Sealing reclaimed barnwood – lead paint

Asked by Rohan H from Chicago

Hi Barn Geek,

I have a piece of barnwood that i want to use to make a mantel. One side has the nice weathered gray patina. The other side is a mix of gray and slight reddish color.

I am assuming the red color is old lead-based paint.

Two questions:

1. What’s the best method to finish reclaimed wood, or should I keep it natural?
2. Will an oil or poly seal in the lead-based paint?

Thanks
Rohan