Checking materials that were assigned at runtime

I'm attempting to check the material of a prefab. As the prefab is generated, it is randomly assigned a material from a list of available materials. For the purposes of testing, the list is set to only 1 material.

I've tried multiple ways to compare the material of the prefab, but no matter what I do, the condition never seems to be true. I highlighted the condition in question.

function OnCollisionEnter (col:Collision)
{

 GetComponent.<AudioSource>().PlayOneShot(paddleHitSound,0.5);  

 if (col.gameObject.tag=="powerUp") //check powerups  

 {  

     Debug.Log("Confirmed contact with powerup");  

     var powerController:powerUpScript;  //set up script controller for powerup  

     powerController = col.gameObject.GetComponent(powerUpScript);  

     **if (powerController.rend.material == powerController.power1)//compare material of powerupball to list of available powers**  

     {  

     Debug.Log("Confirmed contact with power1");  

     //Do stuff  

     }  

     else
     {  

     Debug.Log("This should not happen");  

     //do something else  

     }    

//more stuff

 }//End of Check PowerUp

}