Release date：2025-07-01
The new national standard "Liquid unsaturated polyester resin for fiber reinforced plastics" has been officially implemented. The new standard updates various performance indicators of the resin, unifies testing specifications, and imposes higher requirements on resin product stability and volatile substance control. The standard covers resins for multiple application scenarios including pultrusion, molding, vacuum infusion, and artificial stone, promoting standardized development of the industry and guiding resin manufacturers to continuously optimize their formulation systems, improve product quality, and better meet the diverse material selection needs of downstream composite material manufacturers.
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