Where can I purchase this "stuff" called neutral cure silicone rubber?
Please cite URL of post referred to.
 What country are you in?

Neutral cure silicone rubber is made by a range of manufacturers and some have a range of products. It is readily available in single tube quantities in many countries (at least China, Hong Kong, USA and New Zealand in my experience and essentially certainly it will be available in the large majority of countries worldwide).

There are 2 main types (and quite a few more specialist types that you are less likely to encounter.)


Oxime  cure are cheaper and  release methyl alcohol and oxime compounds which are not suitable for some uses. eg not for use with Polycarbonate plastic. Not ideal for large copper surfaces.
Alkoxy release only Methyl Alcohol and are suitable for most uses. 


If a nutral cure SR ddoes not say what type it is it will be Oxime.

The major silicone rubber suppliers internationally are Dow Corning &amp; Shin Etsu (Japanese) with others such as Du Pont and similar not being disgraced.

Dow Corning sell Oxime "Neutral Plus" in Asia and some other areas but it tends to not be seen in the US. 

Search ebay with
- neutral cure silicone
 for a range of products.Examples

Diagram some only of Dow Cornings offerings.
 Orange = oxime.
 Blue = alkoxy.

You MAY be able to buy DC products online here 



Dow Corning