PROMAXON® is a synthetic hydrated calcium silicate. It is a white mineral free flowing powder, well known for its typical spherical form. By means of a special crystallization process and controlled crystal growth, spherical particles are obtained. The result is an open inner structure surrounded by an outer shell of close knitted crystals. This unique particle corresponds with the known mineral Xonotlite Ca6Si6O17(OH)2.
		For the paint application different qualities of PROMAXON® have been developed. PROMAXON® D is our basic product. PROMAXON® D, where the particles are broken without destruction of its crystal structure, resulting in a decreasing of the initial bulk density. PROMAXON® T is similar to PROMAXON® D but do not have the closer outer shell due to another production process.
		PROMAXON® is a very interesting thixotropic agent, especially in epoxy systems and tile adhesives:
			easy to use
			easy to disperse
			easy for post thixotropizing on site
			low risk for overdispersing
			limited moisture absorption
			inorganic
			heat stable and resistant
		A very important factor for the application of epoxy systems is that the thixotropy must remain stable during hardening. This is one of the advantages of PROMAXON®, especially a coated grade is increasing the thixotropic efficiency.
		In our last anti-sagging tests, done with Araldite BY158, hardener and thixotropic agent, it appeared clearly that only a small amount of PROMAXON® is needed to obtain efficient results.
		Depending on the thickness of the paint layer and the PROMAXON® grade different percentages are needed. Another big influence on the results is given by the type of resign.  The results express clearly no sagging in thick layers. Furthermore the graph indicates the quantity of PROMAXON® needed to obtain non sagging up to 1600µm and higher.
		uses in different industries.  PROMAXON® interacts with the pigments and/or filler to form a network. This network produces an increased viscosity at a low shear, but also prevents settling of these fillers. The network is broken down by shear forces during workability, which results in a low application viscosity. The network structure is quickly reformed when the forces are removed and this prevents the sagging of the applied layers. In high filled systems only a relatively small amount of PROMAXON® is needed to obtain this effect. In thicker paints the larger particles of PROMAXON® D are preferred.  Due to the heat stability of PROMAXON® there is an advantages against organic fillers which are temperature unstable. Therefore Paints treated with PROMAXON® exhibit a minimum on viscosity change over o wide temperature range.  In unfilled systems the amount of PROMAXON® is higher because, in the absent of the filler, it must create its network on its own. However the efficiency of the different PROMAXON® grades depends upon the whole composition, the performance and quantity needed of a certain PROMAXON® grade must therefore be determined experimentally for each system separately.