Ok, these are the destructions for the Oz brand I used:

I don't know what the equivalent product would be in your neck of the woods. It's referred to as epoxy enamel.
        White Knight Tub n Tile

Suitable Surfaces

Tub 'n' Tile refinishes bath tubs, wash basins, laundry tubs, toilets, porcelain and metal surfaces with a gleaming new colour.
        
Drying Times

Touch dry: 6 hours.
Re-Coat: After 12 hours and before 36 hours.
Full Cure: 4 - 5 days.

Drying times may be extended in low temperature and high humidity.
        
Coverage

Up to 12 square metres per litre depending on surface porosity and film thickness.

Thinning: Not required.
        
Preparation

To achieve a superior finish, thorough surface preparation is essential. If the surface is not prepared properly, poor adhesion will result.

The prepared surface needs to be cleaned thoroughly with an abrasive cleaning powder or Rustguard Solvent. Sanding of the entire surface is also required before application. It is advisable to cover taps with plastic bags in case of water leaking and to apply masking tape at edges (such as plug holes) of surface to be coated.

Mixing: Stir contents of both A and B cans separately with a flat paddle. Pour the contents of cans A and B into an all-metal container and stir well until completely mixed (approximately 5 minutes).

Divide mixture in half and store one half in a tightly closed metal container in lower part of refrigerator. Allow the other half to stand for one hour before use. Stir for 5 minutes before application.
        
Application Details

Start applying Tub 'n' Tile around the edges with a clean, pure bristle brush. Continue down to base of the surface to be painted.

Tub 'n' Tile is a self-levelling finish which, for best results, should be applied in thin coats. A second coat should be applied for a good finish. Apply no sooner than 12 hours and no later than 36 hours after first base coat. Use remaining contents from refrigerator and allow to warm to room temperature (approximately 1 hour) before using. Stir for 5 minutes before application. For best results, allow a minimum of 5 days warm weather drying before use.
        
Pack Sizes

500ml cans
Available in White and Vanilla only
        
Health & Safety

Refer to Material Safety Data Sheet available on request.



I used one packet for the bath, which is a reasonably large bath, so two packs of a similar size would be needed for the bath and enclosure. In which case, that's less mucking around because you would mix the first packet up and use it for round one, and then mix the second from scratch for round two. Having to store half in the frig meant having to wait an hour for it to come to room temperature, but starting with a new packet for round two would make it a quicker process. The brand I used has 2 separate tins each holding 500mls.

Helen

P.S. when you said the simple solution, I assumed you meant hanging a picture on the wall.