FRP Core Rod Dye Penetration Test Equipment

FRP Core Rod Dye Penetration Test Equipment

Vacuum-assisted dye penetration testing system for detecting internal voids and fiber-resin interface defects in FRP/ECR core rods for composite insulators.

Published: 2026-04-30 | Category: Material & Component Test Equipment

Technical Specifications

ParameterSpecification
Test MethodVacuum dye penetration + sectioning
Dye TypeFluorescent or visible dye penetrant
Vacuum Level< 5 mbar
Penetration Time15-30 minutes
SpecimenCore rod cross-sections, 10-30mm
Applicable StandardsIEC 61109, IEC 62217

Key Features

Detecting Internal Defects in FRP Core Rods

FRP core rods can contain manufacturing defects — voids, dry fibers, contamination, or delamination between glass fiber and resin. These defects are impossible to detect by visual inspection alone. The dye penetration test, combined with cross-sectioning, reveals internal defects that would otherwise become failure initiation points in service.

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