Tips that may be of help.
First I cleaned any part I was going to seal with maroon scotchbrite and clean water blown off with compressed air. Get yourself multiple layers of clean vinyl gloves on and later peal the outside layers off as necessary.
If you do not have where the sealant is going, very clean and dry your long term results may suffer.
Put down some of the nice blue masking tape on the tank skins wherever you do not want pro-seal. Do this only on the inside of the skins and keep it at least 3/4" from any of the rib structures.
Seal the ribs and build your desirable fillets, clean excess off with the wooden tongue depressors you got in bulk from the craft store.
Before the sealant starts to get hard peal out the masking tape panels.
I did my tanks in two stages. and only one tank at a time.
I did only one stage each day. (I may be slow but at least I'm sloppy)
I waited a day or two before I sealed the baffle, that way I could look in at the 90% cured tank skin and rib sealant areas and note where I might need touch-up when I did the baffle portion.
Non of these tips are meant to take place of Van's instructions, they are just suggestions that worked well for me.
I hope this helps.
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