PhysicalMaterial is not changing through my code. [solved]

  void Start()
     { 
         NoSlip = new PhysicMaterial
         {
             //name = "walll",
             staticFriction = 1f,
             dynamicFriction = 1f,
             frictionCombine = PhysicMaterialCombine.Maximum
         };
         Slip = new PhysicMaterial
         {
             staticFriction = 0f,
             dynamicFriction = 0f,
             frictionCombine = PhysicMaterialCombine.Minimum
         };}
  private void OnCollisionstay(Collision collision)
     {
         CapsuleCol.material = NoSlip;
     }
     private void OnCollisionExit(Collision collision)
     {
         CapsuleCol.material = Slip;
     }                                                                                                       public void TriggerJump()//this worked for changing the Ph.material
 {
     CapsuleCol.material = NoSlip;
     float counter = 0
         counter += 1f
     if(counter == 2)
     {
         CapsuleCol.material = Slip;
     }
 }

When Iam entering playmode I see that my charactercollider got a physical material attached to it but that material is not changing anymore with this code. The physical material only changed when I used a if statement in the same void function see code. What I also find out was if I changed the order of declaration in start that it would do the opposite, so the default NoSlip would change to Slip in playmode after that it wouldn't change. Things I have already tried: 1.deleting my own made p.material 2. putting code in fixedupdate 3. using other variable to hold the p.material (newslip = NoSlip;) 4. Deleting or adding p.materials to objects in scene. 5. Checking with Debug.log if OnCollisionStay works. I hope that I have given enough information, thanks in advance.