.5 oz. USC Liquid Hardener - US Chemical & Plastics

The US Chemical & Plastics 30020 .5 oz. USC Liquid Hardener is a professional-grade MEKP catalyst engineered to reliably cure polyester body fillers and resins. Its consistent liquid formulation ensures predictable performance, providing essential control for achieving precise cure and optimal bond strength in both automotive and industrial composite applications. This hardener supports durable, lasting repairs in demanding professional environments.

Key Features

• Reliable Curing Activation: Formulated to effectively activate polyester body fillers and resins, promoting thorough, uniform curing and dependable bond strength for lasting repairs.
• Consistent Liquid Application: This clear liquid hardener integrates and mixes easily, ensuring even dispersion within fillers and resins to minimize soft spots or under-cured areas.
• Optimized for Controlled Dosing: The compact 0.5 oz. size is suitable for small repairs, spot work, and precise material dosing, helping to reduce waste and prevent over-mixing.
• Enhanced Repair Durability: Facilitates durable repairs that exhibit improved resistance to impact, shrinkage, and premature failure during subsequent finishing stages, including sanding, priming, and topcoating.
• Professional-Grade Formulation: Manufactured by US Chemical & Plastics, this hardener delivers consistent, repeatable results crucial for quality assurance in demanding body shop and industrial settings.

Applications

The USC 30020 Liquid Hardener is primarily used to catalyze polyester body fillers on various substrates, including steel, aluminum, and properly prepared OEM and refinish surfaces in automotive collision repair. It is effective for tasks such as dent repair, panel smoothing, feather edging, and surface finishing before primer and paint application. Beyond automotive use, it is suitable for curing compatible polyester and fiberglass resins in marine repair, RV and trailer panel restoration, and general industrial composite fabrication requiring accurate, small-batch hardener dosing.

Specifications

• Manufacturer: US Chemical & Plastics (USC)
• Model Number: 30020
• Product Name: .5 oz. USC Liquid Hardener
• Volume: 0.5 fl oz
• Weight: 0.03 lb
• Dimensions: 1 x 1 x 1 in