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3M™ Perfect-It™ Gelcoat Medium Cutting Compound + Wax

3M™ Perfect-It™ Gelcoat Medium Cutting Compound + Wax

Medium-cutting gelcoat compound removes oxidation and weathering in one step; includes wax for one-step restoration on boats and RVs.

36016E

In stock

⚙ Ideal For

  • Fixing oxidised or chalked gelcoat
  • Seasonal boat restoration
  • RV surface preparation
  • Fleet maintenance
  • Non-silicone surfaces

✔ Benefits

  • Handles moderate damage
  • One-step compound and wax
  • Extended working time
  • Restores gloss finish
  • Reduces application time

Moderate oxidation, weathering, and chalking on older boats reduce gloss and require removal before protective finishing. Separate cutting, polishing, and waxing applications increase labour time and material cost, especially on larger surfaces and fleet maintenance applications.

3M Medium Cutting Compound + Wax addresses this by removing oxidation and scratches of P1000 or finer in a single application. It restores gloss and includes protection, eliminating the need for separate polishing or waxing steps.

Key Features

  • Removes scratches P1000 or finer — Handles oxidation, weathering, dulling, chalking, and minor defects. P1000 is suitable for moderate surface damage without the aggression of heavier compounds.
  • One-step compound and wax — Combines cutting power and protective wax in a single application, eliminating separate polishing and waxing passes.
  • Restores gloss and lustre — Leaves a high gloss wax finish that protects against weathering without requiring additional refinement steps.
  • Extended wet time — Formula provides longer working time, allowing extended application before requiring fresh material; reduces product waste.
  • Does not clog buffing pads — Maintains consistent performance during application; reduces interruptions for pad maintenance.
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£44.99 GBP
£44.99 GBP
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Taxes included. Shipping calculated at checkout.

Shipping Information

What Are My Shipping Options?

In-Store Pickup

In-Store pickup is available on all purchase. Pickups are available Monday - Friday between the hours of 9:00–17:00. 

An email confirmation will be sent when your order is ready for collection. 

Free Shipping

We offer free Standard (2-3 Days) shipping on orders within the United Kingdom on orders over £100. Please note, some large items that require specialist courier companies, such as large mirrors and palleted items are excluded from this deal.

Shipping Fees

We also offer shipping at the following rates:

Standard-Size Parcel

Standard (UK Only) - 2-3 Days - £2.99

Express (UK Only) - 1-2 Days - £4.99

International (EU) - 3-7 Days - £14.99

International (ROW) - 5-10+ Days -£23.99


Large Parcel

Standard (UK Only) - 2-3 Days - £2.99

Express (UK Only) - 1-2 Days - £4.99

International (EU) - 3-7 Days - £14.99

International (ROW) - 5-10+ Days - £69.99

Most UK orders will be sent using Royal Mail, with larger items being sent with DPD.

International orders within the EU will normally be dispatched with Royal Mail, DPD, or UPS.

International orders to the rest of the world will normally be sent with DPD or UPS.

Please note, international delivery charges are very volatile and subject to change. We will do everything in our power to honour the delivery fee, however, in some cases, shipping may increase in price. In this event, you will be given the offer to pay the difference or cancel the order and receive a full refund.

Please note, we may be subject to various rules and restrictions in relation to some international deliveries, and you may be subject to additional taxes and duties over which we have no control. If such cases apply, you are responsible for complying with the laws applicable to the country where you live and will be responsible for any such additional costs or taxes.

Dispatch Times

Orders placed before 15:00 Monday - Friday will be shipped on the same day. 

Orders placed after this time will be shipped on the following business day,

Please note, we are closed at weekends, as well as English Bank Holidays.

Returns Policy

Our refund policy can be found at the following address: https://esupplyline.com/policies/refund-policy.

Further Information

You can contact us for further information on our shipping policies using the following:

Phone: 01953 711 881

Email: sales@esupplyline.com

Live Chat: Available on our website, Monday - Friday, 8:30 - 17:00.

Contact Form: https://esupplyline.com/pages/contact

View full details

Description

This medium-cutting gelcoat compound is designed for boats, RVs, and marine surfaces with moderate oxidation, weathering, or chalking from UV exposure. It's the standard choice in the 3M Perfect-It range for typical restoration work and delivers professional-grade results for seasonal maintenance and pre-sale preparation. The integrated wax finish provides immediate protection without requiring separate waxing, making it ideal for fleet maintenance and high-volume detailing applications.

Which 3M Gelcoat Compound Should You Use? Light vs. Medium vs. Heavy

This medium-cutting compound is formulated for moderate oxidation and scratches of P1000 or finer. Use Medium for typical seasonal maintenance and moderate surface damage. Use Light (removes scratches P1500 or finer) only for final refinement and minor oxidation. Use Heavy (removes scratches P800 or coarser) first if the surface is severely damaged, heavily chalked, or has deep scratches. Many professionals apply Heavy first, then Medium for refinement, then Light for final clarity.

How to Prepare Gelcoat Before Buffing and Polishing

Before applying this compound, wash the gelcoat to remove salt, algae, and contamination. Clean surfaces allow the compound to bond and perform optimally. For weathered surfaces with heavy chalking or oxidation, light sanding improves cutting efficiency and reduces the number of buffing passes required.

Recommended Workflow for Different Gelcoat Conditions

For light oxidation or swirls: Use 3M Light Cutting Compound directly; one application provides cutting, polishing, and wax protection.
For moderate oxidation and weathering: Use this Medium Cutting Compound; it removes the oxidised layer efficiently in a single application.
For severe oxidation, deep scratches, or chalking: Use 3M Heavy Cutting Compound first to remove major damage, then use this Medium formula to refine the finish.

Application and Suitable Surfaces

This compound is suitable for non-silicone-sensitive gelcoat surfaces including marine vessels, RVs, and industrial equipment. It will not perform on bare wood, unsealed timber, or silicone-sensitive surfaces. Always test on an inconspicuous area first if surface compatibility is uncertain.

Limitations

This product is designed for moderate oxidation and weathering only. Severe surface damage, deep scratches, major chalking, or heavily neglected surfaces require a Heavy compound first. Do not use on bare wood, unsealed timber, exterior finishes beyond gelcoat, or surfaces that have been stripped with aggressive abrasives.

More Information

Application Instructions

  1. Wash and dry the gelcoat — Use appropriate marine soap and fresh water rinse; allow to dry completely before application to ensure optimal compound bonding.
  2. Apply compound to polishing pad — Dispense a suitable amount onto a clean wool or foam cutting pad (wool is recommended for medium compounds).
  3. Initial buffing pass — Using a rotary or orbital polisher, apply the compound with overlapping passes across a section. Use moderate to firm pressure and keep the pad moving. Continue until the product breaks down and the cutting action is progressing.
  4. Final polish pass — Reduce buffing speed and apply lighter pressure to blend and polish the area to a uniform gloss. This creates a smooth finish without swirls.
  5. Buff off residue — Use a clean microfibre towel to remove all remaining residue, working in straight lines to avoid creating new swirls.
  6. Inspect work — Check the surface in daylight from multiple angles to ensure complete oxidation removal and even coverage.
  7. Repeat on remaining sections — Work systematically across the hull or entire vessel, allowing each section to cool if needed.
  8. Allow cure time — Do not expose the buffed surface to water before the wax layer has fully cured.

Safety note: Use in well-ventilated areas; wear eye protection; avoid skin contact. Wash immediately if contact occurs. Keep out of reach of children.

Specifications

Product Type Gelcoat medium cutting compound and wax
Brand 3M™ Perfect-It™
Appearance White liquid
Container Bottle
Available Sizes 32 fl oz (946 mL); 1 Quart
Surface Type Gelcoat (non-silicone-sensitive)
Scratch Grade P1000 or finer
Application Method Rotary or orbital polishing buffer
Suitable For Marine gelcoat, RV exterior surfaces, industrial gelcoat applications (non-silicone-sensitive); boats, RVs, industrial equipment, fleet maintenance
NOT Suitable For Bare wood; unsealed timber; silicone-sensitive surfaces; painted surfaces; non-gelcoat finishes
Recommended For Moderate oxidation and weathering; P1000 or finer scratches; well-prepared gelcoat surfaces; typical seasonal maintenance and restoration
Part of System 3M Perfect-It Gelcoat Finishing System
Compatible Products 3M Boat Wash, Heavy Cutting Compound, Light Cutting Polish + Wax, Boat Wax
HS Code 3402.20

FAQs

How do I use this gelcoat compound on my boat or RV?

First, wash the surface to remove contamination and dry completely. Apply the compound using a polishing buffer, working in sections with moderate to firm pressure until the product breaks down. Reduce buffing speed and apply lighter pressure for final polishing. Buff off residue with a clean towel and allow the wax to cure before water exposure.

What's the difference between 3M Light, Medium, and Heavy cutting compounds?

Light removes fine scratches (P1500); Medium handles moderate oxidation and scratches (P1000); Heavy tackles severe oxidation and deep scratches (P800 and coarser). For typical seasonal boat restoration and moderate weathering, Medium is the most efficient choice. Use Light for final refinement; use Heavy only for severe damage.

Should I use Medium or Heavy compound?

Use Heavy if the gelcoat is severely oxidised, heavily chalked, or has deep scratches that require aggressive cutting. Use Medium for typical seasonal maintenance, moderate oxidation, and weathering. Many professionals apply Heavy first for major damage, then Medium to refine, then Light for final clarity.

Can I use this on my RV if I'm not sure whether it's silicone-sensitive?

Test the compound on a small, inconspicuous area first. This product is suitable for non-silicone-sensitive surfaces. If the tested area shows adhesion issues or clarity problems, your surface is silicone-sensitive and you should use a silicone-tolerant product instead.