OOPS – tacky / sticky filler coat

The filler coat on the deck of the ‘nineteen 97’ was still ‘sticky’ / ‘tacky’ after almost a week.

I’ve narrowed it down to being:

– my resin … too much heat in the shed
– the uv sunbake I used … again the heat and also it seemed ‘thicker’ when I used it
– the filler mix itself being about a month old now
– the wax in styrene % in the mix (i.e. too low)
– my application technique (i.e. brushing it too much)
– temp impact when I applied it (i.e. kicked too early, brushed after starting to kick)
– not mixed enough before using again
– mixed too much before using again … I shook the can, and did not stir it

The UV I used, ended up as a whole bottle, went hard and had to throw it and get more. I used the new UV for the lam coat on this board and it went off OK … looking back, I recall the filler coat on the last board, the forty one two, was a bit sticky / tacky and I used more rough grit paper than previous boards (gumming up) but the bottom seemed to go ok on the second coat I had to do, after fin instal and a couple of almost sand thru spots …

So, I’m now back to a ‘sticky’ / ‘tacky’ board … what to do?

I’ve had it out in the sun again to make sure it has fully kicked, and it is hard (finger nail tap) … it’s just when I put skin on it I feel the ‘tacky’ / ‘sticky’ … If I apply another coat, new mixed batch, later today when the temps drop … and assuming it is ok and not tacky, what will happen if I then sand through that layer of filler? Will I hit the ‘tacky stuff’? Would I be better off trying to sand this current still sticky / tacky layer? Wash it off with acetone and try again?

Nope, the solution was found … and is in action … here’s a hint:


Leave a Reply

Your email address will not be published. Required fields are marked *