The use of polyethylene foam board friends, rigid polyethylene foam board function and usage estimates are very clear and rigid polyethylene foam board is also known, it has a good seam function and its effect is sealing seams better than others. Experts authorized by the Chinese Ministry of transport test showed that the rigid polyethylene performance of the foam board and wood, rubber, asphalt, etc., in fact has a more optimistic effect.

https://uberant.com/article/617016-polyethylene-foam-sheets-according-to-different-circumstances/