This article mainly conducts research on the odor and VOCs characteristics of weld seam sealant.The research results show that under the same baking process,there is a significant difference in the odor and VOCs results of weld seam sealants from different manufacturers.The main reason for this difference is related to the solvent of the weld sealant.The same sealant curing process is different,its odor and VOCs results will also differ,the TVOC,BTEX and odor of the same weld seam sealant will improve with higher baking temperatures,However,with the increase of curing temperature,the aldehydes and ketones results will increase;With the same curing process,we also studied the effect of storage time on the odor and VOCs of the weld seam sealant.Found that the longer the storage time,the better the odor and VOC performance.
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