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3D Binder TechnologyPrint head-compatible, dimensionally accurate and productive

INOTEC 3D – The inorganic binder system for hot-curing additive
manufacturing processes

For light metal casting applications,
we recommend our newly developed inorganic 2-component binder
system consisting of the liquid
INOTEC 3D printing fluid and theINOTEC PROMOTOR as fixedcomponents.

The advantages of INOTEC 3D technology:• Zero-emission core production, core storage and casting process
in additive manufacturing• Improves dimensional stability• Less „finishing“ work on the printer sand cores• Adjustable thermal stability through the choice of printing fluid• Guarantees cast products with high surface quality and free fromresidual sand adhesions• Microstructure with improved mechanical propertiesNOVASET 3D – The new phenolic resin binder for cold curing
NOVASET 3D shows a uniqueprint head compa­tibility, reduces
the “finishing” work and increases
productivity.

The advantages of NOVASET 3D technology:• Good process stability• Very good and clean casting surface• Good thermal stability• Nitrogen and sulfur-free, and thus particularly well suited to steel
and ductile cast iron
• Very easy finishing

CHEM REZ JETSET 3D – The all-rounder under the furan binder for all
casting types and dimensions
The versatile CHEM REZ JETSET 3D
binder specifically developed for use
in 3D sand printing is characterized
by its print head compatibility

The advantages of CHEM REZ JETSET 3D technology:• Easy print head cleaning• Good process and printing stability• Very long storage stability of the binder• Applicable with all common mold materials• Almost unlimited curing times• Very efficient• Very good storage capacity of the printed cores

Matching coating for organic 3D printing – VELVACOAT 3D
Specifically developed for 3D printing, VELVACOAT 3D convinces with very good fluidity and very quick drying.
Air-drying is quick so that burning off is not necessary.

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This information is based on our current state of knowledge and does not represent assurance of the properties of the products described. We are only
liable for product-related advice and information within the scope of duties of disclosure included in collateral contractual agreements unless expresslyagreed otherwise. (03/ 24)

INOTECTM 3D

3D Binder Technology
Print head-compatible, dimensionallyaccurate and productive
The 3D binder technology from ASK Chemicals combines the specific requirements of 3D sand printing
with the high performance profile of ASK Chemicals binder technology. During 3D sand printing in
the powder binder jetting process, cores and molds are created without tools on the basis of a digital
3D data model through layer-by-layer application of the mold material e. g. sand. The liquid jetting fluidis then applied point-by-point in layers to the area to be rendered in order to create the geometry
predefined by CAD.

Process stages of the powder binder jetting process

Droplet formation in 3D sand printing

Dimensional accuracy in 3D sand printing

Proper function of the print head modules that finely apply the printing fluid to each layer of sand is

The dimensional accuracy of the components produced in the powder binder jetting process is aparticularly crucial for the quality of the printed result. High material compatibility and resistance of thecritical success factor in additive core production due to the absence of external contours, such ascomponents installed in the print head modules with respect to the chemical components of the 3D

the molding box or core tool. Physical effects in particular must be overcome in this process toprinting fluid are thus essential. The physical and chemical parameters of the 3D printing fluid, such as

ensure high dimensional accuracy and low finishing effort of the components: an example is thethe viscosity and surface tension, also influence droplet formation behavior and thus the dimensionalmigration of the fluid 3D binder agent to areas of the support sand due to capillary and gravitational

accuracy of the additive core production process.

forces or occurring shrinkage effects, which result from evaporation of the solvents of the 3D
printing fluid in the printing process. These physical effects are in part counteracted throughprocessing of the CAD data module.

12

Tansfer of theCAD models

Ideal stagesof droplet
formation

Application of theparticle layer

34

1

Meniscusformation

2Meniscustear

3

Recombination
droplet trail4

Stabledroplets

Selective
binder printing

Lowering of thework platform

Schematic representation of binder fluid migration
due to capillary forces

Schematic representation of binder fluid migration
due to gravity

3D binder technology in the additive core production process must satisfy the high thermal

5

Possible
defects indropletformation

Repeatsteps 2 – 4

1Satellite

droplets2
Dropletdeviation3

No individual
droplets

4
Trailformation

5
Uncontrolled

stability requirements to withstand the mechanical and thermal stress during the castingprocess so that cast products can be rendered with high dimensional accuracy.

wettingbehavior

ASK 3D binder portfolio

6

Removal of theloose material

7

Finishedcomponent

The 3D binder portfolio of ASK Chemicals includes inorganic 3D printing fluids as well as furan
resin-based binders for acid curing and phenolic resin-based binding agents for cold curing.
Binder technology

Application

Casting material

INOTEC 3D

High-volume founders, prototype founders

Aluminum

CHEM REZ JETSET 3D

High-volume, low-volume, prototype founders

All types of casting

NOVASET 3D

High-volume, low-volume, prototype founders

All types of casting esp. steel and ductile
cast iron