How do you know if you need the light or medium compound?

Thank you for your question! The 3M 36106 Perfect-It Gelcoat Medium Cutting Compound + Wax is formulated to remove moderate oxidation, weathering, dulling, and scratches as coarse as P1000 from gelcoat surfaces; leaving a high gloss wax finish. In contrast, the 3M 36110 Perfect-It Gelcoat Light Cutting Polish + Wax is designed to remove light to medium oxidation, swirl marks and scratches of P1500 or finer; leaving a smooth, high gloss wax finish. Oxidation of gelcoat surfaces can be assessed by the degree to which the white “chalk” transfers to the fingertip upon touch. Typically, light oxidation has virtually no transfer of the white “chalk” upon touch; whereas medium to moderate oxidation has partial/more substantial (although not heavy) transfer upon touch.

can you use on fiberglass tub?

I used it on a fiberglass boat and it worked great. I would think u should but I would ask a store that sells tubs.

Will this damage vinyl stickers (boat name & registration numbers)? Should I tape these areas off before buffing?

Thank you for your question! The 3M 36107 Perfect-It Gelcoat Medium Cutting Compound + Wax should not be put over any kind of decals, striping, vinyl stickers, etc.

What are the exact directions for using this product?

Wash very clean whatever you are working on (getcoat). Work in the shade defiantly. Tried in the sun, was tough to get off but came off. If possible use a buffer/polisher for ease. Pretty simple. I applied another gelcoat wax over. It works great on light to mid-medium jobs.

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3M Perfect-It Gelcoat Medium Cutting Compound + Wax

Product ID: 42859584

Details

Brand
3M
Grit Material
Aluminum Oxide
Grit Type
Medium
Item dimensions L x W x H
11.2 x 9.2 x
Material
Mixed

🚤Safe for gelcoat & fiberglass

⏱️Long-lasting wet formula

⚙️1500 grit medium cutting power

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Description

🚤 Restore your ride’s shine like the pros—because your boat deserves the best!

MARINE GRADE SAFETY - Scientifically formulated to protect and restore boats and RV fiberglass without damage.
EXTENDED WETNESS TECHNOLOGY - Stays wet longer on pads and surfaces, reducing downtime and boosting efficiency.
BALANCED MEDIUM GRIT FORMULA - Effectively removes moderate oxidation, scratches, and weathering for a flawless finish.
COMPLETE BOAT CARE ECOSYSTEM - Seamlessly pairs with 3M Perfect-It product family for tailored maintenance solutions.
PRO LEVEL ONE STEP REFINEMENT - Cut, polish, and wax gelcoat surfaces in a single, time-saving step.

3M Perfect-It Gelcoat Medium Cutting Compound + Wax is a professional-grade marine polish that combines medium-cutting power with durable wax protection. Designed specifically for gelcoat and fiberglass surfaces on boats and RVs, it removes moderate oxidation and scratches while leaving a glossy, weather-resistant finish. Its long-lasting wet formula maximizes compounding efficiency, making it a must-have in the 3M Perfect-It boat care lineup.

Specifications

ASIN	B01MXYXEL3
Best Sellers Rank	#20,972 in Automotive ( See Top 100 in Automotive ) #66 in Polishing & Rubbing Compounds
Brand Name	3M
Compatible Material	Fiberglass
Customer Reviews	4.7 4.7 out of 5 stars (1,295)
Global Trade Identification Number	00051131361065
Grit Material Type	Aluminum Oxide
Grit Number	1500
Grit Type	Medium
Included Components	Gelcoat
Item Dimensions	11.2 x 9.2 x 8.5 inches
Item Type Name	Gelcoat Medium Cutting Compound/Wax (Quart 946 mL)
Item Weight	2.3 pounds
Manufacturer	Perfect-It
Material Type	Mixed
Model	36106
Number of Items	1
Number of Packs	1
Part Number	36106
Set Name	Perfect-It
UPC	051131361065
Unit Count	32 Fluid Ounces

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£152.26

Duties & taxes included

In stock

Sold byAmazon Isle of ManDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Isle of Man.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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