Using Removall 620 on antifouling ?

[Boo2]

Hi,

I want to use Removall 620 (because I already have it) to take off the accumulation of A/F from my UFO 34's hull and I wondered if anyohe here has used it ? The data sheet here https://www.smlmarinepaints.co.uk/files/library/files/DATA_SHEETS/Removall_620_ data.pdf says :

Airless sprayers are recommended ... equip the sprayer with a tip size of .019" or larger

I have found a cheap airless sprayer at Machine Mart in their item CAS45 here : http://www.machinemart.co.uk/shop/product/details/cas45-electric-airless-spray-gun has anyone used anything like this and have any comments on its suitability ? The nozzle size at .8mm (0.031") is in the ballpark...

So what's the drill with this A/F removing gunk ? Presumeably I need to tape up the bootline etc before starting, but do I need to swathe the whole surrounding area with poly sheet too ? Does it need to be scraped off or can I get away with pressure washing ? I will wear safety goggles, washing up gloves and a disposable boiler suit, is this enough or is the stuff so deadly I need to do more ?

Any advice gratefully received...

Boo2

 

[JumbleDuck]

So what's the drill with this A/F removing gunk ? Presumeably I need to tape up the bootline etc before starting, but do I need to swathe the whole surrounding area with poly sheet too ? Does it need to be scraped off or can I get away with pressure washing ? I will wear safety goggles, washing up gloves and a disposable boiler suit, is this enough or is the stuff so deadly I need to do more ?

I've used Removall for lots of jobs and as soon as the stuff I ordered today arrives I shall be using it to strip the underneath of my Hunter (see "Osmosis?" thread).

Assuming that it's the same formulation as the last batch I bought, it's a thick gel. I wouldn't bother spraying it on, or want to do so: slobber it on with a wallpaper paste brush. And leave it. Leave it for at least a day, maybe two. It has to stay damp, so do it when the weather's not good.

When it's been on a day or two, the paint will look almost completely unchanged. Take a scraper too it, though, and you'll find that it has turned into a paste which can easily be removed. I wouldn't even think about pressure washing it off. The stripper itself is completely harmless (non-caustic, non-toxic, biodegradable) but the stuff you're taking off most certainly isn't.

My rather smaller boat is indoors, which makes it easier. I shall cover up the trailer with plastic sheeting when I apply the stripper, collect the scrapings on that and dispose of it.

Once again: wait.