How is haze removed from new Vancouver pavers?

Haze on new pavers is almost always one of two things: efflorescence (natural mineral leaching from the cement) or polymeric sand haze from improper activation — and each requires a completely different removal approach.

Getting the diagnosis right before you start scrubbing is the most important step, because the wrong treatment can make the problem worse or permanently damage the paver surface.

Efflorescence (White Powdery Haze)

Efflorescence is the white, chalky, powdery residue that appears on new concrete pavers — sometimes within weeks of installation. It happens because calcium hydroxide from the cement binder migrates to the surface with moisture and reacts with carbon dioxide in the air to form calcium carbonate. In Metro Vancouver's wet climate, where pavers are exposed to persistent rainfall and high humidity from the moment they're laid, efflorescence is extremely common and can be quite pronounced in the first season.

The good news: efflorescence is temporary. In most cases, normal weathering — rain, UV exposure, foot traffic — will gradually break it down and wash it away within 6 to 12 months without any intervention. If you can be patient, doing nothing is a legitimate strategy.

If you want to accelerate removal, use a commercial efflorescence cleaner — these are dilute acid-based products (typically phosphoric or muriatic acid formulations) specifically designed for concrete pavers. Techniseal, PROSOCO, and SRW Products all make effective options available at hardscape supply houses in Metro Vancouver. Follow the dilution instructions precisely, wet the paver surface with clean water first, apply the cleaner, scrub with a stiff nylon brush, and rinse thoroughly. Never use muriatic acid at full strength — it will etch the paver surface and permanently alter the colour.

Do not seal pavers while efflorescence is still active. This is critical. Sealing over active efflorescence traps the calcium carbonate beneath the sealer film, creating a permanent white haze that is extremely difficult to fix without stripping the sealer entirely. Wait until efflorescence has stopped — typically 6 to 12 months after installation — before applying any sealer.

Polymeric Sand Haze

This is a different problem entirely, and unfortunately more difficult to fix. Polymeric sand haze occurs when the fine polymer particles from the joint sand are spread across the paver surface during installation and then activated with water before they're fully swept off. The polymer binders cure onto the paver surface, leaving a dull, blotchy film that does not wash off with water.

In Metro Vancouver, this happens most often when installers apply polymeric sand during or just before a rain event — the rain activates the sand before the surface is properly swept clean. It also happens when too much water is used during activation, causing the sand to overflow the joints and spread polymer residue across the surface.

Removal requires a polymeric sand haze remover — a specialised solvent-based cleaner designed to break down cured polymer binders. Techniseal makes a product called Poly Haze Remover that is widely used in the industry. Apply it to the affected areas, allow it to dwell for the specified time, scrub with a stiff brush, and rinse. Multiple applications may be needed for severe hazing. This product is available through hardscape supply companies in Metro Vancouver.

For light hazing caught early (before the polymer fully cures), aggressive scrubbing with a stiff brush and hot water sometimes works. Once the polymer is fully cured — typically 24 hours after activation — you need the chemical remover.

What Not to Do

Never use chlorine bleach on pavers — it damages polymeric sand in the joints, discolours coloured pavers, and kills surrounding vegetation. Avoid pressure washing at over 2,500 PSI, which can scuff the paver surface. And don't apply sealer over either type of haze hoping to hide it — you'll lock the problem in permanently.

If the hazing is severe and covers a large area, this is worth having a professional hardscape cleaner assess — particularly if the installation is still under warranty. Vancouver Interlock can connect you with experienced local contractors who handle paver restoration and cleaning if you need a professional opinion on your specific situation.