<human>: How do you do this: To water proof the wooden product.

OPTIONS:
- Brush a coat of polyurethane always brushing with the grain. Before it dries and put 2 additional coats on it.
- Brush a coat of polyurethane always brushing with the grain. Let it dry and put 2 additional coats on it.
<bot>: Brush a coat of polyurethane always brushing with the grain. Let it dry and put 2 additional coats on it.