How to remove fixer stain from car seat

[PhotoBob]

Does anyone know how to get a rapid fixer stain out of a regular car seat?

 

[xkaes]

Give us a clue that we can work with. What's the seat covering made of -- vinyl, cotton, polyester, leather..???? What color is it -- black, gray, tan..??? How large is the stain -- 1/2", 2", 4".....???

 

[VinceInMT]

I haven’t tried it but there is this:

https://www.bhphotovideo.com/c/product/123461-REG/Photographers_Formulary_05_0105_Clothing_Stain_Remover.html

I might also try a stronger solution of standard hypo clear.

 

[koraks]

Changed the thread title to make it more specific/descriptive.

My first suggestion would be to try plenty of water - soak the stain with it and dab it up with a cloth, rinse the cloth well, and repeat this ad nauseam. Let dry and see how far you've made it to complete removal.
I assume some of the fixer will have sulfured out, so you may need to use something that will bind with the sulfer and form a soluble salt (without corroding the car...)

 

[PhotoBob]

Give us a clue that we can work with. What's the seat covering made of -- vinyl, cotton, polyester, leather..???? What color is it -- black, gray, tan..??? How large is the stain -- 1/2", 2", 4".....???

grey, leather and its about 10cm long by 4cm wide

 

[MattKing]

Send an email to the Darkroom Group .
You probably should look at automotive leather cleaners.

 

[Doremus Scudder]

This begs the question: How did you get a fixer stain on your car upholstery? And, was it working solution, used, fresh, or concentrate?

Doremus

 

[MattKing]

This begs the question: How did you get a fixer stain on your car upholstery?

Bob is a very active darkroom worker, who does all sorts of great darkroom stuff for himself and for his students, without having the benefit of a full printing darkroom at home or any darkroom location at the school he teaches at.
If anyone would be likely to spill some fixer in transit, it would be him .

 

[xkaes]

Perhaps some chemist among us could speculate on what fixer (thiosulfate) can do chemically to leather.

 

[Molli]

Does anyone know how to get a rapid fixer stain out of a regular car seat?

I can attest to the efficacy of Kodak's S-10 Fixer Stain Remover on cloth (in this case, an old cotton floor rug) but can't vouch for its safe use on leather.

"Fixer Stain Remover Kodak S-10
- For Use On Fabrics

TO MAKE:

Water (52°c) 120 ml
Citric Acid 15 gm
Thiocarbamide 15 gm
Water to make 200 ml

TO USE:

Thoroughly soak the stained area of the cloth with the above solution, then wait for the stain to disappear.
After removing the stain, wash the garment thoroughly. If the stain is an old one it will not only take longer to remove, it may require more than one application of the stain remover.

Note: Thiocarbamide (aka Thiourea) is a powerful fogging agent for silver sensitized photo material, it is used in reversal and toning baths. Keep it away from your processing area.
Handle both the thiourea and the citric acid with care. Wear rubber gloves and avoid inhaling any chemical dust.
Following use, the gloves should be cleaned in a weak household bleach solution eg 30ml of bleach to 1 quart water."

 

[mshchem]

Hypo clearing agent, no probably not. So is this degraded, oxidized??? actually sulfur?? What dissolves sulfur?? Mercury reacts with sulfur, but that's no good. Silver reacts with sulfur, that's no good.

 

[mshchem]

A really fine brass bristle brush??

 

[Tim Stapp]

Possibly a visit to the local auto salvage yard?