That is what I did to mine. I put a coat on, let it dry, and then put some heat to it. Then I applied a second coat and did the same. I used a harbor freight heat gun to warm it up. What I learned is that the more you heat the wood the darker the color would get. Just be careful not to scorch it. If you don't smell the iron nitrate then the wood isn't hot enough. I did my entire rifle and when I was done it looked ok but still had a green tint to it. So I played around with the heat on a practice piece to find how much heat I could apply. Then went back over the gun. This time I got the smell and the color to come out.