Silica sand provides excellent blade support and has a slower absorption rate.

Another natural infill material is silica sand. This one is made from quartz eroded by wind and water. 

Silica sand provides excellent blade support and has a slower absorption rate. This type of infill is great for lawns, putting greens, playgrounds, and recreational areas. 

The key benefits of silica sand infill are: 

• Natural materials – great for households with pets and children, playgrounds, and recreational areas. 
• Realistic Putting Green Stimp Speed – 60 grit silica sand is just thin enough to make for a great backyard putting green while being heavy enough to keep grass blades in place. 
• Popularity – industry-wide application, ability to mix with other infill materials. 
• Excellent blade appearance – helps blades stand upright and look natural. 

This type of turf infill also comes with a few downsides. It can increase the surface temperature of artificial turf. It is also heavier than most infill types and doesn’t prevent pet odors.