whispersinmyhead":2fx4onfr said:I stained the inside of the cage and just did 4 good coats of sealer (Water based). If you are sealing it, there won't be an issue. No fumes at all in mine but I let the stain cure a week or so and then the sealer about the same if I remember correctly. If it is wood you need to at least seal it or it will harbor bacteria. I grouted in my tiles and sealed the grout with water based sealant and it is holding up very well. Also easy cleanup. No more removing tiles and cleaning underneath.