When polyurethane foam burns, it releases potentially deadly hydrogen-cyanide gas. Perhaps those plastic-wrapped plastic cushions sit on a frame of solid wood, or perhaps the frame is made from an ...

Plastic is made from petroleum ... It takes some time to heat up, charring first. It eventually ignites and becomes a steady fire, releasing its heat at a slow, consistent rate over, say, 20 ...

Plastic is made from petroleum ... It takes some time to heat up, charring first. It eventually ignites and becomes a steady fire, releasing its heat at a slow, consistent rate over, say, 20 ...