On Thu, 30 Nov 2006 11:14:19 GMT, "visionset"
wrote:

I'm sure I've seen mention of this technique in the archives, but can't find
it now.
Idea being with my very uneven gaps on softwood casement openers, to:

1/ Open window
2/ Cover opener contact points in suitable release agent (Cling film,
silcone or PTFE spray?)
3/ Seal on to frame in the proper position of a typical draught excluder
with low mod silicone.
4/ Close window to vent position
5/ Time passes...
6/ Open and trim with knife as necessary.
7/ Have lower bills and more comfort.

Anyone like to add anything to help task satisfaction, esp concerning
release agent.

You have the technique about right, it is common sense.

The release agent I used was candle wax. Just rub a candle on the bits
where non-sticking contact was required.

In the original thread you recall, many agents were recommended as you
remembered.

Ther comments were the use of masking tape to cover bits where you
didn't want the sealant to wander to.