Marking materials include inks, coatings, laser marking materials, tapes, and other supplies used to identify industrial parts, products, materials and packaging. Marking materials are available in many different forms and are designed for specific types of substrates. Some products are dispensed as aerosols, liquids, powders, pastes, solids or transfer tapes. Others are packaged as cartridges, crayons, pencils, films, or laminates. Depending on their form, marking materials can be applied with a brush, copier, roller, printer, or screen. Application methods also include curtain, dip, immersion, electrostatic, spin, and spray coating. Marking materials for metal, plastic, composite, and wood substrates are commonly available. Suppliers may designate products as suitable for aluminum, anodized surfaces, asphalt, ceramics, porcelain, crystals, fabric, fiber, fiberglass, food products, glass, graphite, paper, paperboard, rubber, silicon, or steel.    

Marking materials differ in terms chemistry and color. Inorganic chemistries often contain silicates, cements, or glazes. Ceramic compounds consist of oxides, carbides, nitrides, carbon and other non-metals with high melting points. Resin bases and polymer binders are natural or synthetic, translucent or transparent, and solid or semi-solid. Examples include acrylic, alkyd, copal ester, epoxy, polyurethane, polyvinyl chloride (PVC), and silicone chemistries. Solvent, oil, and water-based marking materials are also commonly available. Wax coatings repel water and are suitable for use with corrugated paper boxes or cardboard. Metallic marking materials are filled with metals such as aluminum, copper, zinc, or stainless steel. In terms of color, choices for marking materials include: black, blue, brown, gray, green, orange, purple, red, white, yellow, clear, and transparent.

Selecting marking materials requires an analysis of processing parameters and performance specifications. Processing parameters include coverage, wet thickness, dry thickness, cure or dry temperature, cure or dry time, viscosity, specific gravity, humidity, and particle size. Pot life and VOC content are also important considerations. Pot-life is the time between the mixing stage and the gel stage at which a marking material remains usable at 77^o F. Pot life for epoxies depends on variables such as temperature, the shape of the container, and the hardener used. Volatile organic compound (VOC) content is regulated by state, federal, and provincial governments. Performance specifications for marking materials include conductivity, resistivity, dielectric strength, index of refraction, and transmission.

Suppliers of marking materials describe products in terms of features and applications. Some marking materials are abrasion resistant, chemically resistant, conductive, dielectric, glow-in-the dark (photoluminescent), heat resistant, impact resistant, or designed for high-temperature applications. Others are temperature indicating, VOC compliant, waterproof, weatherproof, water repellant, wear resistant, or reflective. UV resistant marking materials protect against damage from ultraviolet (UV) radiation. General-purpose products are designated for interior or exterior use. In terms of applications, marking materials are used in a variety of market segments, including: aerospace, agriculture, automotive, commercial, chemical processing, material processing, mining, military, pharmaceutical, food processing, semiconductor, and security. 

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AZoM™ - The A to Z of Materials and AZojomo - The... AZoM? - The A to Z of Materials and AZojomo - The "AZo Journal of Materials Online" The Premier On-Line Materials Information Web Site, Sections See AZoM Information

FAQ on Hazardous Materials Marking Q. Two different hazardous materials (i.e., different shipping names and identification numbers) in non-bulk packages are loaded onto a See Office of Hazardous Materials Safety Information

Engraving Materials Engraving Materials Choose, Research & Enquire The engraving materials ... Laser and Sign Technology offers laser marking units for

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Part #	Distributor	Manufacturer	Product Category	Description
4129.063	Newark	MENTOR	All Supplier Direct Ship	CAP, KNOB, BLACK; Colour:Black; Dial Marking:Y; Diameter, knob:9mm; Material:Plastic RoHS Compliant: Yes
4130.063	Newark	MENTOR	All Supplier Direct Ship	CAP, KNOB, MATT, BLACK; Colour:Black; Dial Marking:N; Diameter, knob:13mm; Material:Plastic RoHS Compliant: Yes
4132.063	Newark	MENTOR	All Supplier Direct Ship	CAP, KNOB, MATT, BLACK; Colour:Black; Dial Marking:N; Diameter, knob max:23mm; Diameter, knob min:21.5mm; Material:Plastic RoHS Compliant: Yes
499.642	Newark	MENTOR	All Supplier Direct Ship	CAP, KNOB, GLAZED, RED; Colour:Red; Dial Marking:N; Diameter, knob:13mm; Diameter, knob max:14.5mm; Diameter, knob min:11.8mm; Material:Plastic RoHS Compliant: Yes
499.643	Newark	Mentor	All Supplier Direct Ship	Cap, Knob, Glazed, Black; Colour:Black; Dial Marking:N; Diameter, Knob:13Mm; Diameter, Knob Max:14.5Mm; Diameter, Knob Min:11.8Mm; Material:Plastic Rohs Compliant: Yes

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