Electronics Forum | Fri Jun 23 14:23:20 EDT 2000 | Brian W.
We used to cure RTV3145 in an oven at 180 F for 2-4 hours Hope this helps, Brian
Electronics Forum | Thu Jun 22 09:31:21 EDT 2000 | Rich Ziebell
All, Can anyone point me in the right direction for (sources of info) various ways to quickly cure RTV or atleast speed up the process. Our requirements are to use Dow Corning 3145 hi-temp RTV. I have tried contacting the manufacturer but am losing
Electronics Forum | Thu Jun 22 16:48:17 EDT 2000 | MikeF
Most RTV's depend on atmospheric moisture to cure. You can put them in an oven with a pan of water and that will speed up the cure. I'd suggest about 150 to 180 degree F, time period to depend on the thickness of the RTV. You'll have to do some tests
Electronics Forum | Thu Apr 28 11:14:27 EDT 2005 | bbarr
If you apply the RTV after coating, what happens to bond strength since you are now bonding to the coating and not the board? Will the caps still survive vibration and shock? I specify applying RTV before coating for this reason. Am I correct? I als
Electronics Forum | Thu Apr 21 12:35:15 EDT 2005 | jdumont
Well that doesnt sound very promising. What im going to do is make sure these two boards I just coated (with the RTV already cured) will be used in house only. In the future we will do any conformal coating operations before potting with whatever mat
Electronics Forum | Thu Feb 07 20:59:10 EST 2008 | davef
We bet your customer has freaked-out. Some common RTV out-gas ammonia during cure. Many types of RTV depend on strong acetic acid to work. Also, ammonia plus water in the air produces ammonium hydroxide, an aggressive alkali. We've talked about this
Electronics Forum | Tue Jan 10 22:10:29 EST 2012 | doncattoni
Hello Austin, Sorry for the delayed response. There are different types of cures for conformal coating such as RTV which stands for Room Temperature Vulcanising which means they are cured by the humidity in the air. This type of cure does not need
Electronics Forum | Wed Jan 03 15:11:09 EST 2007 | kennyg
Is it acceptable to apply an acrylic conformal coat, cure and then apply a silicone RTV on top (for staking tall components)? Should there be a concern with the bond between the acrylic and the RTV?
Electronics Forum | Wed Jan 03 21:20:22 EST 2007 | davef
Comments are: * General purpose RTV (RTV-108) releases an acetic acid (vinegar) during cure and corrodes copper, brass and sensitive metals. It is therefore NOT for use in delicate electrical or electronic applications. However, there is an electrica
Electronics Forum | Thu Apr 21 11:43:03 EDT 2005 | davef
We understand the problem of trying to coat over RTV. We have seen the same problem with acrylic and urethane coatings not wanting to stick to RTV. Some acrylics seem to be worse than urethane. Since this is a new product, may be you could pot your
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