VEINO ULTRATM MBM 2

HYBRID ADDITIVE FOR THE REPLACEMENTOF SPECIAL SANDS
The production of thermally stressed, complex cores andcomplex casting geometries places high demands oncasting expertise and the raw materials used. Even smallchanges to a geometry or process can lead to casting
defects and the associated resource-intensive andexpensive rework. Serious casting defects even lead toscrap.
With the new VEINO ULTRATM MBM 2, ASK Chemicals
has developed an innovative sand additive that canreplace or reduce the use of special sands whileachieving excellent casting performance.

TECHNOLOGICAL ADVANTAGES▪

(Partial) Replacement of special sands▪

Comparably good casting results in combination
without/reduced special sand quantity▪

Avoidance of casting defects, such as veining,
penetration and deformation▪

Less core box wear compared to chrome ore sand

VEINO ULTRATM MBM 2Figure 1:
Possible cost savings
by replacing specialsand

Special sand reduction with engineered sand additives
Special sands are often used to cast complex castinggeometries perfectly. The most widespread special sands
are chrome ore sands, andalusites, feldspar sands andceramic sands such as bauxite sand. Special sands have avery high efficiency against casting defects and emit little tono gas or odor. However, with few exceptions,regeneration (incl. separation) is difficult and the disposal
causes high costs, especially in the case of chrome ore
sand, as more and more disposal companies refuse toaccept used sand contaminated with chromium ore. The
performance of special sands nevertheless remains
undisputed. The use of specialsands is expensive – thecosts vary greatly due to the fluctuating raw material andenergy prices for production, refinement and transport. Thesituation is different with VEINO ULTRATM additives.
VEINO ULTRATM MBM 2 offers foundries the possibility toreduce the use of special sands while achieving the sameor better casting results. The hybrid additive, which
consists of 70% inorganic components, impresses with its
good technical performance and low emission load.
Casting defect prevention thanks toVEINO ULTRATM MBM 2Field trials in various foundries with different moldingmaterials have demonstrated the performance capability ofthe newly engineered sand additive. The aim was todispense with different special sands or to significantly
reduce the amount used. The additive VEINO ULTRATM
MBM 2 performed very well in all test trials. Figure 2compares the casting results of a step core cast with 50%chrome ore sand and 50% silica sand and a core cast with100% silica sand using VEINO ULTRATM MBM 2.
The additive VEINO ULTRATM MBM 2 can be used
universally in various molding compounds. It can be usedin engine block and cylinder head production as well asfor filigree geometries such as water jackets and oil returnducts, and also for brake disc or housing production.

Figure 2: Large step cone, GJL. Casting temperature
1410°C. Water coating, approx. 300 µm layer thickness

YOUR SUSTAINABILITYPLUS
Profitability▪ Low addition rates compared to special sands▪ Lower material costs compared to special sands
Environment & Social▪ Hybrid additive with >70 % inorganic
components▪ No resin coating for less emissions▪ Lower transport volumes in the procurement
process and internal plant logistics▪ Unproblematic disposal of used sands