What they are:
Thermostrip™ DC is a highly accurate heat indicator designed for use within a drying, curing, laminating or bonding process. The individual strip has 5 temperature events that when exposed to heat will permanently change color from silver to black Indicating attained temperature. The labels can be removed for reference and attached to an inspection report to serve as a permanent record.
How they work:
Thermostrip DC is chemical indicator (CI) that identifies irreversible temperature. These one-time use products undergo a phase change when they reach their rated temperature. This involves a sharply defined melting point that triggers an interaction between a chemical compound and a substrate to produce a permanent color change. CI’s are primarily used for temperature monitoring, providing evidence of attained temperature. Supplied as an adhesive strip or label they indicate whether temperature falls below or exceeds a rated temperature.