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RUPES Marine XC-300 Fast-Cut Compound, 1Kg, 9.XC300/1KG
RUPES XC-100 Xtra Cut Compound in action
Person using a RUPES polisher on a yacht with two bottles of marine care products in the foreground
RUPES Marine XF-500 Fine Polish, 1L, 9.XF500 in action, 2
RUPES XC-300 Xtra Cut Compound in action, 3
RUPES Marine XC-300 Fast Cut Compound, rotary tools and buff pad recommendation image
RUPES Marine XC-300 Fast Cut Compound, DA tools and buff pad recommendation image
Optimized for Rotary
Optimized for Gear-Driven
Optimized for Random Orbital

RUPES Marine XC-300 Fast-Cut Compound, 1Kg, 9.XC300/1KG

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Product Overview:

RUPES Marine XC‑300 Fast Cut Compound (9.XC300/1KG) is a high‑performance marine polishing compound engineered to remove P1200–P1500 sanding marks on gelcoat and painted surfaces. Designed for OEM boat manufacturing, mold maintenance, and professional marine detailing, XC‑300 delivers fast, consistent defect removal with a cleaner, smoother finish than heavy‑cut compounds.

Ideal as the second step after XC‑100, or as a standalone fast‑cut solution on moderately weathered gelcoat, XC‑300 restores clarity, removes oxidation, and prepares the surface for final polishing with XF‑500 or XF‑600.

Compatible with all machine movement types, including rotary, random orbital, and gear‑driven polishers.

Packaged in a 1Kg (35.3 oz / 800 ml / 27.05 fl oz) container. Made in Italy.

Features and Benefits:

  • Removes P1200–P1500 sanding marks on gelcoat and marine coatings
  • Fast‑cut performance with a smoother finish than XC‑100
  • Ideal for OEM production, mold maintenance, and professional marine detailing
  • Excellent clarity improvement on oxidized or dull gelcoat
  • Works with wool or foam pads depending on desired finish
  • Low dusting formula for cleaner work environments
  • Compatible with rotary, random orbital, and gear‑driven polishers

Pad Pairing:

Pair XC-300 with your favorite polisher and the desired buff pad. Suggested RUPES buff pads for pairing with XC-300 below (click here for RUPES buff pad collection):

  • RUPES Twisted Wool Rotary Pads (9.BL…H series) — strong cut for moderate to heavy defects
  • RUPES Cut & Finish Wool Rotary Pads (9.BL…F series) — strong cut with improved finish
  • RUPES D‑A Coarse Wool Pads (9.BW…H series) — aggressive defect removal on oxidized gelcoat

Tool Compatibility:

RUPES XC‑300 performs exceptionally well with all RUPES polishers:

  • LRH12E Duetto Bigfoot Random Orbital Polisher
  • LHR15 Bigfoot Random Orbital Polisher
  • LHR21 Bigfoot Random Orbital Polisher
  • HLR15 iBrid Battery Random Orbital Polisher
  • HLR21 iBrid Battery Random Orbital Polisher
  • Mille LK900E (gear-driven)
  • iBrid Nano (long/short neck)
RUPES Marine XC-300 Fast Cut Compound, rotary tools and buff pad recommendation image
RUPES Marine XC-300 Fast Cut Compound, DA tools and buff pad recommendation image

Videos:

Recommended Use Cases:

  • Removing P1200–P1500 sanding marks
  • Medium‑heavy oxidation removal
  • Mold maintenance and OEM production
  • Refining after XC‑100
  • Preparing gelcoat for XF‑500 or XF‑600

Directions for Use:

  1. Shake well before use.
  2. Use wool pads for maximum cut; foam pads for refining.
  3. Prime the pad with a thin, even layer of XC‑300.
  4. Work in small sections using moderate pressure.
  5. Wipe residue with a clean microfiber towel.
  6. Follow with XF‑500 or XF‑600 for final gloss.

Tips for Success:

  • Clean pads frequently to maintain cutting performance
  • Do not oversaturate wool pads
  • Use slower arm speed for deeper defects
  • For dark colors, always follow with a finishing polish
  • Keep surface cool to avoid gelcoat smearing

Technical Information:

  • Size: 1Kg (35.3 oz / 800 ml / 27.05 fl oz)
  • Part Number: 9.XC300/1KG
  • Cut Level: Fast Cut / Medium‑Heavy
  • Finish Quality: Medium / High (depending on pad)
  • Movement Type: Rotary / Random Orbital / Gear‑Driven
  • System: RUPES Marine Fast‑Cut System

FAQ:

What sanding marks can XC‑300 remove? XC‑300 removes P1200–P1500 sanding marks on gelcoat and marine coatings.

Is XC‑300 more aggressive than XC‑100? No — XC‑100 is the heavy‑cut compound. XC‑300 is the fast‑cut, medium‑heavy step.

Can XC‑300 be used on oxidized gelcoat? Yes — it works extremely well on moderate oxidation.

Should I follow XC‑300 with another polish? Yes — use XF‑500 or XF‑600 for maximum gloss.

Which pads work best with XC‑300? Rotary Twisted Wool, Rotary Cut & Finish Wool, D‑A Coarse Wool depending on desired finish.

About Us:

SMSDistributors.com is a direct supplier and stocking distributor of RUPES products and other professional sanding, polishing, and surface preparation equipment. We support automotive, marine, woodworking, industrial, and commercial finishing professionals with high‑performance tools, abrasives, and accessories from leading brands including RUPES, Sandwox, Mirka, Indasa, Sunmight, and others. We provide fast shipping, reliable inventory, and a curated selection of professional‑grade equipment for dust‑free sanding and efficient work environments.

Category: RUPES polishing compounds, pads, tools, and surface preparation products for automotive, marine, woodworking, and industrial finishing.