Anti-shrink additives

• Denka CSA #20 is an expansive additives which forms a stable crystalline structure within the cement matrix and gives a durable shrinkage reduction. The additive reduces shrinkage, heat of hydration and may increase strength. In Europe these additives are used mainly in shrinkage compensated mortars.


• Namex XA is a uniquely modified Magnesium oxide with self-healing properties to counteract shrinkage. To the contrary of most magnesium oxides, Namex XA has been given a reactivity that will allow it to be fully reacted in 90 days.

• Namex XC is a specifically treated Calicum oxide. Because of the normally high reactivity of CaO, Namex XC was developed as a delayed type. The low water requirement ideally matches the low w/b ratio of today's construction methods.


• Namex MOX is a mix of selected metal oxides to counteract shrinkage and cracking of concrete. With Namex MOX, a balanced expansion can be achieved.

 Reactive pozzolanic fillers

• Metaver^® is a specially calcined kaolin that reacts with the free Portlandite to form added CSH phases (calcium-silicate-hydrate; cement binder). This makes the cement matrix denser and gives unique properties, e.g. chlorine resistance, reduced efflorescence. 


• Microsit^® is a fly ash classified to very fine particle sizes (10µ or 20µ). The fineness of the spherical particle guarantees a higher pozzolanic reactivity and improves the rheology of mortars and concrete. Microsit is approved under DIN 1045-2 for concretes and can partially replace cement.

 Special binders

• Ecological binder


• Denka SC-1 is a very special accelerator for Portland cement which is supplied as an additive for finished products such as water stop and quick hardening mortar/concrete. It also supplies excellent hardening characteristics at low temperatures and very high early strength (depending on addition levels).


• Newchem ACC is based on different Aluminate Cements and was developed to accelerate the setting time and early strength of cement-based products. It increases binding properties and durability. It can be applied where fast setting is needed, e.g., repair and water stop mortars, 3D printing and post fixes.

Further information