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Parylene coatings

thread332-130189

Parylene coatings

Parylene coatings

(OP)
I am looking to inhibit the water absorbtion properties of a silicone moulding.  Can anybody advise if Parylene is the right material for this.  Any other suggestions

RE: Parylene coatings

Back in 2002, Medical Device & Diagnostic Industry magazine had an article that explored various sterilization techniques on Parylene.  One of the tests studied moisture vapor transmission (also called permeability) during steam sterilization.  

They found a 43% change (I'm not sure, but I think they mean change in volume) with Parylene-N and a 5% change (deemed statistically insignificant) with Parylene-C.  However they found a 17% change in tensile strength with Parylene-C and none with Parylene-N.

I admit this isn't a clear-cut answer for you, but hopefully it'll help.

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