varnishing broken colour

[chrismac]

I am having trouble applying varnish to broken colour work.
i have used polyvine glaze & tints as usual- all acrylic. when i try to put the dead flat varnish on, it is taking the colour off!
never had this problem before. Any ideas??

[mikethebrush]

the varnish is reactivating the acrylics

I have always sealed the acrylics in with oil glaze, the downside being the slight yellow tone and yellowing in low light areas

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which varnish are you using

[chrismac]

polyvine acrylic varnish - dead flat finish. it,s never happenrd before.

[mikethebrush]

I dont know the answer as I have always bound in any acrylic /waterbased effect with oil, its old school but it was the way I was taught

with acrylics the base needs to go off thoroughly before overcoating

[chrismac]

thanks. i have left it a week before varnishing - do you think it needs more?

[mikethebrush]

I would leve it longer this time of year, the humidity is a killer on acrylics curing

[chrismac]

will do, thanks mate

[Fingers]

Not ordinary varnish though...white oil varnish..it doesnt yellow as much.