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Mirka Polarshine Marine Heavy Cut Compound 1L

7994510111HC

Regular price
$99.00
Regular price
$99.00
Sale price
$99.00
Price includes GST. Shipping calculated at checkout.

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Polarshine Marine Heavy Cut Compound

Cut through heavy defects fast and bring gelcoat surfaces back to life. Mirka Polarshine Marine Heavy Cut is a professional-grade, water borne compound engineered for aggressive correction with a high-gloss finish.

Key Benefits

  • Heavy cut performance – Permanently removes severe oxidation, deep scratches, and sanding marks (P800 and finer)
  • High-gloss result – Delivers a deep, reflective finish in minimal time
  • Water borne & silicone-free – Body shop safe; easy clean-up with reduced residue
  • Efficient workflow – Can act as a one-step solution on light-coloured gelcoats
  • Time-saving – Rapid defect removal with fewer passes

Applications

  • Marine gelcoat surfaces (boats, yachts, watercraft)
  • Manufacturing and restoration processes
  • Ideal for heavily weathered or oxidised finishes requiring aggressive correction

How to Use

  1. Apply a moderate amount of compound to the surface
  2. Work with a twisted wool pad on a rotary polisher for best cut and finish
  3. Polish until defects are removed and gloss develops
  4. Wipe clean with a microfibre cloth
  5. Repeat if necessary for deeper defects

Tip: Avoid over-application to minimise splatter and maximise control.

Storage

Store between 5°C and 35°C. Do not allow to freeze.

FEATURES
  • Heavy cut compound for rapid defect removal
  • Permanently removes severe oxidation and deep scratches
  • Eliminates sanding marks from P800 and finer
  • Produces a deep, high-gloss finish
  • Water borne formula for easy clean-up
  • Silicone-free (body shop safe)
  • Suitable for gelcoat surfaces
  • Can be used as a one-step solution on light colours
  • Fast working to reduce polishing time
SPECIFICATIONS

Colour: White

Density: 1.23 g/ml

PH: 2.5-4.5

VOC Content: 16.8 %

SUITABLE FOR

Marine gelcoat surfaces (boats, yachts, watercraft)
Severely oxidised finishes requiring aggressive correction
Deep scratches and sanding marks (P800 and finer)
Marine manufacturing and restoration applications
Professional detailers, boat builders, and repair technicians
Light-coloured gelcoats where a one-step cut and finish is achievable

FAQs

Which Polarshine Marine compound should I choose?

Choose Heavy Cut for severe oxidation, deep scratches, and sanding scratches from grit 800 and finer. Choose Medium Cut for oxidation and sanding scratches from grit 1000 and finer, especially on topcoat and clearcoat surfaces. Choose Fine Compound Antihologram as the finishing step to remove holograms and swirl marks while improving gloss on gelcoat, topcoat, and clear coat surfaces.

Can Heavy Cut or Medium Cut be used as a one-step polish?

Yes. Heavy Cut and Medium Cut can both be used as a one-step solution on light-coloured surfaces, depending on the level of oxidation and scratches. Use Heavy Cut for harder gelcoat restoration and heavier defects, and Medium Cut for topcoat and clearcoat surfaces where a balanced cut and gloss finish is needed.

When should I use Fine Compound Antihologram?

Use Fine Compound Antihologram after Heavy Cut or Medium Cut when you want to remove holograms, swirl marks, or polishing marks left from previous stages. It is the best choice for the final gloss refinement step on marine gelcoat, topcoat, and clear coat surfaces.

What pads should I use with each compound?

Use Heavy Cut with a twisted wool or lambswool pad. Use Medium Cut with twisted lambswool or lambswool pads. Use Fine Compound Antihologram with foam polishing pads, such as yellow or black M foam pads.

What machine speed should I use?

For Heavy Cut, use a rotary polisher at 1000–1500 rpm. For Medium Cut, use a rotating/rotary polisher at 800–2000 rpm. For Fine Compound Antihologram, use a rotating/rotary polisher at 800–2000 rpm.

Are Polarshine Marine compounds water borne and silicone-free?

Yes. The Polarshine Marine Heavy Cut, Medium Cut, and Fine Compound Antihologram compounds are water borne and silicone-free, making them suitable for professional marine polishing workflows where clean finishing and easy wipe-off are important.

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Mirka Polarshine Marine Heavy Cut Compound 1L Polarshine
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