Machine oil contamination

Lines show up sometime after install

Machine oil contamination

Manufacturing issue

Machine Oil Contamination (Carpet)

Floor Detective® Claims and Conditions Guide

Summary

Machine oil contamination is a manufacturing-origin appearance condition that occurs when residual lubricants used during tufting (yarn insertion process), shearing (surface trimming process), or finishing remain on carpet yarns after processing. These oils are initially transparent and not visible but act as soil attractants once the carpet is placed into service, resulting in progressive dark linear or banded discoloration. The condition develops after installation as airborne soil and

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