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Refractive Index matching to PMMA

ccatceimy
in Chemistry

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Hi

I am trying to figure out the right liquid to use that has the following properties:

optically clear/colorless

refractive index of 1.490

viscosity of 5cSt or lower at 25oC

compatible with PMMA and either polyurethane elastomers or silicone elastomers.

 

I have looked at mineral/white oils but can not get to a sufficiently low viscosity and the index value.

 

Thanks

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