1993 does not apply. To the maximum extent permitted by law, we have no liability (whether statutory, in contract or negligence or otherwise) to buyers, users or specifiers of our products for any physical, direct or indirect damage, economic loss or any other loss or costs caused or contributed by us or any of our agents or employees in respect of any goods or services supplied. Also to the maximum extent permitted by law, all conditions and warranties expressed or implied by statute or common law, equity, trade custom or usage or otherwise howsoever are excluded. If, despite this, Stratmore Construction Solutions Limited is found to have any liability, then it is agreed that the liability is limited to the price of the relevant goods or services purchased.