Supergrit Abrasives

5" SOLID 5/16"-24 THREAD MIRKA (105MS) SOFT BACK UP PAD PSA

5" SOLID 5/16"-24 THREAD MIRKA (105MS) SOFT BACK UP PAD PSA - Main image
$11.25 $15 In stock

The Mirka (105MS) Soft Back Up Pad is a 5-inch solid backup pad with a 5/16"-24 thread and PSA (pressure-sensitive adhesive) facing. It is designed to support PSA-backed abrasive discs during sanding and finishing tasks.

  • 5-inch solid backup pad
  • 5/16"-24 thread mount
  • PSA (pressure-sensitive adhesive) face for PSA-backed abrasives
  • Soft backing construction
  • Available as a Single or Pack of 2
Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.8 / 5 · 5 reviews)

Aurora V. ★★★★★

The PSA facing holds the 5/16"-24 thread pad firmly against my sander, and the soft backing gives just enough give on curved panels. Swapped out my old rigid pad for this one and the difference in finish quality is immediately noticeable.

Aurora ★★★★★

The PSA facing holds the discs firmly without any wobble during sanding, and the soft pad contours nicely to curves. It threads on perfectly with that 5/16"-24 fitting, so I've been using it straight out of the box.

Henry ★★★★★

Swapped out the old rigid disc for this 5/16"-24 threaded pad and the PSA surface grabs the paper nice and flat. Sanding feels way more controlled on curves, no more chattering. Solid build for the price.