Binder technology

The binder composition is the heart of all dry lining mix technology. Only a binder technology, 100% matched to the related steel manufacturing process will fully benefit from all the advantages of dry lining mixes. The key advantages are quick and safe permanent binding with the basic raw material; no negative adhesive forces in respect to the template; no negative reaction with the permanent lining; dust-free and low odour processing.

Sievering - Weerulin's technology partner - has played a considerable part in the development of new binder compositions for many years. One example is the invention of the carbon-poor binder: This type of binder is based on hexa-free, carbon-reduced phenolic resin binders and is recommended in particular for the application in low carbonaceous steels (ULC, IF).

The advantages of the modern binder technology are:

• reduced carbon content
• high solidity after curing
• high resistance to wearing
• reduced dust
• low odour

The binders we use convert - after curing at 80°C - 100°C - to a three-dimensional net-like, insoluble and un-meltable condition. The binders have no more thermoplastic properties, even when heated further during the coking process. Due to the net structure of aromatic ring systems the binder provides favourable coking properties at high temperatures. They do not contain any polycyclical combinations, such as benzo-a-pyren.