Potting compounds are used to fill an electronic assembly to make it more secure. These compounds help it resist moisture, corrosion and vibration damage.
3M DP270 is an epoxy compound which a very good temperature resistance and working life of 60-70 minutes, becoming tack free in 3 hours, and 100% cured in 48 hours. It is also UL 94HB rated and stable (resists expansion/contraction) once fully cured.
As with all adhesives, as you see me repeat constantly, make sure the substrates are clear of any dirt, oils, films of anything that will get in-between the adhesive and the substance you wish to adhere to.
The "DP" in DP270 refers to Duo-Pack. Since this is a 2 part epoxy adhesive, that becomes activated when the 2 parts are mixed, they need to be kept separate until it is time to use them. Thus, you have 2 tubes that are sold, side by side. (there is a high volume version, with pneumatic applicators, but that is not something most people are going to be using).
These Duo-packs require a 3M™ Scotch-Weld™ EPX™ Plus II Applicator (which comes with the 1:1 Plunger needed) and nozzles. There are 2 types of nozzles available, but the Gold Nozzles are far superior based on ease of application, that the small difference in price is worth it. You do need to use 3M's nozzles, because they are specifically designed to mix the 2 components.
I understand adhesives, anyone that has help on better explaining "potting" please add comments or links and I will try and put together a post to help with that.
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