# sideFriction

> Whether friction should be used on the platform sides or not.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.0/script-reference/unityengine.md)
* **Assembly:** UnityEngine.Physics2DModule

> **Warning:**
>
> **Removed.** PlatformEffector2D.sideFriction has been deprecated. Use PlatformEffector2D.useSideFriction instead
>
> **Upgrade to** [PlatformEffector2D.useSideFriction](/engine/6000.0/script-reference/unityengine/platformeffector2d/usesidefriction.md)

```csharp
public bool sideFriction { get; set; }
```

### Remarks

This is useful to stop friction slowing a [Collider2D](/engine/6000.0/script-reference/unityengine/collider2d.md) when in contact with a vertical surface when a force is being applied to keep the [Collider2D](/engine/6000.0/script-reference/unityengine/collider2d.md) in contact with the surface.  The "sides" are defined as the edges perpendicular to the "top" surface(s) in local-space.