Digital BW, The Print

>...I'm curious if you have direct experience w/any of the
>ClearStar (ClearJet - solvent or ClearShield - water) or DCP Systems
>coatings.

I've had no direct experience with those products.  ClearStar is near the
top of my list of coatings I'd like to learn about.  Livick has done some
fade testing with coatings, and, I believe, ClearStar did well.  However,
this might just be a measure of much UV blocking agent was put into the mix.
Sometimes this material yellows.  

We really need "good accelerated aging" tests (although that may be an
oxymoron) for these materials.  Better yet, actual long term experience
would be nice.  I can tell if there is going to be quick light yellowing,
but the long term testing is not so easy, quick or cheap.  At least Wilhelm
is taking a shot at it.  

Paul
www.PaulRoark.com 

____________________________________
> 
> I,m going to try the little Preval sprayer with some beta water-borne
> coating the is being shipped to me.  I'll let people know what I think 
> of
> it.  
> 
> I would never do enough of the spraying to justify an expensive HVLP
> sprayer.  That is really for house or furniture painters and service 
> bureaus
> that do a lot of volume.
> 
> One problem with water-borne sprays has been their propensity to clog 
> the
> nozzles.  I've suggested to the company the is sending the beta that 
> they
> find a solvent that would be appropriate to clean the nozzles and 
> sprayers.
> 
> There are lots of water-borne coatings, but I'm not sure any have 
> Wilhelm or
> other tests that convince me the products are good for the long haul.  
> Many
> coatings yellow, crack, or otherwise deteriorate.  As I've noted
before,
> there are reasons I switched to the solvent based versions.  
> 
> Paul
> www.PaulRoark.com 
> 

Dave G.
Artist in residence at <http://frame38.com>



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