Looks like "Wiz" is unavailable right now, let me try to address your concerns.
I would not be concerned about sodium hydroxide based strippers and oxalic acid running though the pressure washer hose, ( I do not feel this will harm your hose)** I would however run these products through a downstream injector and not through your pump.
It is wise to flush injector with water after use.
Andy, The hose seems to holds up very well with strong chemicals, but I flush very well because the fittings on the ends of the hose are affected by the chemicals. I wish you could order hose with stainless steel fittings. Let me know if someone has a source.