spraying varnish

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bourbon

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Hi All, I have some Ronseal interior water based wood varnish. I want to spray this onto some small projects. Any Idea what to thin it with please. I have e-mailed Ronseal, but no reply after week. Thanks all.
 
If you have hard water then fillter it first. the lime can cause problems later
 
Thanks for all of the replies. The reason I posted was that I was thinning acrylic water based paint with water and it was splitting. Someone on another forum suggested IPA and water and it worked without splitting, but I'm unsure weather it will work with varnish
 
Hi All, I have some Ronseal interior water based wood varnish. I want to spray this onto some small projects. Any Idea what to thin it with please. I have e-mailed Ronseal, but no reply after week. Thanks all.

ive sprayed thatRonseal interior water based wood varnish. Ive thinned with water, and just as it comes, worked fine.
 
If you have hard water then fillter it first. the lime can cause problems later
Regular Filtering has zero effect on hard water as it only catches crunchy bits.
The reason I posted was that I was thinning acrylic water based paint with water and it was splitting.
acrylic paint is extremely different from varnish and requires a different tip & needle set together with different gun pressures, so there is no comparison between the 2.

here are a couple of pieces I’ve just finished, they are water based acrylic colour with a water based polyurethane (though the water based varnish is precisely the same)
8746A88A-B8DC-4F47-BBE4-064065B12BF1.jpeg
0DD2F98D-FD5D-43E9-B089-6B0F4ADBC4BF.jpeg
 
Just water is fine though you could add a dash of Floetrol to keep it open longer, which also has a thinning action - water based paints and varnishes can make spraying harder because of significantly faster drying times and takes a bit of practice to get the pressure and consistency just right so you don't get spattering from the varnish / paint drying before it hits the object.

There's also the old trick of a dash of washing up liquid in the water (a few drops at most), which helps break the surface tension of the paint so it flows better - but for a beginner floetrol is safer.
 
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