ASK Chemicals Foundry Binders, Coatings, Riser Sleeves and Filters

Selection and quotation of ASK Chemicals foundry materials: ISOCURE, ECOCURE, PEP SET and INOTEC binders, MIRATEC and SOLITEC coatings, EXACTCAST sleeves and UDICELL filters.

ISOCURE and ECOCURE Cold Box Binders

Cold box binders for sand cores and precision moulds: a phenolic resin and an isocyanate cure by gassing with a tertiary amine. ISOCURE is the universal family for high production core shops, ECOCURE lowers emissions and binder usage. In ECOCURE BLUE part 1 is not classified as hazardous.

ISOCURE: phenolic urethane cold box binder since 1968
ECOCURE HE: up to 25% less amine consumption
ECOCURE BLUE: free phenol below 1%
ISOCURE FOCUS 388/688 for iron, steel and aluminium

PEP SET, ASKURAN and ALPHASET No-Bake Binders

No-bake binders for moulds and large cores. PEP SET is a phenolic urethane system with a catalyst: on an automated line it produces fully cured moulds in less than 90 seconds. ASKURAN and MAGNASET furan resins are acid curing, ALPHASET and NOVASET are water-based ester curing binders.

PEP SET: fully cured moulds in under 90 seconds
ASKURAN RS: furan resin with reduced sulphur
MAGNASET: less than 25% free furfuryl alcohol
ALPHASET and NOVASET: water-based binders for steel

INOTEC and INOBAKE Inorganic Binders

INOTEC is a silicate based inorganic core binder, mainly for aluminium permanent mould work on cylinder heads, engine blocks and e-engine housings. It leads to no harmful emissions. INOBAKE is an inorganic no-bake system for moulds in light metal foundries.

INOTEC EP 4158 binder for filigree cores
INOTEC HS 3000 binder for voluminous cores
INOTEC TC and WJ promotors for surface quality
INOTEC EP 4871 and EP 4872 grades for iron

MIRATEC, SOLITEC and VELVACOAT Foundry Coatings

Water-based MIRATEC coatings are applied by dipping to cold box cores in automotive serial production. Water-based SOLITEC for flow coating, spraying and brushing suits big and complex moulds, some grades change colour on drying. VELVACOAT is alcohol-based, CERAMCOTE serves Lost Foam.

MIRATEC HC 501: cold box and shell (Croning) cores
SOLITEC HI 704: zircon-free, colour change
VELVACOAT GH 601: alcohol-based, against penetration and veining
CERAMCOTE EP9 516: expanded polystyrene patterns

EXACTCAST Riser Sleeves and Mini-Risers

EXACTCAST exothermic and insulating sleeves come in cylindrical, insertable, neckdown and mini-riser designs. Insertable sleeves are produced with the cold box process or with inorganic silicate binders and are non-fibrous. Mini-risers allow a 60%-70% feed efficiency.

IN series: insulating, steel up to approx. 10 cm
STL series: steel sections from approx. 9 cm
EXF series: fast igniting, fluorine-free exothermic
KMV mini-risers for steel, OPTIMA for serial work

UDICELL and EXACTFLO Ceramic Filters

UDICELL filters are fully sintered partially stabilized zirconia filters for steel and iron foundries, with carbon bonded types for low pouring temperatures. EXACTFLO covers cellular and silicon carbide filters for grey and ductile iron as well as non-ferrous alloys.

UDICELL Zirconia: 10–15 PPI, stainless and low alloy steel
UDICELL Carbon Bonded: maximum dimension 150 mm
EXACTFLO Cellular: up to 1450 °C, 100 csi for ductile iron
EXACTFLO SiC: up to 1510 °C, 20–45 PPI for grey iron

Choosing a Binder by Process and Alloy

In the cold box process a phenol-formaldehyde resin and an isocyanate cure by gassing with a tertiary amine. The reaction is very fast, so the process suits series cores, including water jackets and oil duct cores.

Moulds are made with no-bake systems: PEP SET phenolic urethanes with a catalyst, ASKURAN and MAGNASET furan resins with an acid hardener, and water-based ALPHASET and NOVASET with an ester co-reactant for steel.

For aluminium cylinder heads and engine blocks in permanent moulds the inorganic INOTEC binder replaces organic systems.

Choosing a Coating by Application Method

The application method sets the coating family. Water-based MIRATEC is applied by dipping to cold box core packages in automotive work, water-based SOLITEC by flow coating, spraying or brushing on large no-bake moulds; several SOLITEC grades change colour as a wet/dry indicator.

Alcohol-based VELVACOAT can be brushed, sprayed, flow coated or dipped. For shell (Croning) cores the product finder lists MIRATEC HC 501 and MIRATEC GH 401, for Lost Foam patterns CERAMCOTE.

Choosing a Riser Formulation by Section and Alloy

The insulating EXACTCAST IN series suits all metals including steel up to approx. 10 cm thickness, the STL series heavier steel sections of approx. 9 cm and higher.

The EX series is a standard exothermic grade for all ferrous metals, while EXF is fluorine-free and was developed to eliminate fish-eye defects from green sand contamination. A conventional riser on steel feeds with just 30% of its volume, EXACTCAST mini-risers reach a 60%-70% feed efficiency.

Choosing a Filter by Alloy and Pouring Temperature

For stainless and low alloy steel choose sintered UDICELL zirconia filters with 10–15 PPI, and UDICELL carbon bonded filters where pouring temperatures are low.

Iron foundries use EXACTFLO: cellular filters with 100 csi for ductile and 200–300 csi for grey iron up to 1450 °C, and silicon carbide filters with 10–15 PPI and 20–45 PPI up to 1510 °C. For aluminium there are EXACTFLO Alumina/SiC filters with 10–30 PPI.

ASK Chemicals and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of ASK Chemicals and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.