Nu-Sleeve AG-155 has excellent electrical, chemical and oil resistance properties, excellent heat stability and flexibility for ease of push-up and recovery. It exhibits excellent resistance to oils, acids and alkalis and solvents. Resistance to fungus and corona is good. Nu-Sleeve AG-155 is available in NEMA Grades A, B, C-1, C-2 and C-3. - Nu-Sleeve AG-155 is a coated fiberglass sleeving made by applying a proprietary blend of acrylic polymers to a closely woven electrical grade fiberglass substrate. For Grade C-3, dielectric value is dependent on static conditions with no specific voltage value guaranteed.