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Additive-manufactured components in a single work step sealing, impregnating and finishing to make them gas- and watertight

A common challenge in additive manufacturing is the impermeability of printed prototypes, spare parts, etc. This can be efficiently guaranteed with a universal solution from DIAMANT Polymer. dichtol AM Hydro makes additively manufactured components and workpieces gas- and watertight in a single step, while also protecting them from environmental influences.

dichtol AM Hydro is known for its ability to effectively seal microporosities in 3D printed objects, making them gas- and water-tight. The user-friendly, solvent-free high-performance polymer can be used to quickly and reliably infiltrate, seal, impregnate and finish additively manufactured objects of all kinds. dichtol adapts flexibly to the application conditions of additive manufacturing and reliably seals pores up to 0.2 mm in diameter.

Suitable for common printing processes and materials used in additive manufacturing

The ready-to-use high-performance polymer is suitable for all common printing processes. In particular for use in filament printing and powder-based manufacturing processes. Filament 3D printing is a widely used technology for the additive manufacturing of solid and partially hollow components. Powder-based manufacturing processes allow the production of high-resolution and precise 3D objects with low porosity and high surface quality. dichtol AM Hydro can be used on additively manufactured components made from common printing materials – in particular PLA, ASA, ABS and polyamide.

Pore-deep infiltration of 3D printed objects with fast curing

In contrast to conventional sealants in 3D printing, which often only protect the surface of additively manufactured components, dichtol AM Hydro penetrates even the finest pores of the treated objects and physically hardens there in just a few hours. One hour must be calculated per millimeter of wall thickness.

On the surface, the sealer is already dry after around 60 minutes, so that the components can be moved again quickly. The solvent-free high-performance polymer anchors itself in the treated component and seals it reliably even at changing temperatures. In this way, the treated surface is sealed and impregnated in depth in just one work step.

dichtol AM Hydro penetrates deep into additively manufactured workpieces and hardens there. The hard-elastic high-performance polymer ensures permanent, seamless sealing and impregnation so that no liquids or gases can escape from flower vases, cylinders and other 3D-printed objects.

The sealing and impregnation of additively manufactured objects of different types, sizes and properties is completed in a short time with the low-viscosity dichtol AM Hydro. The water-based sealer is not a hazardous substance and is therefore particularly user-friendly. It can be applied without additional machines or equipment. The choice of the optimum application method depends on the size and accessibility of the component surfaces to be sealed.

Flexible application for components of different sizes and properties

Dipping is particularly suitable for sealing small and complex components evenly gas- and liquid-tight. Brushing on dichtol AM Hydro is recommended for components that are not to be sealed at all points. Spraying is the ideal method for additively manufactured objects with large surfaces. Areas that are difficult to access, drill holes or fine channels can be protected and sealed by injection.

A clean surface ensures optimum adhesion and prevents the formation of bubbles or irregularities that could impair watertightness. dichtol AM Hydro is colorless after curing and protects the treated component permanently. The sealed pores also mean that dirt can no longer accumulate on the impregnated, additively manufactured objects. The treatment with the ready-to-use polymer system also gives colored 3D printed components a remarkable brilliance.

The polymer system dichtol AM Hydro is equally easy to apply with a brush, spray, inject or dip. It reliably seals pores up to 0.2 millimeters in diameter.

The advantages of dichtol AM Hydro at a glance:

  • Gas and liquid-tight components
  • Efficient use of materials
  • Very good pore sealing
  • High chemical resistance (e.g. oil)
  • Easy to clean surface (with standard household cleaners)
  • Simple application, no machines or equipment required
  • Can be used indoors and outdoors
  • Well suited for PLA, ASA, ABS and polyamide materials
  • Well suited for filament printing processes and SLS
  • VOC-free, non-hazardous and non-flammable
  • Solvent-free, water-based sealer

On a special landing page, you will find an overview of the specific properties, benefits and reviews of the product as well as ordering options. Infiltration, impregnation and sealing with dichtol AM Hydro is clearly demonstrated in an instruction video.


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