Techniseal HP Nextgel - High Performance Polymeric Sand 50 Lb Bag

Why Contractors Ask for HP NextGel by Name

Most polymeric sand failures trace back to three things: haze left on the paver, the sand washing out before it sets, and the joint breaking down under traffic. HP NextGel was engineered against all three.

• No haze, and that is the manufacturer’s claim, not ours. Techniseal calls NextGel the first true “no dust, no haze, no waste” jointing sand. Haze is the single most common callback on a polymeric sand job, and it is almost always the installer’s reputation that pays for it.
• It sets in minutes, not hours. HP NextGel starts to set a few minutes after water activation and becomes resistant to water erosion quickly, including rain, splashes, and sprinklers. That shrinks the window in which a surprise shower ruins a day of paver work.
• Rated for heavy vehicular. Techniseal lists pedestrian, light vehicular and heavy vehicular traffic. That covers driveways, commercial entries, and industrial installs, not just patios.
• Built for humidity and slope. A combination of high humidity and steep grade is where ordinary jointing sand washes out of the joint. Techniseal specifically rates HP NextGel for high humidity areas, pool decks, and heavy sloped surfaces.
• Handles the joints other sands cannot. Rated from 1/16 in all the way to 4 in, with intersecting spaces up to 2 in. Wide irregular joints and false joints are both in scope.
• Works on nearly every surface you lay. Concrete pavers, wet cast pavers, clay pavers, natural stone, slabs, highly textured surfaces, and porcelain tile.
• Flows down the joint. The mix is specially sorted so it runs into the joint instead of bridging, which is what makes a fast install fast.
• Resists weeds, insects, and erosion once cured, which is most of why anyone uses polymeric sand in the first place.

HP NextGel Specifications

Techniseal does not publish a single flat coverage number for HP NextGel, and that is the honest answer: polymeric sand coverage swings with paver type and joint width far more than it does with square footage. Use the Techniseal product calculator, or call us with your paver size and joint width and we will work the bag count out with you.

Where HP NextGel Works

HP NextGel is the one to reach for when the job has any complication to it.

• Driveways and any surface seeing regular vehicle weight
• Commercial entries, plazas, and industrial installs
• Pool decks and other constantly damp surfaces
• Steeply sloped patios, walkways, and driveways where sand tends to wash
• Porcelain tile and large format slab installs
• Natural stone and clay paver work
• False joint installations
• Concrete overlay projects
• Wide irregular joints up to 4 in
• Any job where a haze callback would cost you the client

How to Install HP NextGel

Follow the official Techniseal installation guide, linked below. This is the shape of the job:

1. Confirm the pavers are laid, the surface is clean, and the joints are dry and free of debris.
2. Pour the sand out and sweep it into the joints, working it fully to the bottom. HP is formulated to flow down rather than bridge.
3. Plate compact the surface so the sand settles, then refill the joints and compact again as needed.
4. Sweep and blow the surface completely clean. Every grain off the paver face before water touches it.
5. Water activate per the technical data sheet, working in manageable sections and starting at the low point.
6. Give it the initial set. HP begins setting within minutes and gains water erosion resistance quickly.
7. Keep traffic off through the cure period specified in the TDS.

The single biggest determinant of how the job looks in a year is how clean the surface was when the water hit it. That is true of every polymeric sand, and it is still true of a no-haze one.

HP NextGel or SmartSand?

Techniseal makes this call for you in their own literature:

• HP NextGel for vehicular traffic, high humidity, steep slopes, porcelain and large slab work, and joints out to 4 in. The high performance option.
• SmartSand for everyday paver installations not exposed to substantial vehicular circulation. Techniseal calls it the cost-effective alternative.
• If a car will drive on it, or if it is near a pool, HP is the answer. For a standard backyard patio, SmartSand will do the job for less.

Quick Answers

Does it really not haze?
That is Techniseal’s claim for the NextGel technology, and it is the headline feature of the product. It still depends on you sweeping the surface fully clean before water activation; no formula saves a dirty paver face.

Can I use it on a driveway?
Yes. Techniseal rates HP NextGel for heavy vehicular traffic.

Will it work on porcelain tile?
Yes, porcelain tile is on Techniseal’s approved surface list for this product, along with natural stone, clay and concrete pavers, and large slabs.

What is the widest joint it handles?
4 in, with intersecting spaces up to 2 in. Techniseal notes the ideal range is 1/16 in to 1 in.

Do I have to compact it?
Yes. HP NextGel is rated with mechanical compaction. If you cannot compact, look at Techniseal NOCO instead.

How soon is it rain safe?
It begins setting within minutes of activation and becomes water erosion resistant quickly. For the exact window, check the current technical data sheet.

How much do I need?
Coverage depends on paver type and joint width, so there is no single number. Use Techniseal’s calculator or call us with your paver and joint dimensions.

Official Techniseal Documentation

Documents are published by Techniseal. For the most current versions, visit techniseal.com.

Pairs Well With

• Techniseal HD Paver Prep to clean and prep the surface before you sand
• Techniseal NS or JS paver sealer once the joints have fully cured
• Techniseal NOCO if the install cannot be mechanically compacted
• Techniseal SmartSand for standard pedestrian-only patios

Questions about your project? Call or text (856) 418-4895 and you will get a real person who works with polymeric sand every day.