A similar idea would be to use a two part adhesive gun with a mixing nozzle.
This company does 2 component cartridges with a range of different ratios.
http://www.5mix.com/index.htm

Gareth


On Fri, Mar 6, 2009 at 16:19, Brad Cantos  wrote:

> Allwyn,
>
> This may be a long shot and I have never tried it, but you might want to
> investigate it.  Dentists use a kind of applicator to make molds when they
> are doing tooth reconstructions.  They use viscous materials are equally
> concerned with avoiding air bubbles and this system is quite effective.
>  These look like syringes except they have a dual supply and a mixing system
> that works when pressure is applied.  The one that I have seen uses equal
> parts of each resin, but they may make some with different ratios.  Here is
> a link to one of these manufacturers:
> http://plaspakinc.com/Medication_Applicators.htm
>
> Brad Cantos
> brad.cantos@holage.com
> http://holage.com
>
>
>
> On Mar 6, 2009, at 4:38 AM, Nano World wrote:
>
>  Dear all,
>>
>> We are trying to spincoat Nusil CF19-2186 elastomer. We are facing
>> problems
>> because the liquid is highly viscous and I think it starts to cure while
>> we
>> are trying to degass it. The mixing of the base and the curing agent also
>> causes a lot of bubbles, so we think it is essential that we degass it
>> before spincoating. We are also trying to coat without degassing with
>> mixed
>> results.
>>
>>
>