Unsaturated resin quality problems have always been one of the more concerned issues in the FRP industry. Although unsaturated resins are widely used and have many advantages, the shortcomings of resins also cause headaches. Unsaturated resins need to be cured and molded, and are chemical products.
As we all know, chemical products generally have a short shelf life, ordinary resins generally have a shelf life of 3-6 months, and pre-promoting resins have a shelf life of 1 month. And the temperature must be 20-25 degrees Celsius. If the storage time is too long, the unsaturated resin will be semi-jelly, and even more, the resin has completely solidified into a solid state in the iron drum. Therefore, manufacturers using unsaturated resins should use them reasonably to avoid problems with resin products.
1. The storage time of the resin is too long; many manufacturers currently use a small amount of resin, one ton of resin per month, but in order to save transportation costs, take 4-5 tons of goods at a time. The customer thinks that it needs to be used anyway. A lot of freight has been saved, but the actual storage time of some resins has caused the resin to solidify in the iron drum in advance. Fortunately, the freight saved can hardly be compared to the loss of one barrel of resin.
2. Environmental problems of resin storage; storage of unsaturated resins, manufacturers generally inform customers when selling resins to customers, should pay attention to the use of unsaturated resins, the whole barrel of resin that cannot be used up at a time is covered by the lid to avoid resin The styrene component volatilizes, which affects the deterioration of the resin; storing the resin in a cool place, avoiding direct sunlight, to prevent the temperature from shortening the shelf life and causing the resin to deteriorate due to excessive temperature in summer.
3. Details neglected in the use of resin; general use of resin, advanced first