Have questions or want to speak to a representative? Call 1-833-993-7325 (SEAL)

Polymeric Sand

Seal King Prolock+ is a next-generation polymeric sand engineered for strength, flexibility, and no-haze results. Perfect for paver and stone joints from 1/16” to 4” wide, its high polymer content and unique formulation create a strong, flexible bond that resists rain, wind, and freeze-thaw cycles. Applied dry into the joints, it activates with a simple one-step watering process and hardens within hours. With exceptional resistance to erosion, freeze-thaw cycles, and weed or ant growth, Prolock+ delivers a clean, lasting finish for any hardscape project. Professional-grade polymeric sand for high-traffic, demanding installations. Compatible with concrete pavers, porcelain, and natural stone. Excellent for driveways, patios, pool decks, walkways, and parking lots.

How To Apply Application Instructions Special Features Available Finishes Available Sizes Coverage Technical Data Safety Data Before & After Gallery

How to power wash before applying Polymeric Sand
Surface preparation and cleaning using a power washer. Preparing your interlocking paving stone surface for sealing. This video showcases the importance of power washing the surface in order to remove dirt and grime from your paving stone, and most importantly, removing the dried up Polymeric sand from between the joints.

Applying and activating Seal King’s Polymeric Sand
Once the surface is power washed, and dried for at least 24 hours, this video shows how to apply and activate Seal King’s Polymeric sand.

One-step watering with fast-setting gel technology
Engineered for joints up to 4″ wide
Installs at temperatures as low as 0°C (32°F)
Excellent performance on sloped or high-traffic surfaces
Diminishes weeds and repels insects
Weather resistant: freeze-thaw, rain, salt, and acid cleaner
Colourfast with no added pigments — won’t discolour over time
Low-dust formula – OSHA compliant for safer installation

1 skid (63 bag minimum order quantity)

Depending on the width and the depth of your paving joints, a 50 lbs (22.68kg) bag of Seal King Prolock+ will cover from 2 to 10M Square (20 to 100 sq. ft.)