Hydrophobic Silicon (Si) Wafers for Research & Production

We need 6” Si wafers with notch. Single sided polished. Standard Si wafer thickness. No requirements on dopant type or resistivity. Quantity: Quote for 1 wafer and Quote for 6 wafers. We are looking for 6" Teflon coated Si wafers: 

Specs:
Teflon coated 6” Si wafers (preferred with notch).
Single sided polished, with Teflon coating on the polished side.
Standard 6" Si wafer thickness of around 625-650um
No requirements on dopant type or resistivity.

Quantity:
Quote for 1 wafer and Quote for 6 wafers.

I am looking for a quote for 5x polished hydrophobic teflon coated Si Wafers, preferably with the wafers being 6" in diameter though smaller sized wafers would still be adequate depending on what is in stock. I attempted to send this request via your website, but there was an error and it gave me your email to send the request to instead. Further, from any testing that you've done with such wafers, do you know how hot such it can go before the PTFE coating begins to fail or delaminate? For reference, we would be hoping to heat these to around 150 C at maximum. 

I'd be hoping to have the polished mirror-like surface of a Si wafer along with the hydrophobic characteristics and heat resistance of the teflon. We'd be looking for a 6" wafer though we can make use of a smaller wafer if that is too large or is a major price increase, and would appreciate a quote for what 1x would cost and what 5x would cost.

I wanted to make an inquiry if your company makes Silicon wafers with rough surfaces (i.e. unpolished surface or something basically not smooth). I am currently working on a project that requires me to utilize a hydrophobic surface without any external chemical modification (e.g. having a silane monolayer, or coating with carbon black etc.). So I am asking if your company makes wafers with good surface roughness (hydrophobic surface)?