LAQ

Supported Applications

The OMEGALAQ™ Liquid Temperature Indicating Lacquers are temperature-indicating liquids designed for monitoring temperatures on surfaces where solid markers may not leave a distinct mark. The product is applied to smooth surfaces including glass and polished metal, as well as fabrics, rubber, and plastics.

Operating Conditions & Performance

The series operates by changing from dull-opaque to glossy-transparent when the specified temperature is reached. This phase change occurs on the order of milliseconds (0.001 sec). The lacquers are available for process temperatures up to 2000°F (1093°C) with an accuracy of ±1.0%. Specific temperature points range from 175°F to 325°F, 400°F to 700°F, 750°F to 1200°F, and 1250°F to 1900°F.

Notes on operating conditions include:

• Certain temperature points are identified as best candidates for high vacuum applications.
• The product tends to outgas in a vacuum environment.

Configuration Options

The series is offered in 2-oz bottles of liquid lacquer, with model numbers following the format LAQ-0(*)G where (*) represents the temperature rating. For example, LAQ-0250G indicates OMEGALAQ™ liquid rated for 250°F (121°C). The series supports thinning to ensure workable consistency without affecting accuracy.

Available options and accessories include:

• TAP Adhesive Labels: Rated to a maximum of 356°F (180°C), supplied in packages of 100 per roll. Note that the source lists TAP labels as rated to 350°F, with an additional note specifying a maximum temperature of 180°C (356°F).
• GREEN LABEL THINNER: Available in 2 oz bottles or pint sizes.
• LAQ-KIT-(*)†† Experimental Kit: Includes 2 oz lacquer, 2 oz thinner, and 100 TAP adhesive labels. Temperature ranges for kits are available from 175° to 325°F.

Key Product Differences

Variants within the LAQ series differ by their specific temperature activation point. The catalog lists discrete temperatures across four primary bands:

• 175°F to 325°F band: Includes points such as 175°, 200°, 225°, 250°, 275°, 300°, 313°, and 325°.
• 400°F to 700°F band: Includes points such as 400°, 425°, 450°, 475°, 488°, 500°, 550°, 575°, 600°, 650°, and 700°.
• 750°F to 1200°F band: Includes points such as 750°, 800°, 850°, 900°, 950°, 1000°, 1050°, 1100°, 1150°, and 1200°.
• 1250°F to 1900°F band: Includes points such as 1250°, 1300°, 1400°, 1450°, 1500°, 1600°, 1700°, 1800°, and 1900°.