Weha 4" Thin Rigid Back Up Pad

The Weha Thin Rigid Back Up Pad is engineered for precision polishing in tight spaces where standard backers cannot reach. At only 3/16" thick, this ultra-thin rigid backer is ideal for getting into 90° corners, tight seams, bevels, and flat edge work with maximum control.

Built from durable phenolic resin — not brittle bakelite plastic — this backer pad is designed to withstand tough shop conditions without cracking or breaking if dropped. The rigid construction provides a perfectly flat polishing surface for seam cleanup, surface polishing, and bevel refinement.

The premium hook & loop face is securely bonded for both wet and dry applications, resisting heat buildup and separation. A reinforced 5/8-11 brass thread insert ensures long-lasting durability without the thread damage common in lower-grade aluminum backers.

Specifications

• Ultra-thin 3/16" profile
• Rigid phenolic resin construction
• 5/8-11 brass thread insert
• Wet or dry use
• Available in multiple sizes

Key Benefits

• Reaches tight 90° corners and inside edges
• Provides perfectly flat, stable polishing support
• More durable than bakelite or plastic backers
• Resists heat-related hook & loop failure
• Built for professional fabrication environments