Partial Blockout flexface or awning. Suggestions?

I'm producing graphics for a backlit sign face. It is oversized (90"w x 110"h) and requires a flex face.
The problem is that the customer's branding is a full black background with minimal white, text logo.

Normally for backlit signs with black(or very dark) backgrounds I will use a blockout layer so the whites and colours pop, and so we don't end up getting that washed-out old-graphics look that happens when you backlight a black print.

My plan is to have the flexface front-printed and then apply blockout vinyl, with the logo cut out, to the back side of the flex face to match up with the front print. This will allow us to hide the vinyl seams because it doesn't come in oversized rolls and we can't contour cut more than 54" regardless.

Is there an easier way?

-I thought maybe blockout paint on a white flex face or awning but I can't find any in Canada (Stazon in the US is all I could find).

- Is there a brand that sells eradicable blockout flexface? It would have to be that the eradicated areas become translucent for lighting but the background stays fully opaque.

I welcome any suggestions I may not have considered...

 

Yes, I did check what Cooley has but unfortunately their options are not "blockout" in the inked/coloured areas that have not been eradicated...or at least not that I saw. If no one sells it I should start producing it and sell it myself lol. Probably not much demand for it though if no one makes already.

 

True - that would make sense. We've done lots of eradicable but always in bright colours. I guess I just assumed it would have the same effect as a multiple-pass digitally printed graphic which can never get enough ink to avoid that washed-out greyish tone.

I'll look into the Cooley again. The specs did not mention light transmission at all and I've been burned before by brands who used the "Innocent by omission" claim when their product failed.