From LCR Hallcrest

The use of thermochromic liquid crystal (TLC) products in research and testing continues to grow.
The main application areas are in flow visualization and heat transfer studies, although the materials
can be used in virtually any work involving indication of temperature fields and thermal mapping. The
chemistry, physics and temperature indicating applications of TLCs are well documented in the open
and patent literature

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Products & Services
Industrial Thermometers
Industrial thermometers are basic bulb style thermometers designed for use in many industrial applications. Traditional liquid-in-glass design is typically used due to low cost and ease of use.
Temperature Sensors
Temperature sensors are measurement devices that infer temperature by sensing some physical characteristic (i.e. resistance, emf or thermal radiation).
Temperature Indicating Coatings and Materials
Temperature indicating paints and materials include labels, paints, crayons, or other markers that change color or shape when exposed to a certain temperature.  These products are typically non-reversible and are designed for one-time use.

Product Announcements
LCR Hallcrest -  Research and Test Kits
Thermochromic liquid crystals (TLC's) react to changes in temperature by changing color. TLC's have Chiral (twisted) molecular structures and are optically active. Direct white light is selectively... (read more)
LCR Hallcrest - Informational Website ColorChange.com
LCR Hallcrest unveiled its new website www.colorchange.com designed to offer insight into the technology surrounding thermochromic color changing graphic materials, specifically leuco dyes, liquid... (read more)
LCR Hallcrest - Thermochromic Liquid Crystals (LCs)
Thermochromic Liquid Crystals (LCs) can be highly temperature sensitive, change to many colors, and are more expensive than leuco dyes. LC's start black below their temperature range; go through the... (read more)
LCR Hallcrest - Thermostrip® DL Dishwasher Temperature Labels
LCR Hallcrest announces the release for sale of Dishwasher Temperature Indicators / Labels for Food Safety and HealthCare. Thermostrip® DL are self-adhering, waterproof and color-changing labels that... (read more)
LCR Hallcrest - Promotional Thermographics
Activation temperature points range from low refrigeration type temperatures through normal body temperatures to high temperatures that exceed the pain threshold. Cold Activated Thermochromic Ink is... (read more)
NuAire, Inc. - Durable Polypropylene Design
The FumeGard 162 Conventional Corrosive-Resistant Polypropylene Fume Hood is designed to capture, contain, and exhaust fumes, gases, vapors, mists, aerosols, and particulate matter generated within... (read more)
NuAire, Inc. - DIRECT HEAT MICROBIOLOGICAL CO2 INCUBATOR
In-VitroCell ES (Energy Saver) NU-5810 Direct Heat CO2 Incubator with Dual Sterilization Cycles... (read more)
NuAire, Inc. - Compounding Aseptic Isolator
The PharmaGard ES PR797 Compounding Pharmacy Isolator creates a recirculating positive pressure ISO Class 5 clean air controlled environment for aseptic compounding of non-hazardous drugs guaranteed... (read more)

Topics of Interest

The use of thermochromic liquid crystal (TLC) products in research and testing continues to grow. The main application areas are in flow visualization and heat transfer studies, although the materials...

The use of thermochromic liquid crystal (TLC) products in research and testing continues to grow. The main application areas are in flow visualization and heat transfer studies, although the materials...

This booklet provides an introduction to thermochromic liquid crystals (TLCs), how the materials work and how they are used. The major application areas are discussed and the processing and...

This booklet provides an introduction to thermochromic liquid crystals (TLCs), how the materials work and how they are used. The major application areas are discussed and the processing and...

The intention of the project was to evaluate aesthetic and technical performance of thermochromic dyes in conjunction with integrated heating mechanisms. Thermochromic dyes change color with...