# B\&W Film Reversal

### Permanganate Bleach Solution

Mix equal parts A and B before use. Mixture will last a short time so it is stored in equal parts before use.

#### Part A

* 4g Potassium Permanganate
* 1000ml Water

#### Part B

* 54.5g Sodium Bisulphate
* 1000ml Water

{% hint style="warning" %}
For films with weaker emulsions such as HP5 and Kentmere 100 the quantity of the Potassium Permanganate and Sodium Bisulphate should be halved. It is probably a good idea to do so with most films.
{% endhint %}

### Metabisulphite Clearing Bath

* 30g Sodium Metabisulphite OR 35g Potassium Metabishulphite
* 1000ml Water