# frictionCombine

> Determines how the effective friction is calculated when two Collider2D come into contact.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.7/script-reference/unityengine.md)
* **Assembly:** UnityEngine.Physics2DModule

```csharp
public PhysicsMaterialCombine2D frictionCombine { get; set; }
```

### Remarks

Default to [PhysicsMaterialCombine2D.Mean](/engine/6000.7/script-reference/unityengine/physicsmaterialcombine2d/mean.md) which allows either [Collider2D](/engine/6000.7/script-reference/unityengine/collider2d.md) to reduce friction to zero. For example, anything slides on ice.

Additional Resources: [PhysicsMaterialCombine2D](/engine/6000.7/script-reference/unityengine/physicsmaterialcombine2d.md)