Duct Seal Usage Rating Outdoors or in Vehicles.

The temperature usage range for Duct Seal is 25 to 120 degrees F and it has a tolerance range of -30 to 175 degrees F. This means the Duct Seal should be applied between 25 to 120 degrees F. Duct Seal is used and designed primarily to plug holes around conduit mostly inside buildings but is also used outside on service entries. There is a tendency to dry on the surface when exposed to weather. There is material in these locations that are dry but still maintain a seal after 20 years. As far as use in vehicles, there shouldn’t be a problem unless the vibration causes the material to not adhere to the surface.

Duct Seals Reaction to Gas Vapors and Liquids.

Duct Seal is resistant to gas vapors however, if condensation of gases occurs then it becomes an issue. Liquid gases contacting duct seal can soften the material. Gases themselves are not the problem but liquid formed by condensation over extended periods could be an issue. Duct Seal is not meant to be used outdoors.

Continuity Measurements.

Any multimeter with the ability to test resistance or ohms can measure for continuity. Some meters have an audible buzzer to let you know when you have continuity, while others don’t. You need to keep an eye on the display to watch the reading the tester is giving. Most analog testers you have to watch the screen to see if the needle goes all the way to the right. With the digital meters, some have an audible symbol to let you know if the meter has an audible buzzer or not.
This is the audible continuity buzzer. In most cases, if the reading is under 50 ohms of resistance, the meter will buzz. With other testers, you would just select any of the resistance ranges (Ω) and watch the reading you get on the screen. It should be as close to 0.00 as possible to have the best continuity. Most times you will get something between 0.00 and 0.3 on the display because the meter is picking up resistance in the circuit being tested and in the test leads.
WARNING!!! ALWAYS TEST CONTINUITY ON A CIRCUIT THAT IS SHUT OFF. A live circuit will damage the tester and potentially injure the user.

Duct Seal Information

Duct Sealing Compound is a gray, permanently soft, non-toxic compound
which will adhere to most clean dry surfaces. Duct Sealing Compound
will not adversely affect other plastic materials or corrode metals.
It also has no adverse effect to human skin.

There is a Duct Seal specification sheet located on our website under the resources tab that contains all of the products information. It is also listed in our catalog on page 169.