Prep for underbody sealing?

[gilghana]

Guys, I am a total newb when it comes to paint and so need some advice. I am shortly about to use various Wurth products on the underside of my Troopy as it is a fairly new tropical spec HZJ78 which is really lacking in that area... I have no idea what to do in terms of prep before applying Wurth underbody type stuff. I am thinking: powerwash but after that ???
Cheers in advance,
Gil

 

[gilghana]

Anyone?

 

[sl33py]

I'm a noob too, but looking at doing undercoating on my 60. I was going to use a pressure washer to knock off the biggest chunks then spray with super clean or simple green to degrease. Might need some additional wiping or work, but not sure.

anyway - i will follow this and hopefully someone chimes in w/ tips!

GL!

rob

 

[gilghana]

Rob I was thinking the same - good wash and make sure nothing is greasy/oily and maybe roughening things up a bit with a nylon brush on a power drill...???
Gil