... DESCRIPTIONAcrylic-F fiberglass sleeving is a Class 155°C electrical insulation,manufactured by impregnating and coating a finely braided fiberglasssleeving with ... .5, 4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 22, 24, 25, 27,30.STANDARD COLOR0.5mm ... to tan), black, red and yellow,green and blue. fiberglass insulation sleeves