Smooth-quality RTV Silicone For pad printing

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4  The amount of the curing agent and the chemical reaction with the silicon is as follows: mix 100g silicon and 50g silicone oil sufficiently and evenly, then add the curing agent which is 2%-3% of the total weight of the silicon and the silicone oil, mixing for 2-3 minutes, and then deair to remove the air bubbles . The time of deairring generally does not exceed 10 minutes. If the deairing time is too long,it may cause fast curing of the silicon and impact the quality of silicon. 
    

    If a big pressure contact surface or a soft silicon pad is needed, the mixing proportion between the silicon and the silicone oil can be 100:30-100:50. But please note that the more amount of silicone oil added, the softer the silicon pad, which will reduce times of pad printing, abrasion resistance and solvent resistance. In addition, the times of pad printing silicone rubber will be correspondingly reduced which will cause increased cost and material waste. 

    add 30g silicone oil into 100g silicon with the hardness of the silicon pad being 20A

rtv silicone rubber for pad printing: for plastic toys,craftworks, product printing,all kinds of colours,and curing agent free.