Now offered $6 after a month of ignoring my emails. Guess I'll take and chalk this up to experience with dealing with China.
Our return address is: 1F building3 Hao'er Jiarentai Industrial park, 164 Fengtang Rd, Yongfu Street, Bao'an DistrictShenzhenChina
Product not only damaged stove but did not foam or otherwise perform as expected. The ad was intentionally misleading on bottle size. Company based in China. Offers $3 refund for $25 product or you can get full refund if you ship back... estimated $35 shipping... you lose either way.