This specification covers the requirements of a two component, low MDI structural foam which may be applied after paint on E-coated metal and used for structural reinforcement of body cavities such as pillars, rails and other areas where lightweight structural enhancement may be required. This material may be baffled in order to inhibit expansion into areas of the body cavity where no structural reinforcement is required, or where holes for attachment of trim pieces or other parts are located. It must be capable of bonding to E-coated metal.

Material Identification.

This material is a 24lbs/ft3 two component material, comprising of an isocyanate prepolymer (9986185) and a curative component (9986241). The mix ratio for this material is 4:1. The mixture of 9986185 and 9986241 is identified as 9986242.

Typical Application.

Structural reinforcement of body cavities.

Remarks.

Adhesion of this material can only be achieved on E-coated or painted surfaces where wet (unreacted) foam contacts the substrate during dispensing. It is not recommended for use on bare metal.

This system must be capable of being metered, mixed and dispensed with current production equipment.