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Mirka Iridium SR is a premium finessing abrasive designed for the finest finishing stages in automotive refinishing, collision repair, and vehicle manufacturing. Engineered with efficient silicon carbide grains and a stable, robust backing, it delivers consistent results when sanding clearcoat, top coat, lacquers, and composites.
The advanced slurry coating technology creates a uniform scratch pattern that is fast and easy to polish out, ensuring superior finish quality and reducing buffing time. Optimized for precision and durability, Iridium SR performs exceptionally well in professional applications. For best results, pair it with the Mirka AOS-B 130NV cordless sander.
Features & Benefits:
Silicon carbide grains – Delivers sharp, consistent cutting power
Slurry coating – Produces an easy-to-polish scratch pattern
Strong, stable backing – Ensures reliable performance and longevity
Ideal for fine finishing – Perfect for automotive and composite applications
PSA attachment – Quick and secure disc changes
The slurry coating allows for a scratch pattern that is easy and fast to polish out and gives an excellent quality consistency. Iridium SR is best paired with Mirka’s ergonomic cordless sander, the Mirka AOS-B 130NV.
FEATURES
Silicon carbide grains – Delivers sharp, consistent cutting power
Slurry coating – Produces an easy-to-polish scratch pattern
Strong, stable backing – Ensures reliable performance and longevity
Ideal for fine finishing – Perfect for automotive and composite applications
What is Iridium SR 32mm PSA designed for?
A premium abrasive disc for final-stage sanding in automotive refinishing, collision repair, and transport/vehicle manufacturing.
What advantages does Iridium SR provide?
It delivers uniform scratch patterns that are fast and easy to polish, refined consistency, and durable abrasive life.
Which tools are recommended for use with Iridium SR? Works best with Mirka cordless sanders—such as the AOS-B and AROS-B series—for precise control during spot repairs and finishing.
How should water be used with Iridium SR?
When sanding with Iridium SR, water is used in a controlled and minimal manner, usually with accessories like the Mirka Finessing Damper. This helps keep the abrasive clean, reduce dust or residue, and maintain a consistent finish.
Which industries or trades benefit from this product?
Vehicle and transport manufacturing (quality control and surface finishing)
Composite fabricators (e.g., marine or aerospace applications)
How should Iridium SR fit into a finishing workflow?
Iridium SR is used in the final sanding stage before polishing. After sanding, the surface is cleaned and polished with Mirka polishing compounds (such as Polarshine or PRO Iridium 1250) and Mirka pads.
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Wendy Astleford
Best Abrasives - most appropriate company name
Absolutely stellar customer service, well above par and enjoyable as much as helpful, and the products are 10/10 - will be back again and again and again…
Mirka Roundy Hand Sanding Block Kit
Ian Douglas
Mirka AROS-B is a sensational sander that will save untold time and effort!
I spend hours on manually sanding the curves in the depressions I route in my charcuterie boards as there's just no other way to do it, using the AROS-B sander I can now do a full board in around 20 minutes and then have it ready to oil! I estimate it's saving me at least 3-4 hours per board.
Expensive tool but it reall works fantastic with a lot of grunt, and saves an incredible amount of time and effort! I love it so much a week later I bought the AOS-B as well!
Couldn't recommend this unique sander highly enough for fiddly awkward sanding jobs!
I received my mixed box of 125mm Mirka Galaxy discs from Best Abrasives a little while ago...that stuff is amazing!
I let the 80 grit go on a piece of rough sawn Camphor Laurel and it was smooth in a couple of minutes. Very impressive compared to other brands...I'll be back for more! 🙂
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Paul Joske
Hand sanding
Impressed with the quality and looking forward to trying with the different profiles. Have been using the flat version for the last 8 years and it is a game changer for block sanding, especially with the Abra Net abrasive.
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TADS EMBROIDERY
Foam Sanding Pads
These foam sanding pads would have to be the best I have ever used
Impressed with the quality and looking forward to trying with the different profiles. Have been using the flat version for the last 8 years and it is a game changer for block sanding, especially with the Abra Net abrasive.
