Filtering chemicals

[brum_screwdriver]

I have a degreaser, which the manufacturer says can be filtered using a paper coffee filter and re-used a few times. Has anyone successfully used a paper filter for filtering chemicals? I tried a supermarket one (brown paper, so I assume recycled) and it just got clogged up. Thanks!

 

[Wayners]

Ladies stockings (tights) might work better?
I use for thined paint.
You can buy chemical filter bags but you need to know what number microns filtering you need if it's a thin liquid with fine particles.

 

[brum_screwdriver]

Ladies stockings (tights) might work better?
I use for thined paint.
You can buy chemical filter bags but you need to know what number microns filtering you need if it's a thin liquid with fine particles.

Good idea! I will give that a go

 

[Harry Bloomfield]

There are a variety of methods of filtering, depending on the size of particles you might need to filter out. A kitchen, mesh strainer, will take the larger lumps out, ladies stockings, then kitchen paper, will take the yet smaller particles out. Coffee paper filters are likely the finest, easily available filter.

 

[brum_screwdriver]

There are a variety of methods of filtering, depending on the size of particles you might need to filter out. A kitchen, mesh strainer, will take the larger lumps out, ladies stockings, then kitchen paper, will take the yet smaller particles out. Coffee paper filters are likely the finest, easily available filter.

I think the coffee paper filters are the correct fineness, but I am wondering if the type i used is just too easily clogged by anything but water. The degreaser is only being used to clean factory grease off new bicycle chains... so has a suspension of grease in it, i.e. no other matter.

 

[opps]

Ladies stockings (tights) might work better?
I use for thined paint.
You can buy chemical filter bags but you need to know what number microns filtering you need if it's a thin liquid with fine particles.

Yeah, I use old tights to remove lumps from thicker paints (masonry to oil based). When working with 2K paints (which are thin), I use the conical paper filters (with a mesh). I used to get mine from Morrells. To be honest, I don't recall which thickness of cones/mesh I used.

 

[Lower]

I think the coffee paper filters are the correct fineness, but I am wondering if the type i used is just too easily clogged by anything but water. The degreaser is only being used to clean factory grease off new bicycle chains... so has a suspension of grease in it, i.e. no other matter.

If there is grease visible in the degreaser, then surely you've saturated the solvent and its not going to degrease any more. I certainly have never heard of anyone being able to filter out dissolved grease.

Unless it's lumps of grease that haven't dissolved.

 

[brum_screwdriver]

If there is grease visible in the degreaser, then surely you've saturated the solvent and its not going to degrease any more. I certainly have never heard of anyone being able to filter out dissolved grease.

Unless it's lumps of grease that haven't dissolved.

The manufacturer says it can be used about a dozen times

 

[Lower]

The manufacturer says it can be used about a dozen times

It will depend on how much grease it dissolves each time its used. Once its saturated it won't dissolve any more irrelevant of how many times the manufacturer says it can be used.