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Time to compare and contrast some UV putties.
Consistency-wise, Tamiya putty behaves the most like a putty. Creos putty is the most fluid-like, takes the shape of a droplet pretty quickly. Wave putty is more of a "jelly" than a "cream".
Color/transparency: Tamiya putty looks like a barely translucent honey, Creos putty is clear, but not quite crystal clear imo. Wave is a cloudy semi-translucent whitish substance reminescent of a certain bodily fluid.
All 3 putties harden under 395nm UV source (Creos manual also mentions 365mn and 405nm), about 15 sec of exposure under my 10W UV lamp was sufficient (thought I usually let it cure for 60sec).
All 3 are rock-hard upon hardening, not rubbery (like some clear UV resins) or soft.
All 3 sand well, producing fine white powder.
As for applications, Tamiya putty is better suited for filling gaps/holes/bubbles, Wave putty appears to be useful for sculpting as it holds its shape in uncured state the best, Creos putty is clear so might be good for patching/filling clear parts (though that will depend on its refraction index, so test first) and simulating water or glass. Creos putty can also be colored with Mr Color Aqueous (or any other water based acrylic, I imagine) to make colored clear parts or something.
Price-wise, all 3 cost about the same, but Tamiya tube is 34g, Wave is 15g and Creos is only 10g (so unless its refraction index matches clear styrene's exactly it probably isn't worth getting, clear UV resin off Aliexpress is way cheaper).
