Expanding foam NITOHARD

Overview
Epoxy foam-type reinforcing material designed to adhere to steel panels, including curved surfaces.

Description
As steel panels become thinner, issues such as reduced rigidity arise. NITOHARD is an epoxy-foam reinforcing material developed with Nitto's polymer technology. An adhesive layer is applied to the epoxy resin to enable firm initial adhesion to steel panels and conformity to curved surfaces. NITOHARD expands and cures using the heat released during paint-drying, providing partial reinforcement to steel panels.

Features

• Can be attached directly to steel panels; foams and cures in place when heated to provide reinforcement.
• Initial adhesive properties allow attachment to a variety of substrates.
• Flexible before foaming to conform to complex shapes and curved surfaces; good punchability for subsequent processing.
• Wide operating temperature range; resists degradation at low and high temperatures.
• Special resin-layer design reduces substrate strain after curing.

Technical specifications

• Material type: epoxy foam with adhesive layer.
• Main function: partial reinforcement of steel panels to restore rigidity.
• Adhesive support: adhesive applied to epoxy resin for bonding to steel and other substrates.
• Curing method: expansion and curing triggered by heat during paint-drying.
• Flexibility: flexible before foaming to allow application on curved and complex shapes.
• Perforability: good, enabling punching and downstream processing.
• Temperature range: wide operating range without significant degradation.
• Layer design: resin-layer structure minimizing substrate stress after curing.

Documentation
Brochure available: AUTOMOTIVE_en.pdf