If you’ve purchased a jacket or set of riding jeans in the last decade, you likely have D3O or a similar reactive armor (like SAS-TEC) in the joints. It’s the closest thing to magic in the gear world: soft and flexible until it’s hit, at which point it instantly turns into a hard, impact-absorbing shell.
This magic works because D3O is a non-Newtonian, rate-sensitive polymer. It’s a chemical cocktail.
Continue reading “How to Deep-Clean D3O Armor (And Other Reactive Viscous Polymers) Without Ruining the Chemistry”