Mirka
Mirka 1125 Backup Pad 1.25 inch PSA
A 1.25 inch PSA backup pad for securing abrasive discs during sanding operations
- 25 inch diameter fits compact sanding tools
- PSA backing allows quick disc changes
- Mirka brand delivers professional-grade reliability
- Backup pad design supports consistent surface contact
- New condition ensures full performance from first use
Backup Pad 1.25" PSA
The Mirka 1125 Backup Pad is a 1.25 inch PSA attachment designed for orbital sanders. It provides a firm mounting surface for pressure-sensitive adhesive discs. The pad suits detail sanding on automotive panels and tight contours. It is built for professional workshop use.
Replacing worn backing pads
A fresh pad restores even pressure across the disc when the original face has glazed or lost grip. The jump is worth it when discs start curling at the edges or vibration increases during operation. Swapping the pad eliminates uneven wear patterns on fresh abrasives. It also prevents the sander from marking the workpiece.
Quick PSA changeover
The pressure-sensitive adhesive backing allows discs to be pressed on and peeled off without tools. Alignment is straightforward because the pad diameter matches standard 1.25 inch discs. The most common issue is residue buildup on the pad face if old adhesive is not cleaned before applying a new disc. A clean surface ensures full contact and prevents premature disc release.
Highlights
- 25 inch diameter fits compact sanding tools
- PSA backing allows quick disc changes
- Mirka brand delivers professional-grade reliability
- Backup pad design supports consistent surface contact
- New condition ensures full performance from first use
Specifications
| Brand | MIRKA |
|---|
Questions about this item
What diameter backup pad does the 1125 model accept?
The Mirka 1125 Backup Pad measures 1.25 inches in diameter and uses a PSA adhesive face for disc attachment.
How do you attach a fresh abrasive disc to the PSA surface?
Peel the protective liner from the pad face, centre the disc on the sticky surface, and press firmly across the whole area to prevent edge lift during use.
When should the 1.25 inch pad be replaced?
Replace the pad when the PSA layer no longer holds discs securely, the foam backing compresses unevenly, or the mounting threads show wear.
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