Polarstar Sanding Disc 125mm
R 25.00
- Polyester film backing for flexible, smooth cutting
- Resists clogging on hard gel coats and clear coats
- Available in 600 and 1200 grit
- Velcro-backed for quick pad changes
- Polyester film backing cuts hard clears without clogging
- 600 and 1200 grit for staged, consistent finishing
- Velcro backing for fast disc swaps mid-job
- Free shippingOn orders over R1000
- Fast delivery2-4 business days
- Safe paymentEncrypted checkout
Guaranteed safe checkout
- Visa
- Mastercard
- Apple Pay
- Google Pay
- Capitec
- Stitch
Frequently bought together
Total price R 5,315.00
Hard Coatings, Handled
Built for surfaces that defeat ordinary abrasives
The Mirka Polarstar's polyester film backing flexes to follow panel contours while its special resin bonding keeps the abrasive surface clear, even on the hard tooling gel coats and scratch-resistant clears that clog standard paper-backed discs in minutes.
Why Polarstar
Performance where it counts
Engineered for professional sanding on demanding coatings and substrates.
-
Anti-Clog Formula
Special resin bonding prevents coating debris loading the disc, so cut rate stays consistent throughout the job.
-
Flexible Film Backing
Polyester film conforms to curved panels and compound contours without tearing or softening.
-
Fast Disc Changes
Velcro hook-and-loop attachment swaps in seconds on any 125mm DA or random orbital backing plate.
-
Two-Stage Grit Range
600 and 1200 grit cover the full process from initial defect removal to a compound-ready finish.
Polarstar vs. Standard Discs
How the Polarstar stacks up against a typical paper-backed abrasive
Not all sanding discs are built for hard automotive clear coats and gel coats. Here is how the Polarstar compares to a typical paper-backed sanding disc in the same grit range.
| Feature | DetailerSA | Alternative |
|---|---|---|
| Polyester film backing | Yes | No |
| Resists clogging on hard clear coats | Yes | No |
| Suitable for wet and dry sanding | Yes | Yes |
| Velcro hook-and-loop attachment | Yes | Yes |
| Rated for scratch-resistant OEM clears | Yes | No |
| Multi-industry application (automotive, marine, glass) | Yes | No |
Wide Application Range
One disc family across paint, gel coat, glass and composites
Whether you are cutting clear coat on a panel, sanding gel coat on a marine hull or removing glass scratches, the Polarstar's film backing and anti-clog formula maintain consistent scratch depth across all of them, so you are not switching disc systems mid-job.
Reviews
What our customers say
No reviews yet. Be the first to review this product.
Questions
Frequently asked
What grit options are available for the Mirka Polarstar 125mm disc?
The Polarstar 125mm is available in 600 and 1200 grit. Use 600 to address deeper sanding scratches, orange peel or heavy clear coat defects, then follow with 1200 to refine before compounding or polishing.
What type of backing does the Polarstar disc use?
The disc uses a Velcro (hook-and-loop) backing, making it compatible with standard 125mm random orbital and DA backing plates. Disc changes are quick and tool-free, which keeps the workflow moving.
Why is polyester film used as the backing material instead of paper?
Polyester film is dimensionally stable, flexible and non-absorbent. It conforms to contoured surfaces better than paper, maintains a consistent cut pattern and does not soften or tear when used with water or light lubricants.
Can the Polarstar be used wet or dry?
The polyester film backing and special resin bonding are suited to both wet and dry sanding applications. Wet sanding with the Polarstar extends disc life further and reduces heat build-up on sensitive clear coats.
What surfaces is the Polarstar compatible with?
The Polarstar is designed for automotive lacquers (new and aged), scratch-resistant clear coats, hard tooling gel coats, plastics, primers, fillers, composites, metal and glass. It is used across automotive refinishing, marine, construction and wood processing.
What machine should I pair the Polarstar disc with?
A 125mm random orbital (DA) sander is the ideal pairing. For automotive bodywork and panel correction, a variable-speed DA gives you control over cut rate, particularly on softer or heat-sensitive clear coats.
How does the anti-clogging design affect durability?
The special resin bonding and film substrate prevent paint and coating debris from loading the abrasive surface quickly. This means each disc cuts consistently for longer before losing efficiency, reducing your per-panel disc consumption.
What finish can I expect after using the 1200 grit Polarstar?
The 1200 grit leaves a fine, uniform scratch pattern that is ready for light cutting compound or a DA polishing stage. On hard clear coats you will see a haze-free, consistent scratch depth that compounds out efficiently without needing intermediate steps.