Before this question can be answered, we need to ask how you define “temporary.” Only some materials will withstand temperatures up to 1400°F. Companies such as Cotronics Corp. (Brooklyn, NY) and Aremco (Valley Cottage, NY)—to name just a few—offer high-temperature adhesives. These adhesives are often modified with fillers such as alumina, zircon, mica, or ceramics that allow the adhesive to withstand higher-temperature environments. Some materials, including liquid materials or tape-type products, have a continuous-service temperature of 1500°F and a melting point of 2800°F. So in one sense, these adhesives are permanent at 1500°F but temporary as you raise the temperature. Some epoxy systems can withstand temperatures up to 4000° and 5000°F.

Thus, the question becomes: How long should the adhesive survive at 1400°F? If the answer is minutes, finding a material that can survive short bursts of high temperatures for only a little while may be sufficient. For this purpose, a number of different chemistries, such as silicone or epoxy, are available. Typically, unfilled organic adhesives such as acrylics and urethanes will break down long before they reach 1400°F.

The last question is: What are the properties needed? Does the adhesive need to be clear, or is opaque acceptable? How do you want to remove the material? Unfortunately, there is no simple answer to these questions. The technical support groups at the companies mentioned above may be able to help further or recommend options for you to consider.