> The sleeve hardens to form a continuous plastic liner along the old pipe’s inner walls. I didn’t finish reading the article, but this sounds amazing. Isn’t p

> The sleeve hardens to form a continuous plastic liner along the old pipe’s inner walls. I didn’t finish reading the article, but this sounds amazing. Isn’t plastic one of the least reactive materials we know about and an excellent choice for this? It seems like maybe the issue is in the curing process.