Paints and Finishing› Paints, Coatings and Markers

Sherwin-Williams

Ultrasystem Speed-Plus Performance Hardener, 1 qt

$249.74

SKU: UH904-4

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return

Overview

The Sherwin-Williams UH904-4 is a Speed-Plus Performance Hardener. It comes in a liquid form and is packaged in a 1 qt can. This hardener is part of the Ultrasystem® line.
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The Sherwin-Williams UH904-4 Speed-Plus Performance Hardener is a liquid formulation designed to enhance paint performance. Packaged in a convenient 1 qt can, this hardener is a component of the Ultrasystem® product line, known for its quality and reliability in paint applications. This product is specifically identified by the part number UH904-4 and manufacturer model UH90414. It is a liquid hardener, not rubberized, and adheres to GHS and OSHA hazard standards, including a California Proposition 65 warning for potential cancer and reproductive harm. As a specialized performance hardener, it is intended for use within specific paint systems where enhanced durability and finish are required. Users should consult Sherwin-Williams' technical data sheets and application guides for precise usage instructions and compatibility with other Sherwin-Williams paint products.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandSherwin-Williams
Part NumberUH904-4
CategoryPaints and Finishing
5,000+ Trusted brands
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(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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