The product that is normally used for spin coating is MY-133-MC. The moisture-cured is preferred since it does not require inert curing and it is also the one with the best adhesion to glass and silicon wafers. Below is the spin curve for undiluted MY-133-MC:
Fig. 1 Spin curve of undiluted MY-133 MC polymer. Measured with 30 seconds spinning time and glass (BK7) substrate.