3M 08463

Harmonization Code : 3208.20.90 | Paints and varnishes that are dispersed or dissolved in a non aqueous medium

3M 08463

Main features

  • One-Hour Full Cure
  • Closed-Cell Cavity Filling
  • Direct Static-Mix Application

Product Description

3M Flexible Foam 08463 is a two-part urethane foam-in-place system for replacing flexible OEM foam in vehicle body cavities. The mixed liquid is dispensed through a static mixing nozzle and develops into a closed-cell, 100% solids foam. A typical full cure is one hour at 23 deg C, and unrestricted foam density is 0.13 kg/L. The flexible cured material provides insulation and sound-deadening functions in enclosed automotive structures, giving collision-repair technicians a direct-application material for restoring foam in door intrusion beams, roof bows, body-side panels, and other NVH cavities after welding is complete. It is supplied in a 200 mL dual cartridge for compatible static-mix application.

Key features

  • Static-mix dispensing: The dual cartridge combines both urethane components through a static mixing nozzle for direct cavity application.
  • Closed-cell 100% solids: The cured closed-cell foam provides insulation and sound-deadening functions without a solvent-bearing formulation.
  • One-hour full cure: The mixed foam reaches a typical full cure in one hour at 23 deg C.

Applications

Applications include replacement of flexible OEM foam in door intrusion beams, roof bows, body-side panels, and other closed vehicle cavities used for NVH reduction, insulation, or sound deadening.

Technical Specifications

General Properties
Color Color
Black | Amber/Brown
Component System Component System
Two Part (Urethane | Curative )
Solids Solids
100 %
Thermal Properties
Flash Point Flash Point
>149 °C
Service temperature Service temperature
-20 to 82 °C

Additional Information

Technical properties

As-supplied / before-processing properties

Values apply to the 200 mL two-part cartridge before mixing unless stated otherwise.

PropertyValueUnitMethod / condition
ComponentsUrethane base and curative-Two-part system before mixing
Component colorsBlack and amber / brown-Before mixing
Flash pointGreater than 149deg CTypical
Solids content100%Typical
ConsistencyLiquid-Before mixing
Technical properties

Final-state / after-processing properties

PropertyValueUnitMethod / condition
Service temperature-20 to 82deg CCured foam; typical
Foam density0.13kg/LUnrestricted foam; typical
Full cure time1hTypical at 23 deg C ambient and substrate temperature

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