3M™ Repair Plates are an innovative behind-the-wall solution that allows DIYer to fix their walls like a professional. Works best with 3M™ Repair Compounds that will never shrink and crack.
The 3M™ Large Hole Repair Backer Plate is designed to use with 3M Wall Repair Fiber Reinforced Compound. This is an innovative large hole repair product that allows every DIYer to fix their walls like a professional. Using this new behind the wall system and fiber reinforced compound allows an easy fix for holes ranging from 3" to 5".