What is the best automotive/aircraft style degreaser? I have been cleaning the bellies of our planes which are caked in grease/oil and it seems like the method/cleaning I'm using is just not cutting it. Its taking me between 3-5 hours to clean the belly and underside of the wings per aircraft! To me that just seems way too long. Now granted I'm making them spotless, but i still think it should only take me 2-3 hours max per plane.
I'm using Grease Lightning, a scrub brush and a sponge with a scrub cloth on one side. I'm spraying the bellies down first with warm water, letting it drip off. Then I'm spraying the entire belly with the grease lightnight. Then i get on a crawler and get underneath it and start scrubbing with the brushes. it doesn't take long for them to get saturated with grease and instead of taking the grease off, they just spread it. Once i have the grease down to a pretty thin layer, i then use the sponge's scrub side to get the final bit off and then the sponge to get any residue off. Between all that is multiple reapplying of grease lightning to try and break down the grease.
Any ideas on what else there is to use? I'm hoping i Can find something that can just get right through the grease and lift it up so that a simple scrubbing can get it off.
I'm half tempted to just use a scrapper and start scraping it off as it would be a lot quicker, but I'm worried about scratching the paint. But then again, they have let them go like this for so long, what will a little paint hurt lol.