E7, E8 and E9 high-modulus glass fiber families

Jushi identifies E7, E8 and E9 as proprietary high-modulus glass formulations and part of its high-performance glass fiber portfolio. The report places these products in its discussion of wind-energy materials and describes additional development directions including boron-free and fluorine-free glass, lower-density materials and lighter-coloured products. Management presents this range as a competitive strength. The cited disclosure provides product-family positioning, rather than numerical modulus values, model-by-model specifications or a verified ranking against competing products.

The next generation of E9 was upgraded for industrial production and application. Management described the E7, E8 and E9 range as serving demand for larger and lighter wind blades. It also discussed glass fiber for CFRT thermoplastic prepreg tape and development of high-modulus yarn for wind-blade spar pultrusion, among other new products. These are product and development disclosures; no grade-by-grade sales or independent comparative performance test is given in this passage.

E9 ultra-high-modulus glass fiber reached tank-furnace mass production in 2021. The company reported modulus above 100 GPa and described E7, E8 and new electronic-yarn formulations as operating efficiently and stably, with customer certification and promotion. The numerical modulus is a company disclosure, not an independently reproduced test result. This production-stage milestone follows the laboratory-stage confirmation for E9 in the 2018 filing.

E7 was upgraded with higher tensile modulus and lower batch-material cost, according to management. E8 high-modulus glass successfully reached tank-furnace production. The company reported development of nine new products spanning high-performance wind-blade yarn, high-pressure pipe yarn, polypropylene chopped strands, SMC yarn, ultra-high-voltage insulator yarn, thermoplastic reinforcement and 1080 thin fabric. These are disclosed development and manufacturing milestones; the report does not allocate sales among the nine products.

Management reported increasing market acceptance of the E8 formulation and completion of laboratory-stage formulation confirmation for high-modulus E9. E9 was therefore still described at a laboratory milestone in this filing. The research discussion says E8 had been applied to several higher-end products. It does not support attributing later E9 furnace-scale mass production to 2018 or assigning a numerical sales share to either formulation.

The company reports introduction of E8 high-modulus glass fiber for high-end composites and larger wind-turbine blades. Management claims higher modulus and better fatigue performance than E6 and E7 while retaining electrical insulation. It also describes progress in pipe yarn and highly wettable LFT yarn, and successful development of electronic-fabric treatment agents and electronic-yarn sizing. Product introductions and process-chemical development are distinct; the passage does not quantify E8 sales or supply a complete numerical specification.

The company developed a fourth-generation high-modulus, high-strength E7 formulation and worked on E6S in response to wind-energy demand. It also reports research on sizing formulations, unsaturated polyester resin and replacement of basic raw materials. These passages describe different development activities and intended performance-and-cost improvements. They do not establish that every new formulation had replaced its predecessor or achieved a stated volume of sales by year-end.

The E7 formulation entered batch production in 2014 and began supplying domestic and overseas customers. The report links it to large wind-turbine blades, high-pressure vessels and high-performance pultruded profiles, with claimed improvements in modulus, strength and softening temperature. The batch-production and supply stage is a reported commercial milestone. The cited passage does not supply grade-specific numerical performance values or establish that every application generated revenue.