RTV silicon

Hello Guest,

What you are asking is regarded by Manufacturers of such a product, as a carefully guarded commercially sensitive secret.

Be aware that some RTV sealants emit Cyanide and other toxic gases for many weeks after use.

This is known in the sealant industry as "Outgassing", and they would normally not advise many users about this problem, because of the poisonous nature of the uncured product.

Kind Regards....

Hello Sir ,

it is well possible . Whether it is for Electrical insulation or for sealing purposes ?

RTV silicone sealants are also available . you can also use this sealant . RTV rubber silicone Potting if you really intend , it can be done by many .

Where you are located ? length of that Product if Potting is to be done ? have you opted RTV Grade { based on Specifications & Transparent / white / Purple coloured nature } or you opt whatever it can be type ?

Other references , I can provide you - unconditionally . As I'm also linked with such requirements , presently looking for Potting machine to Purchase itself .

Looking for your Response , Please .

Contact "Dow Corning"

Sir ,

that company deals with Manufactured base products of RTV potting / sealant materials . They wouldn't provide customer service for Potting . few others are also available . Guest himself either can work out Or with his declared nationality We can provide ; if it belongs within our collection . yet , one link for that requirement - I prefer to provide such as : http://www.globalspec.com/featuredProducts/detail?emailId=20080814149&ExhibitId=29998&uid=%2D2001975035&frmtrk=alert

All the best .

And the point being?

If "Guest" wants to manufacture a component, and mold their own product in a 2-pack rubber housing, or something by their design, you have 2 options, to either get another company to do the molding for you, or get the base materials from DC, and mix, pour and mold the products yourself.

The last company I was in, we got 2-pack rubber solution, manufactured circuit boards, mounted into a enclosure and poured in the 2-pack rubber into the package leaving only the terminals exposed, that was a custom job for the mining industry.

Have you tried to see if they do provide customer service for potting? I have been to their web site, and its quite informative.

But as with a high percentage of "Guest" enquiries, there is not much information to go off, so a simple answer may not be wanted, also no discussion is offered by the original enquirer, and my answer could have been what they were looking for.

Hello Sir ,

Based on your observation ; when I entered into their site - I could notice this reference which addresses about customised Packaging .

http://www.dowcorning.com/content/services/servicespack/

As I also look for similar requirements , I'll contact them . I'll share their feedback , later .

Moreover , were you earlier working in RTV based commitments Or in that same "DC" company ? - Please .

Is there a procedure or potting machine facility to do with Vacuum chamber ? - In your reference .

We just mixed the 2-pack in the open air.

The quantities we were using was <10 litres at a time.

so, you pour part 1 into container, pour in part 2 and mix with a long stick

decanter the mixture into the enclosures that needed potting.

The mixture dried in room temp.

Was a real bugger if the circuit developed a fault after potting, or the mixture got into the connector housing.

So Sir ,

To strip off the potting for rectification :

Have yourselves used some chemicals , wipes or to peel them with knife ? - Please .

thanks for your interest and time to solve my problem. There is some misunderstanding. My question is about the process to make single component RTV(room temperature vulcanizing) silicon sealant by mixing some ingredients and then pack in plastic cartridge for using with help of caulking gun. this sealant normally used for glass sealing, concrete and other general sealing and bonding purposes.

Then, I guess, you'll need a chemistry department with some Uni grads who love that type of molecular playing stuff ;o)

Sir ,

What earlier described was about Solicone rubber compound with Ots Catalyst . Your present case is with Silicon Sealant . For this , Either Pneumatic or Electric Dispensing Gun is available . On Aluminium Plate , Make a shape for mold for the dimension of your Product . Load Particular grade sealant with required Quqntity . Then , release the sealant by pressing the trigger of gun . Bqsed on Quantity you require - select the cartidge size .

your requirement can be met within your reach .

The idea is that you don't strip it off.

If you have to, you hack into it with a knife, and breathing apparatus when you go to solder the joints

Its also called "Conformal Coating"

Sir ,

I have to opt so as to repair that HV power Supply unit . As circuit with component details are alongwith , this can be carried out .

Conformal coating - means applied primer over the components before potting or of Otherwise ? - Please .

Conformal coating is a sealant similar to floor varnish that seals the board in a varnish/plastic layer, not good stuff to work with if there is a problem after its applied, but this is the problem with most coatings.

Coatings on PCB's (which is where I come from) are not there for repairability, they are there to protect the electronics from moisture, and sometimes to raise the crossover voltage between tracks

Thanks , Sir . As well , One mail was sent from " DOC " company that thay deal only with SIlicone materials , not with Equipments or Machines .

I have enquired about Potting Service to Customers - in various nations . When reply comes , I would convey here .

Slight handling procedure of mine had made it as DOC .It's Dowcorning - Please .

Hello Sirs ,

Again I got reply from " DC " that they provide silicone products & technical services to deal with those products . Alongwith that , They gave one Useful Link as well .That can be well considered for handling Procedures & Precautions - Please . Thanking you .

THe Link from " DC " for reference - Please . http://www.dowcorning.com/content/etronics/etronicsencap/default.asp