How can I change the alpha of a material in Blueprints?

Is it possible to change the alpha of a material over time in an actor blueprint? For example, I have a burning barrel blueprint that I have a normal wood texture for and I want it to start to slowly change into a burnt material that I have using the alpha of that material. I know how to do this using matinee, but I think I would have to set that up for each barrel and would love to know how to do that in blueprint so I only have to do it once.
Not sure if I’m missing something really simple here.

Thanks for the help.

What you need is Material Instance. There you can change parameters of the instanced material.

Thanks for the help. Yes I created a material instance in the construction script and used a timeline to change the material over time. It worked great. Thanks again.