Different conductive ink has different storage temperature. Base on the different storage temperature a certain thawing and warming time are needed.
There are three kinds of ink: conductor ink, resistance ink and insulating ink. The ink is commonly composed of noble metal and the glass with low melting point. The ink used for thick film circuits is composed of gold, silver, platinum, palladium, etc., and the common combinations are AgPd, AgPt, Au, etc.

The metal powder is dispersed in an organic resin binder to form the ink and then print the in on the ceramic substrate by the stencil. After high-temperature firing, the organic resin binder is burned off and the pure noble metal left is bonded to the substrate due to the effect of the glass.
(1)The resistance is very low if use silver as a conductive material, so most popular conductive material are the mixture of Silver Palladium and Silver Palladium Platinum  
(2)In order to form a resistance film on the substrate, the resistive materials are mainly metal powder such as silver, gold, palladium, and rhodium.      
(3)The conductors and electrodes of small capacitors are made by overlapping printing and the electrode materials are mainly composed of platinum-gold, palladium-gold and silver.

Next, we can go to Sample making. If you would like to view the last step, click here Make stencil for the trace according to the circuit drawing