Whatman... .20 or .45 ?

[rjl296]

.45 will eliminate all (99.99%) bacteria .
unless the can form endospores ie staph, which are about .3 micron if i rememeber correctly
odds of getting spores in there, slim-nil-
is it possible ?
sure it is

that being said, i always used a .2 when i made things

in addition, BA is not for really sterilizing, its to prevent bacteria from multiplying (ie- you inadvertently add some, or dont remove all of it)
but BA + time will kill most bacteria - (doenst help if you want to shoot the gear now though)

 

[anal itch]

.45 will eliminate all (99.99%) bacteria .
unless the can form endospores ie staph, which are about .3 micron if i rememeber correctly
odds of getting spores in there, slim-nil-
is it possible ?
sure it is

that being said, i always used a .2 when i made things

in addition, BA is not for really sterilizing, its to prevent bacteria from multiplying (ie- you inadvertently add some, or dont remove all of it)
but BA + time will kill most bacteria - (doenst help if you want to shoot the gear now though)

Thanks for the info. I just wish it didn't take so damn long to filter through a .20. I like to let whatever I make sit for at least two weeks before using it. So far it seems to be doing the trick as I haven't had any problems to note.

 

[moose11]

mighty vac lol sounds liek a penis pump name

 

[Spartan.]

The filters aren't used to remove bacteria. The filters remove particles, the BA kills bacteria.

 

[rjl296]

The filters aren't used to remove bacteria. The filters remove particles, the BA kills bacteria.

oh ?
so there tonnes of bacteria bigger than .2 micron
jeesus

 

[Nytol2]

I have made many products over the last few years, and only ever used a .45, but I do let it sit for at least 7 days after filtering to allow the BA to 'kill' off any bacteria that has made it into the vial.

I have never had any problems at all.

 

[mrdeeznuts]

.20 will take about 10 minutes of squeezing to fill up a 10ml vial
.45 will take about 45 seconds

the filter is to take out debri

the ba and baking will kill the bacteria

make the gear in a sterile enviroment, fill your vials via the filter, then bake your gear

 

[Demonix]

GPZ site says .20 is for water based and .45 for oil.

 

[justinjones1963]

excellent post and excellent points.

 

[hayabusa976]

hey anal itch,u mentioned race bikes?????u talking street or dirt??