Pray for Rollo

[P.I.]

One of the ways to rescue good vinyl (not regrind) is to use Elmer's white glue or other PVA white glue, not aliphatic resin.  Spread it on the exposed vinyl, not the label obviously, in a thin layer, let it dry and peel it off of the vinyl.  It gets EVERYTHING out of the grooves.  Try it on an expendable album first just to make sure the glue formula hasn't changed over the years.  Back in the day I cleaned all of the records we used to take up into the mountains and played on a battery powered record player and got rid of 90% (at least) of the pops and clicks.  Getting the thickness of the glue layer right is the hardest part.  Too thin doesn't work well.

[S Clark]

One of the ways to rescue good vinyl (not regrind) is to use Elmer's white glue or other PVA white glue, not aliphatic resin.  Spread it on the exposed vinyl, not the label obviously, in a thin layer, let it dry and peel it off of the vinyl.  It gets EVERYTHING out of the grooves.  Try it on an expendable album first just to make sure the glue formula hasn't changed over the years.  Back in the day I cleaned all of the records we used to take up into the mountains and played on a battery powered record player and got rid of 90% (at least) of the pops and clicks.  Getting the thickness of the glue layer right is the hardest part.  Too thin doesn't work well.

I think this is a winner.  Many of the records I cleaned for my friend were still in jackets- cemented to the records.  Even so, they were still full of silt. Pre-cleaning, vacuum cleaning, and finally ultrasonic cleaning still got spotty results.  I don't doubt that even using a soft bristle brush with soap may have caused more damage... so I like the glue idea for your more valuable or hard to find vinyl. 
I wonder if thinning the glue a bit would help it to flow into the grooves more completely??

[rollo]

Thanks for the tips Men. Elmers eh !

charles

[Nick B]

Yes, I’ve heard about the Elmers glue method a few years ago. Never got around to trying it. I looked at a few videos on YouTube just now and picked this one to give you an idea how of one way of doing it. Hope you can save some of those, Charles.

https://youtu.be/fB_HqEYxd8I

[rollo]

  Me as well Nick. Our biggest problem is finding Labor to remove the damaged items. Restoration and Construction Companies are busy with labor shortages as well. If I lived near the Texas border would not be an issue.

charles

[rollo]

  PRAYERS WORKED. Thanks Guys.

charles

[P.I.]

  PRAYERS WORKED. Thanks Guys.

charles

They do when we let them! 

Do tell.

[Chazz]

Have hope , stay strong , one day at a time, hang in there,charles

[rollo]

  Well, we are all demolished. Down to bare foundation walls. It appears a new room 13 x 22 x 8 will be had. Not doing entire space rebuild. Going to either Qln Prestige 3 or 1 speakers.
  Open rafter ceiling with wool carpet over masonite and concrete slab. Five dedicated 15A and 20A lines. Two layers 5/8" th. sheetrock over metal studs which will be grounded. Insurance companies coming along as well as unsuspected FEMA money. Thank you for your prayers.

charles

[P.I.]

  Well, we are all demolished. Down to bare foundation walls. It appears a new room 13 x 22 x 8 will be had. Not doing entire space rebuild. Going to either Qln Prestige 3 or 1 speakers.
  Open rafter ceiling with wool carpet over masonite and concrete slab. Five dedicated 15A and 20A lines. Two layers 5/8" th. sheetrock over metal studs which will be grounded. Insurance companies coming along as well as unsuspected FEMA money. Thank you for your prayers.

charles

I ran a room mode calculator on these dimensions.  Keep in mind that modes are typically ~ 5Hz wide.  Here are the results below 150Hz:

1   25.58 Hz   G0#   1-0-0   ax
2   43.28 Hz   F1   0-1-0   ax
3   50.27 Hz   G1   1-1-0   tan
4   51.15 Hz   G1#   2-0-0   ax
5   67.01 Hz   C2   2-1-0   tan
6   70.33 Hz   C2#   0-0-1   ax
7   74.84 Hz   D2   1-0-1   tan
8   76.73 Hz   D2#   3-0-0   ax
9   82.58 Hz   E2   0-1-1   tan
10   86.45 Hz   F2   1-1-1   obl
11   86.56 Hz   F2   0-2-0   ax
12   86.97 Hz   F2   2-0-1   tan
13   88.09 Hz   F2   3-1-0   tan
14   90.26 Hz   F2#   1-2-0   tan
15   97.14 Hz   G2   2-1-1   obl
16   100.55 Hz   G2   2-2-0   tan
17   102.3 Hz   G2#   4-0-0   ax
18   104.09 Hz   G2#   3-0-1   tan
19   111.08 Hz   A2   4-1-0   tan
20   111.53 Hz   A2   0-2-1   tan
21   112.73 Hz   A2   3-1-1   obl
22   114.43 Hz   A2#   1-2-1   obl
23   115.67 Hz   A2#   3-2-0   tan
24   122.7 Hz   B2   2-2-1   obl
25   124.15 Hz   B2   4-0-1   tan
26   127.88 Hz   C3   5-0-0   ax
27   129.85 Hz   C3   0-3-0   ax
28   131.48 Hz   C3   4-1-1   obl
29   132.34 Hz   C3   1-3-0   tan
30   134.01 Hz   C3   4-2-0   tan
31   135 Hz   C3#   5-1-0   tan
32   135.38 Hz   C3#   3-2-1   obl
33   139.56 Hz   C3#   2-3-0   tan
34   140.67 Hz   C3#   0-0-2   ax
35   142.97 Hz   D3   1-0-2   tan
36   145.94 Hz   D3   5-0-1   tan
37   147.17 Hz   D3   0-1-2   tan
38   147.67 Hz   D3   0-3-1   tan
39   149.38 Hz   D3   1-1-2   obl
40   149.68 Hz   D3   2-0-2   tan
41   149.87 Hz   D3   1-3-1   obl
42   150.82 Hz   D3   3-3-0   tan


These dimensions will give you a HUGE mode centered at ~ 87Hz.  Uhm, not to rain on your parade but here is the thunderstorm: this is one of the worst places that you can have an 18dB bump which is about what you will have with those dimensions.

If you go close to golden ratios (18.5 x 13 x here is the distribution:

1   30.41 Hz   B0   1-0-0   ax
2   43.28 Hz   F1   0-1-0   ax
3   52.9 Hz   G1#   1-1-0   tan
4   60.83 Hz   B1   2-0-0   ax
5   70.33 Hz   C2#   0-0-1   ax
6   74.66 Hz   D2   2-1-0   tan
7   76.63 Hz   D2#   1-0-1   tan
8   82.58 Hz   E2   0-1-1   tan
9   86.56 Hz   F2   0-2-0   ax
10   88.01 Hz   F2   1-1-1   obl
11   91.24 Hz   F2#   3-0-0   ax
12   91.75 Hz   F2#   1-2-0   tan
13   92.99 Hz   F2#   2-0-1   tan
14   100.99 Hz   G2#   3-1-0   tan
15   102.57 Hz   G2#   2-1-1   obl
16   105.8 Hz   G2#   2-2-0   tan
17   111.53 Hz   A2   0-2-1   tan
18   115.2 Hz   A2#   3-0-1   tan
19   115.61 Hz   A2#   1-2-1   obl
20   121.66 Hz   B2   4-0-0   ax
21   123.07 Hz   B2   3-1-1   obl
22   125.77 Hz   B2   3-2-0   tan
23   127.04 Hz   B2   2-2-1   obl
24   129.13 Hz   C3   4-1-0   tan
25   129.85 Hz   C3   0-3-0   ax
26   133.36 Hz   C3   1-3-0   tan
27   140.52 Hz   C3#   4-0-1   tan
28   140.67 Hz   C3#   0-0-2   ax
29   143.39 Hz   D3   2-3-0   tan
30   143.92 Hz   D3   1-0-2   tan
31   144.1 Hz   D3   3-2-1   obl
32   147.04 Hz   D3   4-1-1   obl
33   147.17 Hz   D3   0-1-2   tan
34   147.67 Hz   D3   0-3-1   tan
35   149.31 Hz   D3   4-2-0   tan
36   150.28 Hz   D3   1-1-2   obl
37   150.77 Hz   D3   1-3-1   obl

Physics just sometime suck... or in this instance - blow.

[tmazz]

And unfortunately, for most of us, our room dimensions are not something that we can easily change, if at all. 

[P.I.]

And unfortunately, for most of us, our room dimensions are not something that we can easily change, if at all. 

For sure.

I got lucky.  My room is 20'4' x 14'4" x8' :

1   27.68 Hz   A0   1-0-0   ax
2   39.26 Hz   D1#   0-1-0   ax
3   48.04 Hz   G1   1-1-0   tan
4   55.35 Hz   A1   2-0-0   ax
5   67.87 Hz   C2#   2-1-0   tan
6   70.33 Hz   C2#   0-0-1   ax
7   75.58 Hz   D2#   1-0-1   tan
8   78.53 Hz   D2#   0-2-0   ax
9   80.55 Hz   E2   0-1-1   tan
10   83.03 Hz   E2   3-0-0   ax
11   83.26 Hz   E2   1-2-0   tan
12   85.17 Hz   F2   1-1-1   obl
13   89.5 Hz   F2   2-0-1   tan
14   91.85 Hz   F2#   3-1-0   tan
15   96.08 Hz   G2   2-2-0   tan
16   97.74 Hz   G2   2-1-1   obl
17   105.42 Hz   G2#   0-2-1   tan
18   108.81 Hz   A2   3-0-1   tan
19   108.99 Hz   A2   1-2-1   obl
20   110.71 Hz   A2   4-0-0   ax
21   114.28 Hz   A2#   3-2-0   tan
22   115.68 Hz   A2#   3-1-1   obl
23   117.46 Hz   A2#   4-1-0   tan
24   117.79 Hz   A2#   0-3-0   ax
25   119.07 Hz   A2#   2-2-1   obl
26   121 Hz   B2   1-3-0   tan
27   130.15 Hz   C3   2-3-0   tan
28   131.16 Hz   C3   4-0-1   tan
29   134.19 Hz   C3   3-2-1   obl
30   135.73 Hz   C3#   4-2-0   tan
31   136.91 Hz   C3#   4-1-1   obl
32   137.19 Hz   C3#   0-3-1   tan
33   138.38 Hz   C3#   5-0-0   ax
34   139.96 Hz   C3#   1-3-1   obl
35   140.67 Hz   C3#   0-0-2   ax
36   143.36 Hz   D3   1-0-2   tan
37   143.85 Hz   D3   5-1-0   tan
38   144.12 Hz   D3   3-3-0   tan
39   146.04 Hz   D3   0-1-2   tan
40   147.94 Hz   D3   2-3-1   obl
41   148.64 Hz   D3   1-1-2   obl

Two traps at 79Hz and 87Hz and the room is really flat... for a room. Convergent oblique and tangent modes are relatively benign.  It is those axial suckers that just kill a space!

[rpf]

Charles, are you insulating the new walls? A good idea for both energy savings and sound absorption obviously. If they're exterior (basement) walls use foam board, not fiberglass or Rockwool (you want a vapor impermeable material to prevent condensation occurring and mold forming on the concrete walls). If they're interior walls use Rockwool, which is far superior to fiberglass in every way, albeit a little more expensive.

[rollo]

  Thanks Dave and Robert. Very helpful.

charles

[rollo]

  Well, we are all demolished. Down to bare foundation walls. It appears a new room 13 x 22 x 8 will be had. Not doing entire space rebuild. Going to either Qln Prestige 3 or 1 speakers.
  Open rafter ceiling with wool carpet over masonite and concrete slab. Five dedicated 15A and 20A lines. Two layers 5/8" th. sheetrock over metal studs which will be grounded. Insurance companies coming along as well as unsuspected FEMA money. Thank you for your prayers.

charles

  I can do 12x18x8 as well.

charles