Do You Need Infill for Artificial Grass to Perform Well?

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Artificial grass can perform well without infill, but it's not always the case. In fact, some artificial grass products are specifically designed to work without infill.

Infill helps to stabilize the grass blades and prevent them from becoming misshapen or damaged. Without infill, the grass can become uneven and may not look as natural.

Infill also helps to improve the drainage of the artificial grass, allowing water to pass through more easily. This can be especially important for areas with high foot traffic.

Infill is typically made from materials like silica sand, rubber, or a combination of both. The type and amount of infill used can affect the overall performance of the artificial grass.

What You Need to Know

Infill is not always necessary for artificial grass, but it can be beneficial for certain types of installations.

Artificial grass without infill is often used for small, low-traffic areas like balconies or rooftops, where the grass will not be subjected to heavy use.

Credit: youtube.com, Synthetic Grass Infill Explained

Infill helps to maintain the shape and structure of the artificial grass fibers, preventing them from matting down over time.

It also provides a more natural playing experience for sports fields, by allowing the grass to be more responsive to foot traffic.

Infill can be made from a variety of materials, including sand, rubber, and silica sand.

The type and amount of infill used will depend on the specific needs of the installation, such as the amount of foot traffic it will receive.

Infill can be added to artificial grass during the installation process or at a later time, making it a flexible option for homeowners and businesses alike.

However, some artificial grass products are designed to be infill-free, eliminating the need for additional materials.

These products often have a more dense and tightly woven backing, which helps to maintain the shape and structure of the grass fibers.

Common Problems

Surface damage and bald spots are a common problem with artificial grass that lacks infill. A lack of infill means there is no cushion or support for the fibers, increasing friction and wear.

Credit: youtube.com, Artificial Turf Infill Options

Over time, this can cause the fibers to break down and create unsightly bald spots. These bare patches create an uneven playing surface.

The uneven surface causes unpredictable ball behavior, affecting the quality of play. This can lead to players colliding or making awkward movements to adjust to the ball's unexpected path.

The lack of infill also means the fibers have no support, leading to increased wear and tear. This results in a shorter lifespan for the artificial grass.

Types of Infill

Artificial grass infill comes in many forms, each with its own strengths and weaknesses. You can choose from coated sand, organic materials, crumb rubber, raw silica sand, and virgin polymer.

Coated sand is a popular option, made from a mix of natural and synthetic materials. It's durable, consistent, and antimicrobial, making it a great choice for families with kids.

Some common types of infill include crumb rubber, which is made from shredded tire scraps, and silica-coated sand, which is often dyed to resemble natural soil. Crumb rubber is ideal for sports fields and playgrounds, while silica-coated sand is a good option for pet areas.

Here are some of the most common types of infill:

Silica Sand

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Silica sand is the most common turf infill material and the most affordable of all the artificial grass infills. It provides stability to the turf, keeps it upright, and supports proper drainage. However, it does not have any cushioning properties, so additional infill may be needed for a softer feel.

You can buy kiln-dried silica sand for artificial grass at most local hardware stores, such as Home Hardware and Lowes. Kiln-dried silica sand is the most ideal for optimal performance and to prevent headaches down the road.

The term kiln-dried silica sand refers to the process of being subjected to extremely high temperatures to burn off moisture and organics. It's a very fine sand which makes it easy to install properly and resistant to weed growth.

There are different sizes of silica sand, including #20 Clean Silica Sand and #30 Silica Sand. The #30 Silica Sand has slightly smaller granules, and it's mainly recommended for sand-filled putting greens.

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Here are some key characteristics of silica sand:

Silica sand is great for front and back yards that are not used by pets. However, if you have a dog, you may want to consider using an anti-microbial infill, such as Wonderfill or Zeofill.

Artificial vs No Infill

Some turf manufacturers claim their products don't require infill, but this is likely a ploy to cut costs.

This is probably an attempt to gain business by quoting a low cost while sacrificing performance, quality and longevity.

Products marketed as non-infill artificial turf are manufactured with a thicker thatch under layer.

They still require infill to perform properly, despite the manufacturer's claims.

Benefits of Infill

The backing of most artificial grass is black or dark green and will retain a lot of heat in the summer.

Adding a light colored artificial grass infill sand creates a heat reflecting layer that keeps the turf cool by repelling heat.

Credit: youtube.com, Artificial Grass Infill - Common Options

Properly applied artificial grass infill will sit along the base of the backing to provide a protective barrier against damage from wear and tear.

Infill helps prevent damage from everyday wear like foot traffic, rain, and snow, as well as from increased wear like a dog that likes to dig or the posts of a child's play area.

Quality artificial turf has holes punched in the backing to allow for drainage, and an adequate infill layer will regulate the rate at which water, pet urine, and rain drain through.

Keeps Cool

Artificial grass infill acts as a temperature regulator and keeps grass cooler than if you don't use infill. This is especially important for pets that like to enjoy the grass during the day.

The backing of most artificial grass is black or dark green, which will retain a lot of heat in the summer. This can make the turf uncomfortable to walk on in bare feet.

Adding a light colored artificial grass infill sand creates a heat reflecting layer that keeps the turf cool by repelling heat. This simple solution can make a big difference in the comfort and enjoyment of your artificial grass.

Improves Drainage

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Artificial turf infill doesn't just improve the appearance and durability of your lawn, it also plays a crucial role in drainage. The backing of all quality artificial turf is punched with holes to allow for drainage, but an adequate infill layer takes it to the next level.

Water, pet urine, and rain can drain through the turf at a more regulated rate with infill. This is especially important for pet owners, as it helps prevent puddles and odors.

Choosing the Right Infill

Choosing the right infill for your artificial grass is crucial for its longevity and performance. ProGreen, with over 30 years of experience, recommends using infill regardless of the manufacturer's claims. Infill provides support, cushioning, and longevity to your artificial grass.

To choose the right infill, consider the climate and purpose of your turf. Crumb rubber holds up better in extreme weather conditions, while Zeolite provides superior drainage for areas with heavy precipitation.

Here are some common applications for different infills:

Choosing What to Use

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ProGreen has over 30 years of experience in manufacturing artificial grass, and they strongly recommend using infill regardless of the type of turf. With so many options available, it can be overwhelming to decide which one to use.

Infill is an essential component of the artificial grass system, providing support, cushioning, and longevity. Without it, the lifespan of your turf could be significantly compromised.

To determine the right infill for your artificial grass, consider the climate you're located in and the purpose of the turf. Crumb rubber holds up better under extreme weather conditions because it absorbs less water than other turf infills.

Zeolite provides superior drainage, which is better for areas with a lot of precipitation. If you have a lot of pets that use the turf extensively, Zeolite may be your best bet.

Research each infill thoroughly online before deciding which type to use for your turf. Some common applications include:

  • Crumb rubber for extreme weather conditions
  • Zeolite for areas with a lot of precipitation
  • Kiln-dried silica sand for general use

Calculate the square footage of the area to be infilled by multiplying the length by the width. For example, a lawn that's 60 feet long by 20 feet wide requires 1,200 pounds of infill sand. This number should be slightly higher if you're installing a turf with a blade longer than 35mm or a thicker density grass.

When to Install

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You should install infill right after the new synthetic surface has been installed and is fully inflated.

This allows you to avoid applying infill unevenly on both sides of every seam.

Installation and Maintenance

Installing artificial grass infill is a crucial step to achieve a perfect surfacing result. The infill installation process involves several steps, including removing the old surface, adding a layer of soil and stones for drainage, and installing the synthetic turf.

To install the infill, you'll need to add it with a spreader, which will provide an even coat that helps with drainage, cushioning, and wear and tear. If you don't have a spreader, you can spread it by hand as evenly as possible.

You'll need to repeat the process of adding and spreading the infill until it's fully installed, and then wet down the area to get rid of dust and allow the infill to settle.

Fiber Flattening

Without artificial turf infill, the fibers of the artificial turf become matted and flattened.

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Credit: pexels.com, An artist’s illustration of artificial intelligence (AI). This image depicts how AI tools can reproduce and disguise biases and the importance of research to mitigate this. It was created ...

This not only looks unattractive but also makes the surface less functional for activities. The turf loses its lush, natural appearance and can start to look worn out and old much sooner than expected.

Fiber flattening can be caused by everyday wear like foot traffic, rain, and snow. Infill helps to prevent this by keeping the fibers standing up straighter.

Artificial grass infill applied properly will also sit along the base of the backing to provide a protective barrier against damage.

How to Install for a Perfect Surface

To get a perfect surface, it's essential to follow the right steps. The first step is to take out the old surface, like sod, asphalt, or concrete. This will give you a clean slate for your new artificial grass installation.

You'll need to put down a layer of soil and add stones to secure drainage. This will help prevent water from pooling and ensure your surface stays stable. The stones will also help to filter out debris and prevent it from getting stuck in the soil.

Artificial Bait in Close Up
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Now it's time to install the synthetic turf. This is a crucial step, as it will determine the overall look and feel of your surface. Make sure to follow the manufacturer's instructions for installation.

To add the infill, you'll need a spreader or a stiff-bristled broom. If you don't have a spreader, you can spread the infill by hand as evenly as possible. This will help with drainage, cushioning, and wear and tear on your new surface.

Here's a summary of the steps to follow:

  1. Take out the old surface
  2. Put down a layer of soil and add stones
  3. Install the synthetic turf
  4. Add the infill with a spreader or stiff-bristled broom
  5. Repeat steps 3 and 4 until the infill is fully installed

Remember to wet down the area after installation to get rid of dust and allow the infill to settle. This will help ensure a smooth and even surface.

Installing Sand

Installing sand infill is a crucial step in artificial grass installation. It takes 1-2 hours for an average-sized lawn, depending on the spreader used.

The ideal time to install infill is when the turf is completely dry, as moisture can make the sand clump together and make the process more difficult. If it starts to rain, stop and restart when the turf is dry again.

Red and yellow shisha bowls arranged on a white marked artificial grass field.
Credit: pexels.com, Red and yellow shisha bowls arranged on a white marked artificial grass field.

A grass seed spreader or drop spreader is the best way to spread infill over a large area. Fill the spreader with sand and work it in a pattern that spreads the sand evenly.

A crisscross pattern is ideal, but may not be practical for all areas. The more evenly the sand is distributed, the easier it is to broom into the turf and the better the final product.

Silica sand is the most common and affordable infill option, consisting of tiny granules of quartz that provide stability and support proper drainage. However, it does not have any cushioning properties, so additional infill may be needed for a softer feel.

#20 Clean Silica Sand is normally used on landscape artificial turf lawns, while #30 Silica Sand has slightly smaller granules and is recommended for sand-filled putting greens.

Kiln-dried silica sand is the most ideal for optimal performance and to prevent headaches down the road. It's a very fine sand that makes it easy to install properly and resistant to weed growth.

Specific Applications

Credit: youtube.com, How to Install Sand Infill for Artificial Grass

For families with children, playgrounds, or athletic fields, especially in areas with humidity or average rainfall, Greenplay's corkonut infill is a great option. It recreates the evaporative cycle of a natural lawn, keeping the turf within 30 degrees of natural grass even on the hottest days.

If you're looking for a professional-quality athletic field, Envirofill is a great fit. It's designed to withstand intense usage and extreme weather conditions, maintaining consistent field quality and reducing maintenance needs.

For areas with high temperatures, Greenplay's corkonut infill is particularly effective due to its low bulk density, which prevents it from getting as hot as other infill options. This keeps the turf cooler and more comfortable for players.

In areas with low rainfall, Safeshell or Safeshell SmoothPlay are effective natural infill alternatives with evaporative cooling. They help keep the surface temperature of the turf lower than the average crumb rubber field.

For institutions prioritizing cleanliness and safety, Envirofill's antimicrobial-infused coating is a major advantage. It offers consistent shock absorption, reducing the risk of injuries and inhibiting the growth of bacteria, mold, and mildew.

Check this out: Natural Artificial Grass

Key Information

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Artificial grass infill is a crucial part of any artificial turf installation.

Infill is considered filler material and is used in the final step of an artificial grass installation, with Round Silica Sand being the standard infill for artificial turf.

You'll need infill to help weigh the artificial turf down, cause the synthetic grass blades to stand up straight, and create a more realistic look.

Proper infill installation is critical to maintaining your artificial grass system, and it's recommended to use 1-3 lbs. per sq. ft., depending on your application type.

Landscape applications typically use 1-3 lbs. per sq. ft. of silica sand infill, which is a budget-friendly option for general front or backyard installations without pets and children.

Infill should be spread evenly throughout the artificial grass and then brushed or broomed into the turf fiber blades, with a power broom recommended to brush up turf fibers and let the infill work down in between the turf blades.

You'll need to replenish the infill every 5 to 7 years, or when the artificial grass blades start to look droopy and limp.

Frequently Asked Questions

Can I just lay artificial grass on soil?

No, laying artificial grass directly on soil is not recommended. A base is required to ensure proper drainage, prevent damage, and keep the turf flat and even.

Seth Meier

Senior Writer

Seth Meier is an experienced writer who has a passion for technology and innovation. He has worked in the tech industry for over a decade and has developed a deep understanding of emerging trends and disruptive technologies. As a blogger, Seth focuses on providing valuable insights and analysis on various topics related to technology, entrepreneurship, and digital marketing.

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