Thanks Mike, I now know what it is - we have a similar product here in the UK, probably the same stuff under a slightly different name.
I agree, on a model it will be too 'heavy', like any 'household' varnish or paint, and will obscure detail and, to an extent, diffuse the appearance of the paint. OK, it dries crystal clear - but it's 'thicker', designed for larger surfaces, where diffusion isn't apparent, unlike the relatively small area of a model, especially smaller scale models.
Personally, I'd stick with the proven methods, either using a known modelling brand of clear coat, or Future, which itself is not that far removed from an ordinary, acrylic modelling varnish.
Oh, and in the UK, the Sun is the name of a newspaper - we don't know what the other one is!!