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Rhodium plating turns gray when we filter the solution

SIR, AS SOON AS I FILTER MY RHODIUM SOLUTION I GET GREY PLATING INSTEAD OF WHITE? IS FILTERING RIGHT HOW DO WE MAINTAIN OUR BATH REGULARLY?

RAJIV KADECHA
RHODIUM PLATER - AKOLA , MAHARASHTRA , INDIA
April 25, 2009

GREY PLATING IN RHODIUM IS NORMALLY BECAUSE YOU HAVE EXCESS OF RH IN THE BATH .TRY TO DILUTE 30% IN A LITTLE BATH AND MAKE A SAMPLE BEFORE YOU DILUTE ALL THE BATH.
FILTERING ONLY CAN IMPROVE THE COATING AND IS BETTER IF YOU DO IT CONSTANTLY

Ricardo Burstein
Bnei Berak, Israel
May 16, 2009

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