Jotun Muki Z 2001Jotun Muki Z 2001 is a two pack, modified low zinc ethyl silicate shop primer. Available in: 16. 75 litre units Jotun Muki Z 2001 is a two pack, modified low zinc ethyl silicate shopprimer. This is a two component inorganic low zinc moisture curing zinc ethyl silicate coating. It is a shop primer designed for very high welding and cutting speed, giving reduced weld porosity and back burning. It is fast drying and has good abrasion resistance making it