TML & UT Label Specifications
Thickness Measurement Location (TML) point labels are constructed with:
3.5 mil matte silver mylar polyester material with a 1.0 mil UV laminate. The matte coating resists degradation from scuffing, chemicals, moisture and wide temperature fluctuations.
High-performance acrylic adhesive for excellent bonding to metals, HSE plastics and a wide variety of painted & textured surfaces.
Low-leachable chloride, fluoride and sulfur is in the adhesive.
Typical values for continuous temperature resistance range between -40°F (-40°C) and 300°F (149°C). The minimum application temperature is 58°F.

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TML Label – D:
Measures 1”x 2” with a .75” diameter opening for inspection and a blank space for on-site inscription.
A 1.0 mil environmental protectant laminate is included as an integral part of the label with a removable tab to overlay the inscribed marking.
The standard label is bright orange.
Wording: “DO NOT REMOVE, NDT PT”
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TML Label – E:
Measures 1.5” in diameter with a 1.0 mil environmental protectant laminate.
The standard label is bright orange.
Wording: “TML LOCATION, DO NOT REMOVE”
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TML Label – F:
Measures 1.25” in diameter with a .75” diameter opening. A 1.0 mil environmental protectant laminate is applied at the factory.
The standard label is bright orange.
Wording: “UT LOCATION, DO NOT PAINT”
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TML Label – H:
Measures 1.5”x 1.5” with a .625” diameter opening and a blank space for on-site inscription.
A 1.0 mil environmental protectant laminate is supplied as an integral part of the label with a removable tab to overlay the inscribed marking.
The standard label is bright green.
Wording: “DO NOT PAINT, NDT POINT”
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TML / UT Label Installation:
Be sure application surface is at room temperature or slightly higher. The minimum application temperature for the adhesive is 58°F (15°C).
Clean and dry the application surface for maximum bond strength. The surface should also be free of loose particulate, such as dust, dirt and corrosion. A typical cleaning solvent is heptane or an industrial grade isopropyl alcohol.
Note: Acrylic adhesive requires 48-72 hours to achieve 90% of its ultimate bond strength. Several weeks are required to achieve 100% of ultimate bond strength. Higher initial bonds are achieved through increased rub down pressure.