Covestro Bayhydur 401-60 PGDA water-based PU curing agent weather resistance

Product Features
A hydrophilically modified aliphatic polyisocyanate based on isophorone diisocyanate (IPDI), Bayhydur® 401-60 PGDA can be used as a co-reactant for water-based resins and for the preparation of resistant Curing agent for chemical and weather resistant coatings

Supply Form
About 60% propylene glycol diethyl ester solution

Feature Data*

*This data is for reference only, and the product specifications that should be followed are subject to the final release.

Other data**

**This data is general information.

Solubility/Dilution
Generally speaking, Bayhydur® 401-60 PGDA can be diluted with different polar to non-polar aliphatic solvents, which are common in formulated paints. It can be diluted to 20% solids with polar solvents. The storage stability of diluents must be thoroughly tested, especially when gasoline-based diluents are used which need to be done with care and skill. It is recommended that Bayhydur® 401-60 PGDA be added to gasoline-soluble adhesives. Use only polyurethane grade solvents (less than 0.05% water). The solvent must not contain reactive groups such as hydroxyl or amino groups.

Compatibility
Generally speaking, Bayhydur® 401-60 PGDA can be mixed with various Desmodur® and Bayhydur® types, such as Desmodur® N3300 or N3600, Bayhydur® 3100, XP 2655 or XP 2547.
However, compatibility must be tested in each case. Meanwhile, Bayhydur® 401-60 PGDA can be dispersed in various water-based adhesives such as bayhydrol® types, such as Bayhydrol® A2470, A2646, A242, A2845 and U2755.
The overall formulation (solids content, co-solvent content, type of co-solvent) needs to be considered to achieve a stable and proper working formulation.
  If you need technical support, please ask your supplier.

Features/Applications
Bayhydur® 401-60 PGDA is easy to emulsify into water-based paint or adhesive in water phase and is mainly used as a co-crosslinking agent for Bayhydrol® alignment water-based resin.
The coating properties of two-component polyurethane coatings are improved by adding Bayhydur® 401-60 PGDA to HDI-based Bayhydur crosslinkers, such as Bayhydur® XP 2655 or Bayhydur® XP 2487/1.
Typical mixtures of Bayhydur® 401-60 PGDA and the aforementioned HDI-based Bayhydur crosslinkers contain 5-30% of Bayhydur® 401-60 PGDA in the total solids of the crosslinker.
The advantages of Bayhydur® 401-60 PGDA are as follows:
Final properties, such as
· Increased surface hardness;
• Increased chemical resistance and solvent resistance.
Application properties, such as
• Significantly longer pot life, even at high processing temperatures;
• Dries faster;
• Improved robustness, including increased bubble-free layer thickness.

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about1.11

g/cm3

DIN 51757

**This data is general information.

Solubility/Dilution
Generally speaking, Bayhydur® 401-60 PGDA can be diluted with different polar to non-polar aliphatic solvents, which are common in formulated paints. It can be diluted to 20% solids with polar solvents. The storage stability of diluents must be thoroughly tested, especially when gasoline-based diluents are used which need to be done with care and skill. It is recommended that Bayhydur® 401-60 PGDA be added to gasoline-soluble adhesives. Use only polyurethane grade solvents (less than 0.05% water). The solvent must not contain reactive groups such as hydroxyl or amino groups.

Compatibility
Generally speaking, Bayhydur® 401-60 PGDA can be mixed with various Desmodur® and Bayhydur® types, such as Desmodur® N3300 or N3600, Bayhydur® 3100, XP 2655 or XP 2547.
However, compatibility must be tested in each case. Meanwhile, Bayhydur® 401-60 PGDA can be dispersed in various water-based adhesives such as bayhydrol® types, such as Bayhydrol® A2470, A2646, A242, A2845 and U2755.
The overall formulation (solids content, co-solvent content, type of co-solvent) needs to be considered to achieve a stable and proper working formulation.
  If you need technical support, please ask your supplier.

Features/Applications
Bayhydur® 401-60 PGDA is easy to emulsify into water-based paint or adhesive in water phase and is mainly used as a co-crosslinking agent for Bayhydrol® alignment water-based resin.
The coating properties of two-component polyurethane coatings are improved by adding Bayhydur® 401-60 PGDA to HDI-based Bayhydur crosslinkers, such as Bayhydur® XP 2655 or Bayhydur® XP 2487/1.
Typical mixtures of Bayhydur® 401-60 PGDA and the aforementioned HDI-based Bayhydur crosslinkers contain 5-30% of Bayhydur® 401-60 PGDA in the total solids of the crosslinker.
The advantages of Bayhydur® 401-60 PGDA are as follows:
Final properties, such as
· Increased surface hardness;
• Increased chemical resistance and solvent resistance.
Application properties, such as
• Significantly longer pot life, even at high processing temperatures;
• Dries faster;
• Improved robustness, including increased bubble-free layer thickness.