What hardener should be used for what temp? Slow for hight temp fast for low temp?

Hardener Selection Chart FH611 (Fast Hardener): 55°-75°F FH612 (Medium/Standard Hardener) 70°- 90°F FH613 (Slow Hardener) 85°F and above

Can this be used on head lights?

I’m not sure I agree, I have been doing headlights in my downtime using High Solids Urethane Enamel for years and cars I did three years ago look good

What is the mix ratio?

Hello! Mixing ratio 4 parts clearcoat 1 part activator. Thank you!

Can this clear be mixed with another 4:1 acrylic clear brand?

I wouldnt advise mixing different brands together.

Finish 1 Automotive Refinish Ultimate Overall Clearcoat Fc720 1 Gallon

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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33065 kr

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Description

🚘 Elevate your ride’s finish to flawless—shine like you mean it!

DIY FRIENDLY FORMULA - Easy to apply and polish using cross-coat technique—pro results without the pro price.
VERSATILE APPLICATION - Compatible with basecoats and single-stage enamels for seamless refinishing.
PRECISION 4 1 MIX RATIO - Effortless blending with included medium universal hardener for perfect curing.
MIRROR LIKE GLOSS DEPTH - Achieve showroom shine with superior gloss and distinctness of image.
FLAKE RESISTANT DURABILITY - Engineered to resist flaking, ensuring a flawless finish every time.

Sherwin Williams Finish 1 Ultimate Overall Clearcoat is a premium high-solids urethane clearcoat designed for automotive refinishing. It delivers exceptional gloss, leveling, and durability with a 4:1 mixing ratio including a medium universal hardener. Ideal for both DIY enthusiasts and professionals, it provides a glass-like, flake-resistant finish compatible with basecoats and single-stage enamels.

Specifications

ASIN	B01MR96I32
Age Range Description	Adult
Best Sellers Rank	#1,869 in Automotive ( See Top 100 in Automotive ) #3 in Automotive Clear Coats
Brand	SHERWIN WILLIAMS
Brand Name	SHERWIN WILLIAMS
Color	Clear
Color Code	FFFFFF
Container Type	Can
Coverage	Medium
Customer Reviews	4.7 out of 5 stars 2,167 Reviews
Finish Type	Gloss
Included Components	Hardener
Is Waterproof	False
Item Form	Liquid
Item Volume	1 Gallons
Manufacturer	Sherwin-Williams
Model Name	Finish 1 Ultimate Overall Clearcoat
Paint Type	Spray
Part Number	FC720
Size	1 Gal with Medium Hardener FH612
Special Feature	Flake Resistant
Special Features	Flake Resistant
Specific Uses For Product	Interior/Exterior
Surface Recommendation	Automotive Metal
UPC	029316010145
Unit Count	160.0 Fluid Ounces
Water Resistance Level	Water Resistant

Reviews

A**O

29.01.2026

S**A

29.04.2026

A**R

13.04.2026

D**R

21.04.2026

S**T

28.01.2026

L**T

4.02.2026

R**I

16.10.2025

J**T

25.02.2026

G**T

28.09.2025

G**R

6.11.2025

G**R

21.05.2025

L**I

31.05.2025

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

33065 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered 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 Iceland.

Secure transaction

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Finish 1 Automotive Refinish Ultimate Overall Clearcoat (FC720), 1 Gallon | Medium Universal Hardener (FH612), 1 Quart Included

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Details

Description

Specifications

Reviews

Common Questions