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Cleaning advice.

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16 years 10 months ago #57648 by phoenix
Replied by phoenix on topic Re: Cleaning advice.
If anyone needs good Isopropyl alcohol (or propan-2-ol). My sister supplies all the hospitals with 2.5 litre bottles. Which should keep you going for years. I got mine on discount for £6 :lol:

Kieran
16" ODK (incoming), Mesu Mount 200, APM TMB 80mm, SXV H16, SXV H9
J16 An Carraig Observatory
ancarraigobservatory.co.uk/

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16 years 10 months ago #57682 by Dread
Replied by Dread on topic Re: Cleaning advice.

If anyone needs good Isopropyl alcohol (or propan-2-ol). My sister supplies all the hospitals with 2.5 litre bottles.


I don't need the Isopropyl alcohol but does she have any Poitin? It goes without saying it's for medicinal purposes only 8-) .

Down with vwls.

Declan
Carl Zeiss Jena 10x50, Bresser Messier R102

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  • carlobeirnes
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  • IFAS Sponsor & Astronomer of the Year 2013
  • IFAS Sponsor & Astronomer of the Year 2013
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16 years 10 months ago #57684 by carlobeirnes
Replied by carlobeirnes on topic Re: Cleaning advice.

If anyone needs good Isopropyl alcohol (or propan-2-ol). My sister supplies all the hospitals with 2.5 litre bottles.


It goes without saying it's for medicinal purposes only 8-) .

:lol: :lol: :lol:

Carl O’Beirnes,
Scopes and Space Ltd,
Unit A8 Airside Enterprise Centre,
Swords, Co Dublin,
Ireland.
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  • carlobeirnes
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16 years 10 months ago #57685 by carlobeirnes
Replied by carlobeirnes on topic Re: Cleaning advice.

If anyone needs good Isopropyl alcohol (or propan-2-ol). My sister supplies all the hospitals with 2.5 litre bottles.


I don't need the Isopropyl alcohol but does she have any Poitin? It goes without saying it's for medicinal purposes only 8-) .


:lol: :lol: :lol:

Carl O’Beirnes,
Scopes and Space Ltd,
Unit A8 Airside Enterprise Centre,
Swords, Co Dublin,
Ireland.
www.scopesandspace.ie/
www.facebook.com/scopesandspace
twitter.com/ScopesandSpace
www.youtube.com/user/ScopesandSpace

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16 years 10 months ago #57731 by Seanie_Morris
Replied by Seanie_Morris on topic Re: Cleaning advice.
I'll echo the surgical isopropyl alcohol bit.

A recommended tool for gently wiping dust off a mirror is a camel hair brush. Camel hair is very fine, and light, and when you're typical handheld squeezy air blower won't get rid of dust, the brush should be next.

I heard that (Fairy) washing-up liquid is not entirely recommended due to the chemicals involved. I myself have used biological washing powder in hot water to completely dissolve the powder (better than non-bio), and then when cooled down to luke-warm, gently lay the mirror into the water. After about a 10 minute soak, remove, place on a towel (silver side up, of course) propped at an angle to allow the water to drip off, and then wipe gently with the surgical cotton wool to remove the remaining droplets/dry it off (radially, not in circles).

Truth be told, the less you have to clean the mirror the better, and the above soaking technique should not be needed at least once in about 6 years for relatively active mirrors.

Seanie.

Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.

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16 years 10 months ago #57757 by woodwizard
Replied by woodwizard on topic Re: Cleaning advice.
Make sure you use 92% Isopropyl alcohol and distilled water. I also filter everything thru a fiber coffee filter. I have UHTC coatings and have never seen any ill affects from cleaning.
I get damaged cases of 1 gal bottles of distilled water and 92% Isopropyl alchol from work.
I make up a batch and pour into a clean spray bottle. Spray on and use surgical cotton balls and Kleenex brand tissues, make sure pure, no additives to tissues.

Tom
Backyard Roll off roof Observatory
Ash Observatory
Meade LX200GPS 14"er
Losmandy G11/Gemini modified
Meade AR-6
Orion ED 80, 2 - 102 ED and XT-10
Canon 350D Hutech modified

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