Ply Marking Crayons & Dot Markers – NEW

Ply Marking Crayons

APV’s versatile Ply Marking Crayons are widely trusted throughout the tire and rubber industry. They are used at multiple stages of the tire manufacturing process, including marking raw material bales, fabric cord calendering, tread and sidewall extrusion, inner liner calendering, tire building, and final inspection.

Ply Marking Crayons are manufactured using a proprietary wax and pigment formulation that does not contaminate the rubber or cause delamination. They are suitable for marking uncured (internal) rubber surfaces—including calendered material, plies, and bead rings—as well as cured (external) rubber surfaces, such as defect areas identified during visual inspection.

Available in a variety of colors, Ply Marking Crayons are water and heat resistant, and perform in various environments, including high temperatures and humidity. They are applied by hand, and the tips are designed to enable inspectors to effectively mark minor details. The crayons are available in standard and extra-large sizes. They can also be used for other industrial applications including those that require marking on wet or dry surfaces as well as glass.

Ply Marking Crayons can soften and distort if stored above room temperature. Store in a cool, dry area between 50 and 75℉ (10-24℃) for a shelf life of up to five years.

Benefits:

• Wide range of vibrant colors
• Use on uncured and cured rubber
• Does not cause delamination
• VOC and HAPS-free
• Available in standard and extra large sizes

UV Marking Crayon

APV’s UV Marking Crayon is specifically designed to mark a rubber surface with a mark that is only visible under UV identification and inspection cameras.

UV marking crayon is compatible with uncured rubber surfaces and disappears after curing. This crayon fluoresces under 365 nm ultraviolet light, making it a valuable tool for identification and quality control procedures in rubber manufacturing.

Benefits:

• Leaves no visible markings on cured rubber
• Disappears after curing
• Safe and easy to use
• VOC and HAPS-free
• Available in standard size

Disappearing Crayon

APV’s Disappearing Crayon 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.

Disappearing crayons are also a valuable tool for identification and quality control procedures in rubber manufacturing.

Benefits:

• Colorless, disappears after curing
• Leaves no visible markings on cured rubber
• Safe and easy to use
• VOC and HAPS-free
• Available in standard size

Dot Markers

APV Dot Markers are an inspection tool used to denote high point and pass/fail marks during the uniformity inspection stage of tire production.

Dot Markers are offered in a variety of vibrant colors and are available in both water and solvent-based formulas. They come in three sizes: small, standard, and extra-large diameter dots. Dot Markers may be applied manually by hand or automatically applied at a uniformity machine.

• Water-Based Dot Markers – Water-based Dot Markers are HAPS-and VOC-free, water removable and aid with synchronization and process verification.
• Solvent-Based Dot Markers – Solvent-based Dot Markers are easy to use and fast-drying making them ideal for quick and efficient marking applications.

Benefits:

• Wide range of vibrant colors
• Water-based and solvent-based options
• Aids with synchronization and process verification
• Fast drying
• Available in small, standard and extra-large diameter dots (standard size marker produces approximately 5000 dots +/-10%)

Colorless

Disappears after curing.

Safe & Easy to Use

UV Marking Crayon contains no HAPs or VOCs.