Astrophotography forum > ATM, Optics and DIY Forum

Cant afford vantablack?

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specconcheckre:
If you thought vanta black was unobtanably priced then check this out, black 2.0. I have not tried it yet but for the price I'm going to ordr a bottle. https://www.cultureh...st-art-material

plethenofin:
Vantablack is not just unobtainably priced....its just plain unobtainable to the general public.

Teflon Mayorga:
I ordered a bottle yesterday. Came to about $25 USD total. Hasn't shipped yet, and takes 5-8 days, I believe.

It is a thick paint substance. Acrylic. You can brush it on, maybe 2 coats, or dilute it with water and spray it on.

It's probably good for shiny areas in focusers, diagonals, eyepieces... or to paint a real black area across from your focuser in a Newt.

Probably have to dilute it and spray it on to do the tube of a scope. Any likely it would need 2 or 3 coats. I think he said a diluted bottle, 2:1 water to paint, would cover about 1.5 sq. meters, but don't hold me to that.

It dries in 2-3 hours as brushed on and can be recoated then. But to get completely as black and flat as possible takes about 48 hours.

Being an acrylic based substance, it shouldn't be exposed to the elements - IOW not for things left outside. How it will last for use in a scope or accessoried, I don't know.

I have some eyepieces and diagonals that could use a darker finish, so that's what I'll try it on. After painting the areas, it's probably good to leave it open to the air for 48 hours to outgas and cure fully.

If it is as dark as the gent says and lasts like a paint, it is worth a try, I figure.

Aoptimus Berhane:
Hey Joe,

Make sure to let us know how it goes. I'm very interested in using this in my scope and my imaging equipment.

It should help a lot with image contrast issues when taking subs from a very light polluted environment.

prehconbubun:
Cheap flat black spray paint and fine sawdust is just as good, and is probably better at nearer to grazing angles, the most insidious and relevant we have to deal with.

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