... * (T) 15, ( W) 55* (T) 15, ( W) 65* (T) 15, ( W) 65* (T) 20, ( W) 74* (T) 15, ( W) 80* (T) 15, ( W) 90* (T) 15, ( W ... and 55 oC for 2 hours,no deformation 12inoxidability (2h)10%NaOH solution/No significant deformation 1310%HCL solution/No significant ... 15tensile-strength(portrait direction)Mpa/13.4 8.Factory showing high quality polystyrene wood panel use for making backyard fence ,waterproof wood ...