TY - RPRT TI - Cleaning of aged EPDM rubber roofing membrane material for patching: laboratory investigations and recommendations AU - Rossiter, Walter J Jr AU - Nguyen, Tinh AU - Byrd, W Eric AU - Seiler, James F Jr AU - Lechner, James A PY - 1991 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 4544 DO - 10.6028/NIST.IR.4544 ER -