APV’s Disappearing Crayon (C-0300) is specifically designed to visibly mark uncured rubber surfaces to denote problem areas or identify material in a production process. The markings go away after the rubber is cured.

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The crayon’s mark disappears from the surface or becomes no longer visible once the rubber part has been cured. Disappearing crayons are also a valuable tool for identification and quality control procedures in rubber manufacturing.

Crayons are available in standard, jumbo, and triangular sizes and can be applied manually or by machine.





Rubber & Plastics


Tire & Rubber

Product code:


Features & Benefits

Features & Benefits

  • Safe and easy to use
  • Disappears after curing
  • Assists the inspection process
  • Leaves no visible markings on the rubber surface


Product Data Sheets

Product Data Sheets


C-0300 (.pdf / 307KB)

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Crayons and inspection markers are ideal for industrial applications in the tire, rubber, hose, automotive, and other OEM industries.

ply markers
Crayons & Inspection Markers, Identification Marking

Ply Markers and Crayons

Ply markers and crayons have zero VOCs and are typically used to mark rubber surfaces for inspection and identification. Ply markers, also known as fugitive crayons, are a valuable tool for marking uncured rubber surfaces such as calendered material, plies, and bead rings.

APV UV Marking Crayon
Crayons & Inspection Markers, Identification Marking

UV Marking Crayon

APV's UV marking crayon (C-0303) is specifically designed to mark a rubber surface with a mark that is visible only under UV identification and inspection cameras. This crayon fluoresces under 365 nm ultraviolet light, making it a valuable tool for identification and quality control procedures in rubber manufacturing.

APV offers a complete line of coating and marking products for tire and rubber manufacturers.

View all Tire & Rubber Products