protecting an aqua blasted engine.

[Dolomite_]

What do people use to protect an aqua blasted engine? I'm currently using some acf50 which I use on my other bike a vstrom 650 but that's mostly plastic and a painted engine.

I've seen people mention WD40, any penetrating oil and GT85.

What do you use to protect the engine?

[K2-K6]

Yes it's completely bare after blasting, and needs something to avoid furry outcome 

The spray penetrant product are ordinarily arranged around light mineral oil, spray on with alcohol to creep into gaps and often butane (originally) as compressor/propellant.

They may use some kerosene too to facilitate flow into places for their main claims of "release " properties.

My current tested as most effective is "Asda Maintenance spray" particularly effective and at better cost.

GT 85 appears to centre around ptfe for lubricant properties, not necessarily useful for surface protection as wanted here. Smells like a teenage boys bedroom too with considerable pong  think Lynx / Brut area of aroma.

ACF 50 may have Lanolin as part of formula, or similar. Gives good surface "grab" ends up tacky after propellant evaporates, seems repellent water over long period, but maybe problematic on heated cases. Costly too.

[Mikep328]

A few years back, BoShield T9 was popular in the marine world for such protection.  I've been away from marine stuff since 2017 so don't know if it's still popular.

[DomP]

I would spray them with Simoniz VHT paint, the aluminium colour once baked is very resilient and looks good.

[K2-K6]

A few years back, BoShield T9 was popular in the marine world for such protection.  I've been away from marine stuff since 2017 so don't know if it's still popular.

Sweet hayzoos, that stuff is expensive, especially through chandlery stores.

From it's MSDS sheet disclosure though, light oil of petroleum origin 25~50% Naptha (lighter fluid, for helping dispersion) 25%, white mineral oil 25% plus some propellant to get it out of the tin.

Literally, money for old oil 

Most of these product are the same in operation, light oil dispersed by carrier liquid that evaporates eventually and after creeping into cracks etc. To then leave a light oil coating on the treated surface.