No, it doesn't work

If you put a cyanotype layer under liquid emulsion then you'll get very disappointing and unrealiable results. Sometimes a nice blue comes out, but still it is on useless pictures. Really really ugly pictures.

If you put a cyanotype over liquid emulsion (i.e. after you printed and dried a normal print) then the cyanotype chemistry will destroy all the blacks in your print.

I've used SE-1 Liquid Emulsion (from Silverprint), Tetenal products for fixing/developing and standard recipe cyanotype chemistry. I don't think it is a matter of brand... Simply, the two chemistries are not compatible. That's my deduction after this experience.

bye