Does Z-PC replace Z-5?
No. Z-5 is not an abrasive and can be used as often as you like. Z-PC contains diminishing abrasives that are not intended for frequent use on paint finishes. Z-PC also does not have any protective qualities, so you must use a Zaino product like ZFX enabled Z-2 PRO, Z-3, or Z-5 for durable and long lasting protection.