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3M™ Structural Sealing Tape 5230

3M(TM) Structual Sealing Tape
3M(TM) Structual Sealing Tape
3M™ Structural Sealing Tape 5230 is a white, 0.5 mm (0.02 in) thick, conformable, PVC-free structural sealing tape formulated to seal automotive body joints on hidden surfaces.
  • Offers an outstanding seal for gaps and openings up to 2 mm, when cured.
  • Linerless, repositionable and tack-free, the tape is easily applied to clean or E-coated surfaces
  • Readily conforming to irregular surfaces, the tape is well suited to cover spot welds, weld flash, pillowing, and other surface imperfections treatable in the sealer deck or paint shop
  • Uniquely formulated, the tape has both a controlled melt flow layer for sealing or gap filling and a barrier layer for additional sealing or prevention of blow-throughs
  • Once cured, the thermoset tape forms a hard, smooth paint-receptive surface
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Key Attributes

3M™ Structural Sealing Tapes offer optimal design freedom. They can be painted and supply the ideal base for perfect surfaces. They are applied as tape and then are heated to flow around the joints and cure to a smooth, hard, paint-receptive surface. Typical applications are sealing of roof ditches and other body joints.


ApplicationsHole sealing, Roof ditch sealing, Molded part replacement, Panel joint and edge seal bonding
Cure Temperature140°C (284°F)
Form TypeHigh Modulus Tape
Manufacturing SegmentBody-in-White, Exterior
Maximum Cure Conditions140°C (284°F)
Minimum Cure Conditions15°C (59°F)
Product FormStrip, Diecut Part
Shelf Life6 months when stored at temperatures lower than 5°C (41°F). 1 month when stored at temperatures between 5°C - 35°C (41°F - 95°F)
Solids Level99%
SubstratesMetal, Paint Panel, Composites
Thickness (mm)0.5 mm