PPG OMNI MH284/8Z Undercoat Hardener High Temperature Half-Pint

The PPG OMNI MH284 Undercoat Hardener – High Temperature is a professional-grade isocyanate hardener designed for use in warm or high-temperature spray environments. This half-pint (8 oz) pack size is ideal for smaller jobs and over-the-counter sales, providing the convenience of a right-sized quantity without compromising performance.

Key Features:

• Formulated specifically for high-temperature application conditions
• Designed for use with MP282 High Build Primer and the MP23X series sealers (white, gray, and dark gray)
• Uses a 4:1:1 mixing ratio (primer/sealer : hardener : reducer) for consistent, reliable results
• Half-pint (8 oz) size complements quart-sized MP282 and MP23X products
• Part of the trusted PPG OMNI professional automotive refinish system

The MH284 hardener is an essential component of the OMNI undercoat system, helping to deliver a durable, corrosion-resistant foundation for topcoats. It is formulated to cure properly in higher ambient temperatures where standard hardeners may underperform.