Artificial Turf Infill in DFW: Silica, Zeolite, or Cooling Infill?

Ask three DFW installers what goes into your turf and you will usually hear “infill” and nothing more. That one word covers very different materials. Some keep a dog run from smelling, some keep a putting green rolling true, and some keep a south facing backyard usable in August.

Infill is a small line on a quote, but it decides how your yard feels, smells and wears for years. Here is what each type does, where it fits in North Texas, and what to ask before you sign.

Infill is the granular material brushed down into the turf fibers after install. It does not sit under the turf as its own layer. It lives inside the pile, settling toward the backing, and it does four jobs at once.

• It holds the blades up. Infill supports each fiber from below so the lawn stands tall instead of laying over under foot traffic.
• It weighs the turf down. The added weight keeps the turf flat and tight against the base so it does not ripple or shift in the heat.
• It protects the backing. Granules shade the backing from UV, which is a big part of why a well filled lawn outlasts a thin one.
• It gives the surface its feel. The amount and type of infill decide whether turf feels firm, cushioned, cool or fast.

When infill washes out or packs down, the fibers lose their support and the lawn starts to look tired. That is the root cause behind most flat lawns, which we covered in why artificial turf goes flat.

Silica sand is the most common infill because it is cheap, heavy and easy to spread. On a putting green it is the right call. Sand carried inside the fiber is what sets green speed and keeps a ball rolling true, which is why our putting green installs use it.

On a lawn, plain sand has two weaknesses in Texas. It holds heat, so a sunny yard gets hot fast. And it does nothing about odor. If a dog uses the yard, sand gives urine nowhere to go but down into the base.

Zeolite is a natural volcanic mineral with a porous, honeycomb structure. Those pores trap ammonia, the compound behind that sharp urine smell, and hold it until the next rinse flushes it out. Zeolite also holds a little moisture, which gives it a mild cooling effect.

For any yard with dogs, we install an antimicrobial and zeolite blend at 2 pounds per square foot. The antimicrobial coating slows bacteria growth, and the zeolite handles ammonia. Paired with a stone grade gravel base that drains freely, this is what keeps a pet lawn from smelling. Our post on whether pet turf smells goes deeper on why.

Cooling infills such as T°Cool are designed to absorb water and release it slowly through evaporation, which pulls heat out of the surface. After a rinse or a rain, a cooling infill lawn feels noticeably more comfortable underfoot than one filled with plain sand.

Cooling infill makes the most sense around pools, on west and south facing yards with no shade, and anywhere kids play barefoot. It works best with some moisture, so a quick rinse on the hottest afternoons gets the most out of it. Cooling infill does lose effect as it ages and wears, so a lawn that used to feel cool and no longer does may simply need a top off.

Many DFW yards have a dog and a heat problem at the same time. In that case we blend. Our standard cooling mix is one third zeolite and two thirds T°Cool by weight. On pet heavy zones we lean the other way toward more zeolite. The point is that infill can be matched zone by zone, so a pool deck and a dog run in the same yard do not have to share one compromise.

• Dogs use the lawn: an antimicrobial and zeolite blend at 2 lb per SF.
• Pool deck or full sun, no pets: cooling infill, or a zeolite and T°Cool blend.
• Dogs and heat: a zeolite and T°Cool blend, weighted toward zeolite in the dog zones.
• Backyard putting green: silica sand carried in the fiber to set green speed.
• Shaded front yard, light use: standard infill is usually fine.

1. What infill are you using, by brand and type?
2. How many pounds per square foot are you putting down?
3. Is it treated with an antimicrobial?
4. If I have a dog, how does your infill handle odor?
5. What base is under it? Infill cannot fix a road base or DG base that holds urine.

If the answer to the first question is just “infill,” you are not comparing bids on equal terms.

Infill does not last forever. Rain, rinsing and foot traffic wash some out over time, especially along edges and in low spots. Signs it is time to add more: fibers laying flat, the backing showing when you part the blades, odor returning faster after rinses, or a cooling lawn that no longer feels cool. A professional cleaning with power brooming and reinfill puts it back. See our turf cleaning services or a maintenance plan that handles it on a schedule.

Every Elite Texas Turf quote names the exact infill, the rate per square foot and the base underneath, zone by zone. If you have dogs, a hot yard, or both, we will match the infill to how you actually use the space. Request a free quote and we will walk your yard with you.