Any pad printing head or the mucilage glue oil, no oil, no oil is in operation, if the customer printing patterns, and word Hugh bulky, can put oil, no oil is tiny English letters, or hardness rubber head itself is too big, no steel version of the ink absorption in rubber head, so we think is not oily.If need more detailed operating Dongguang Honglian silicone, we will provide you with the most professional knowledge.