• KH2021 Ultra Flow Urethane Clearcoat Hardener, 1 Quart
    • KH2021 Ultra Flow Urethane Clearcoat Hardener, 1 Quart
    • KH2021 Ultra Flow Urethane Clearcoat Hardener, 1 Quart
    • KH2021 Ultra Flow Urethane Clearcoat Hardener, 1 Quart
    • KH2021 Ultra Flow Urethane Clearcoat Hardener, 1 Quart
    • KH2021 Ultra Flow Urethane Clearcoat Hardener, 1 Quart
    • KH2021 Ultra Flow Urethane Clearcoat Hardener, 1 Quart

    KH2021 Ultra Flow Urethane Clearcoat Hardener, 1 Quart

    Custom Shop
    SKU: CUS KH2021-QT
    Rated 5.0 out of 5
    Based on 1 review
    $104.99
    WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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    Product Details
    • DESIGNED FOR KC2020 CLEARCOAT: Formulated specifically for use with Custom Shop KC2020 Ultra Flow Clear. Ensures proper curing, adhesion, and performance for professional automotive clear coat applications.
    • PRECISE 4:1 MIX SYSTEM: Engineered for a consistent 4:1 mix ratio with KC2020 clearcoat. Delivers reliable activation for optimal gloss, durability, and long-lasting finish results.
    • SIZE MATCHED FOR CONVENIENCE: Available in Quart and 8 oz Half Pint sizes. Quart pairs with KC2020 Gallon, while Half Pint (8 fl oz) pairs with KC2020 Quart for accurate mixing and minimal waste.
    • PROFESSIONAL URETHANE ACTIVATOR: High-performance urethane hardener promotes proper crosslinking for a tough, durable clear coat finish resistant to weathering, chemicals, and UV exposure.
    • OPTIMIZED FOR FLOW & FINISH: Works with KC2020 to enhance flow, leveling, and final gloss. Supports easy spraying, sanding, and buffing for a smooth, show-quality automotive finish.
    Product specifications
    Color Clear
    Size Quart
    Documents & Info
    SDS Download
    Service & Support

    Questions about setup, compatibility, or your order? We're here to help.

    Customer Service: (858) 909-2110
    Monday-Friday: 7am-5pm PST
    Saturday: 7am-4pm PST
    Sunday: Closed

    Email Support: support@tcpglobal.com
    We typically respond within 1 business day.

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    Reviewed by Troy B.
    Verified Buyer
    Rated 5 out of 5
    Review posted

    Thanking this who made this possible

    I'd been introduced to KC2020 by my friend and mentor Pete"Hotdog" Finlan a number of years ago. Been a fan ever since and very excited to see it available.

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