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  Topic Review (Newest First)
07-31-11 06:56 PM
Harpmaker
Re: Cream&Sugar™ or Black Widow™?

Quote:
tobyjh wrote: View Post
I guess its not a hotspot. More of a strip that has too much AAA-F. I'll try and get a picture of it tonight.
07-31-11 05:28 PM
tobyjh
Re: Cream&Sugar™ or Black Widow™?

I guess its not a hotspot. More of a strip that has too much AAA-F. I'll try and get a picture of it tonight.
07-31-11 05:24 PM
Harpmaker
Re: Cream&Sugar™ or Black Widow™?

Quote:
tobyjh wrote: View Post
The screen looks really good except for a small hotspot. How long does a mix last? There is still some paint left over, but I'm worried if I paint over that small spot that it will be bad. It's been a few weeks.

Otherwise the screen looks incredible.
If you mixed the BW™ correctly (4 parts base paint to 1 part AAA-F) then I can't see how it could be hot spotting (an over-bright area of the screen that moves as you change your viewing angle). Could you post a photo of this occurring? Or do you mean you have an area of the screen that has too much sparkle? If you are having a few small areas where the aluminum flakes are providing too much reflection you could simply touch them up with an artists brush dipped in your remaining BW™.

After two weeks your screen should be pretty well stabilized and I wouldn't expect any visible changes to take place.

BW™ will keep just like regular latex house paint. It should be good for at least several years if kept in a sealed container stored in a dark place. Like regular latex paint, DON'T let it freeze.
07-31-11 08:16 AM
tobyjh
Re: Cream&Sugar™ or Black Widow™?

The screen looks really good except for a small hotspot. How long does a mix last? There is still some paint left over, but I'm worried if I paint over that small spot that it will be bad. It's been a few weeks.

Otherwise the screen looks incredible.
07-14-11 09:07 AM
Harpmaker
Re: Cream&Sugar™ or Black Widow™?

Quote:
tobyjh wrote: View Post
I got everything done. Mix went well. Looks a tad darker than I thought it would, but it wasnt dry yet. If for some reason there was a small part that had more metal in it, what is the best way to smooth it out? We painted yesterday, so I'm hoping the paint would still be good if we tried to sand down the spot a little and re-apply.

What do you think?
It's very important for the base paint and the aluminum paint to be thoroughly mixed to provide an even distribution of aluminum in the mix. If you have an area where there appears to be too much metal flake then simply apply more mix to that area AFTER the coat of paint in question has dried. Our screen mixes have minimal transparency so the last coat to go on covers the previous coat. This is why 2 coats are all that are usually needed to make a screen.

You shouldn't have to sand the previous coat unless you have runs or sags that need to be flattened out. It you do have to sand an area of the screen wait at least 72 hours to do so. The paint not only has to be dry, but also hardened. If you sand a freshly painted area too soon you will get "pilling" where the paint that comes off will tend to stick between the grains of grit in the sand paper or sanding block and roll together forming little pill shaped balls. If this happens the sanding material is more or less tearing little bits of paint off the wall rather than shaving it off; this produces an uneven surface in the sanded paint and also uses up a lot more sanding material than if the paint has hardened and comes off as a powder.
07-14-11 08:33 AM
tobyjh
Re: Cream&Sugar™ or Black Widow™?

I got everything done. Mix went well. Looks a tad darker than I thought it would, but it wasnt dry yet. If for some reason there was a small part that had more metal in it, what is the best way to smooth it out? We painted yesterday, so I'm hoping the paint would still be good if we tried to sand down the spot a little and re-apply.

What do you think?
07-02-11 05:49 PM
Harpmaker
Re: Cream&Sugar™ or Black Widow™?

Quote:
tobyjh wrote: View Post
Is Kilz Premium the best to get? Or is there something cheaper? Is it important?
I personally like to use Kilz Premium since it covers and seals better (that's why it is a little bit more expensive). Many people have used the less expensive Kilz 2 with no problems as long as you have no stains or dark colors to cover over. There are even cheaper "latex PVA" primers meant for use on drywall that I've seen for less than $7 a gallon. I have used the PVA primer on tempered hardboard for painting 2'x4' test screens and it seems to work well, but I can't give it a general recommendation for all surfaces for general use since I don't really know the difference between it and other latex primers. To be safe I would use Kilz 2 to save $$$.
07-02-11 02:55 PM
tobyjh
Re: Cream&Sugar™ or Black Widow™?

Is Kilz Premium the best to get? Or is there something cheaper? Is it important?
07-01-11 11:27 PM
Harpmaker
Re: Cream&Sugar™ or Black Widow™?

Quote:
tobyjh wrote: View Post
LOL @ Maurice's bad information. I'm glad I continued to search and found you and harpmaker. Quality
I'm glad you did too, I really have to wince when I see people get sucked into the hype and salesmanship of the mudd mixes like RS-MaxxMudd and Silver Fire (mudd is their name for them not mine) with absolutely no proof of performance other than a few screen photos which don't mean a thing (you can't tell if a screen is dark, light or D65 neutral from a photo if the camera is set on auto). I could say a lot more, but we really do try not to bash other forums or mix developers here - bad screen mixes are another story and it doesn't make any difference if they are DIY or commercial - they all get the same objective testing from us.

Quote:
So hopefully this will be the last post before I attempt the mix. Correct me where I'm wrong (as usual hah)

Tape off area
Sand all uneven areas and create a good surface (or buy plaster board or something smooth to hang)
2 layers of Kilzone Primer
2 layers of BW

BW Mix:
HD: 1.5 quarts of Behr #1850 with PPG-Bermuda Beige 427-2 Tint, with the new formulae
C - 0, 12
F - 0, 8
L - 0, 52

Lowes: 1.5 quarts of Valspar Ultra Premium Interior Flat Enamel Finish with PPG-Bermuda Beige 427-2 Tint

12oz of AAA-F

Mix thoroughly until looking uniform

Successs
Sounds good! BTW, the tint formula for mech's gallon of BB is shown in the second photo of the BW™ thread. The store can easily convert that into the formula for quarts.

Be sure to use a 1/4" nap, or shorter, roller cover to minimize texture in your screen surface.

Quote:
This thread says for 100 square feet of coverage I can use 1 quart and 8oz of AAA-F. I thought I was under the 100sq ft for 3 coats on a 100" screen. Did I calculate wrong? I dont want to have way too much paint if possible. Or is it a 'better safe than sorry' measure to get a tad bit more?
Most interior latex house paints list their coverage as being anywhere between 250 and 400 sq.ft. per gallon which breaks down to 62.5 to 100 sq.ft. per quart, but I think this is for a single coat so that makes it 31.25 to 50 sq.ft. per quart for 2 coats. You might squeak by with using 1 quart of BB base and 8 oz. of AAA-F, but I tend to err on the side of plenty. The good news is that if you want to try only making a single 40 oz. BW™ batch and run out of paint you can always mix up another batch. They are easy to make and there is nothing to measure.
07-01-11 07:00 PM
tobyjh
Re: Cream&Sugar™ or Black Widow™?

LOL @ Maurice's bad information. I'm glad I continued to search and found you and harpmaker. Quality

So hopefully this will be the last post before I attempt the mix. Correct me where I'm wrong (as usual hah)

Tape off area
Sand all uneven areas and create a good surface (or buy plaster board or something smooth to hang)
2 layers of Kilzone Primer
2 layers of BW

BW Mix:
HD: 1.5 quarts of Behr #1850 with PPG-Bermuda Beige 427-2 Tint, with the new formulae
C - 0, 12
F - 0, 8
L - 0, 52

Lowes: 1.5 quarts of Valspar Ultra Premium Interior Flat Enamel Finish with PPG-Bermuda Beige 427-2 Tint

12oz of AAA-F

Mix thoroughly until looking uniform

Successs


This thread says for 100 square feet of coverage I can use 1 quart and 8oz of AAA-F. I thought I was under the 100sq ft for 3 coats on a 100" screen. Did I calculate wrong? I dont want to have way too much paint if possible. Or is it a 'better safe than sorry' measure to get a tad bit more?
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