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When you're hardening, tempering, or soldering a part and can't afford to overshoot the temperature, Tempilaq 700°F gives you a dead-simple way to know the exact moment your metal gets there. This is a temperature indicating liquid that you brush onto a clean surface. It dries to a dull, chalky film, and the second the part reaches 700°F, that film melts and turns glossy. No probe, no calibration, no reading a gauge while you're juggling a torch. When it melts, you're at temperature, plain and simple.
The formula is rated at 700°F (371°C) with accuracy within plus or minus 1% of the Fahrenheit rating, which is tight enough for serious work. It's non-flammable and free of n-Propyl Bromide, and the enhanced mix is built to resist settling in the bottle so it stays consistent shot to shot. It goes on smooth with the in-cap brush and dries fast on both horizontal and vertical surfaces, so you're not waiting around or fighting drips. Works on polished metal, glass, plastics, and rubber.
Gunsmiths lean on Tempilaq for jobs where a little too much heat draws the temper out of a barrel or ruins a finish. When you're soldering a front sight back onto a barrel or setting a lug, this lets you watch the working area and pull the torch before you cook the steel past where you want it. It's just as handy for general heat treating, annealing, calibrating ovens, and preventive maintenance work on anything where hitting a specific temperature matters.
The two-ounce bottle is the size most home shops and working benches reach for. A thin smear covers a lot of parts, so one bottle tends to last through plenty of projects. If you do any hardening, tempering, or torch soldering and want to stop guessing at temperature, this belongs on your bench.
You brush a thin coat onto a clean, dry surface and let it dry to a dull, opaque film. As the part heats up, the film stays chalky until it reaches 700°F, then it melts sharply and turns glossy. That change is your signal that the target temperature has been reached, so you can quench, pull the torch, or make your next move.
Yes, this is a common gunsmithing use. Applying it near the joint lets you watch the working area and back off the heat before you draw the temper out of the barrel steel or scorch the surface. It gives you a visual cue instead of guessing how hot the metal has gotten under the torch.
No. Part of the appeal is that it requires no calibration, no probe, and no instrumentation. You just brush it on and read the result by eye, which makes it fast and reliable for both furnace and open flame work.
It's designed for polished metal, glass, plastics, and rubber. The quick-dry formula lays down cleanly on both horizontal and vertical surfaces, so you're not limited to flat, upward-facing parts. Just make sure the surface is clean and dry before you apply it for the most accurate read.
| UPC | 608050122125 |
|---|---|
| Manufacturer |
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