There are some performance aspects that have to be evaluated, but we have good results so far. For sure, we also have to evaluate the long-term performance. We haven't done everything in terms of research, but definitely we obtained very good success with lignin in polyurethane foam.
It's not only the NRC that is working on that: a lot of universities are also developing polyurethane foam for insulation. What we do at NRC these days is really to develop polyurethane foam for the cushioning materials that they use in car seats, furniture, and so on. The volume is huge. It's very important. Again, it's a question of finding a way to use a little lignin in a lot of volume.