Scalable polymer cold spray repairs cracked composite materials on-site, restoring nearly all of their original load-bearing durability

https://techxplore.com/news/2026-07-polymer-cold-spray-strength-composite.html

"localized melting method can cause structural defects, microstructural fiber degradation, lingering thermal stresses on composite material, overcome accelerating µm-sized thermoplastic/ thermoset powder particles through high-velocity gas stream depositing them directly onto substrate without melting... restores up to 80% lost mechanical properties where shallow impact damage/ up to 40% for deeper structural fractures... lightweight infrastructures: aerospace, automotive, wind turbines"