APTES and HMDS won't buy you anything for bonding FEP or PTFE to
glass. Don't worry about the glass surface much. To bond FEP to glass, you
first need to rip off the flourine from the surface of the FEP. Sodium
Naphthalene does that very well. You'll use warm Sodium Naphthalene and dip
the FEP you want to bond in that. The FEP will turn brownish, and it'll
then be bondable by epoxy, etc. Any surface that doesn't contact the Sodium
Naphthalene will still be hydrophobic. Sodium Naphthalene is explosive if
it contacts fluorocarbon oil, so make sure none of that is around (which it
would probably only be if you're doing this for a microfluidic device).


On Wed, Sep 18, 2013 at 9:32 AM, Bill Moffat
wrote:

> Hi,there are numerous silanes that can act as a bonding agent for Polymers
> to glass.  The most common one is Amino Propyl Tri Ethoxy Silane, APTES.
>  It has a different vapor pressure to HMDS the most common bonding silane
> for photoresist.  A common process is APTES vapor, Polymer coating then
> bake up to 450 degrees C with no problems.  Bill Moffat
>
> -----Original Message-----
> From: mems-talk-bounces+bmoffat=yieldengineering.com@memsnet.org [mailto:
> mems-talk-bounces+bmoffat=yieldengineering.com@memsnet.org] On Behalf Of
> Fahd Ali
> Sent: Wednesday, September 18, 2013 2:08 AM
> To: mems-talk@memsnet.org
> Subject: [mems-talk] adhesion agents
>
> Hi,
> I am searching for a silane coupling agent for the bonding of glass and
> polymer (FEP films) . For bonding purposes I have to go up to 260°C, are
> there coupling agents or adhesives available which can stand this
> temperature.
>
> kind regards,
> -----------------------------------------------
> Fahd Ali
>
>
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