A good few years ago, a late friend of ours who was a plasterer, made us a tallow and lime paint for the outside of our newly tendered property. 

 

We need more but can't remember quantities etc.

 

I know we had to buy pig fat (tallow) and a bag of lime chips which he put in a large metal bin mixed with water. It erupted furiously and he had to put a concrete block on the lid to stop it blowing off.

 

Once cooled this becomes your concentrate which you dilute to use as the paint for the render. The results are amazing but after a number of years it needs redoing.

 

If this process is familiar with anyone,  could you please advise me.

 

Many thanks. 

 

Arnold9801