TSI Supercool12855 Blue Warranty Seal Marker, 1.8 oz

I use this on client's duplexers after tuning and before shipping to help secure tuning screws and parts which could throw the tuning off if they got moved, turned, etc. during shipping. Also lets me know if someone has tampered with the tuning on a duplexer or filter after it left my lab in working order.

Using it on my Jeep bumper bolts after torquing them to make monitor if they are getting loosen by time same as other bolts on the jeep will be doing another review if they last long or not but so far excellent product

I use this to keep tabs on my suspension components on the truck. Lots of Baja miles can rattle things loose. This stuff allows me to see instantly if things have moved.

10/18/18Was going to use this in a customer's engine to mark all of the bolts that were torqued. Because of oil residue it did not stick and each one flaked off in one solid chunk. Luckily I had left it over a long weekend and found this. I removed all of them and no harm done. As an aside, I put it on something with zero oil and it's incredible. Inside an engine? I don't trust it. If I try it again, I'll update this review.

Found tube was entirely clogged when I first opened it. After cutting opening and using a pick to release the crust, found it was super runny. Not easy to apply. Don’t recommend. Plenty of other, better products available

We previously used Torque Seal, but the owner retired and sold the product line to Dykem. They changed the packaging and it is no longer user friendly. The TSI Supercool is a quality replacement for the Torque Seal inspection lacquer.

It'll do the job, but over priced

Nice, brite, color. Thick paint so no drip, accurate painting on my bolts. I use it as a visual nut and bolt torque check.