Edouard Bastarache Inc. on fri 21 oct 05
Bleach
=20
=20
Bleach is not an adequate biocide because if one uses bleach as a =
preventive biocid in the conservation of a ceramic product containing =
organic matter, its short duration effect will not be able to =
effectively protect this product over time.=20
=20
Bleach can be used as a disinfecting material for cleaning, with a =
temporary and effective action, containers and other equipment. But, it =
is not not compatible with ceramic products for ensuring their =
conservation,=20
i.e:=20
- its high pH, which deflocculates clays at the beginning of its =
introduction into a liquid glaze, decreases thereafter producing the =
opposite effect (flocculation), which can be disastrous for the =
ceramicist (worse than bacteria), if he has set the viscosity of his =
product right after having introduced bleach.=20
- Or the effect of the bleach pH is straightforwardly incompatible with =
the product because it causes too great modifications of its properties
=20
Conclusion :
Bleach is an excellent disinfectant, but its high pH and its short =
duration effect make it a temporary cleaning material not very =
compatible, as a stable protective biocide, with ceramic products =20
=20
"Ils sont fous ces quebecois"
"They are insane these quebekers"
"Est=E1n locos estos quebequeses"
Edouard Bastarache
Irreductible Quebecois
Indomitable Quebeker
Sorel-Tracy
Quebec
edouardb@sorel-tracy.qc.ca
www.sorel-tracy.qc.ca/~edouardb/Welcome.html
http://www.flickr.com/photos/potier/
http://perso.wanadoo.fr/smart2000/index.htm
http://www.digitalfire.com/education/toxicity/
claybair on sat 22 oct 05
So Edouard,
When you say bleach is a temporary cleaning material how much time do you
mean?
Gayle Bair
Bainbridge Island, WA
Tucson, AZ
http://claybair.com
-----Original Message-----
From: Edouard
Bastarache Inc.
Bleach
Bleach is not an adequate biocide because if one uses bleach as a
preventive biocid in the conservation of a ceramic product containing
organic matter, its short duration effect will not be able to effectively
protect this product over time.
Bleach can be used as a disinfecting material for cleaning, with a
temporary and effective action, containers and other equipment. But, it is
not not compatible with ceramic products for ensuring their conservation,
snip>
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