KarnaFlex vs Hydro-Stop on epdm
Compairson of Karnak's KarnaFlex seam sealer that is always used for seam sealing TPO EPDM PVC and excellent for repairs guess the famous HYDRO STOP Is WIND storm approved I might be wrong KARNAK might be up there now. OK ONE IS oIL BASED and the other is water based and I'll let you be the judge but just hope it didn't rain tonight this is a 2 part video. By NATIONAL ROOFING HOUSTON GALVESTON AREAS.