Features: HDI Trimer, 70% Solids, 80–100°C Deblock
Application: Can&Coil Coatings, Adhesives for Flexible Packaging
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| Specification | Value |
|---|---|
| Product Type | Solvent-based blocked polyisocyanate — HDI Trimer |
| Solid Content | 70.0 ± 2.0% |
| NCO Content | 7.5 ± 0.5% |
| Free Monomer | ≤0.5% |
| Deblocking Temperature | 80–100°C |
| Carrier | PMA |
Specifications are based on Dongsen’s current approved product data source. Final formulation and baking conditions should be validated in the customer’s actual system.
DXB-3370G belongs to Dongsen’s solvent-based blocked polyisocyanate range for one-component baking and heat-activated crosslinking systems.
The current application scope of Dongsen solvent-based blocked polyisocyanates includes:
For DXB-3370G, product-specific suitability should be confirmed against the customer’s resin system, formulation compatibility and actual baking process before scale-up.
Dongsen supplies blocked polyisocyanate crosslinking raw materials, not finished coatings or printing inks.
When to Consider DXB-3370G
Consider DXB-3370G when the formulation requires a solvent-based blocked HDI trimer crosslinker and an 80–100°C deblocking profile is appropriate for the intended system.
Confirmed Selection Signals
DXB-3370G combines HDI trimer chemistry, 70% solids, PMA carrier and an 80–100°C deblocking temperature.
Application Fit
The formal product-side application direction currently includes Can & Coil Coatings. Dongsen’s broader solvent-based blocked range is also used in automotive coatings, electrophoretic coatings, aluminum food-can exterior coatings and textile printing inks.
Related Grade Directions
DXB-3375C, DXB-3375D and DXB-3375E are solvent-based blocked HDI trimer alternatives with higher deblocking-temperature ranges. They should be reviewed when a different activation profile is required.
Grade Selection Support
Final selection should consider the resin system, formulation compatibility, required deblocking temperature and actual baking conditions. Dongsen can assist with grade screening and technical evaluation.
Documents
Current technical documentation for DXB-3370G can be requested from Dongsen. Product-specific TDS publication remains subject to the current document approval status.
What type of crosslinker is DXB-3370G?
DXB-3370G is a solvent-based blocked HDI trimer polyisocyanate crosslinker designed for one-component heat-activated systems.
What is the deblocking temperature of DXB-3370G?
The current approved product data lists a deblocking temperature of 80–100°C. Deblocking temperature should not be treated as the complete coating curing schedule; the actual formulation and baking process must be validated separately.
Where are Dongsen solvent-based blocked polyisocyanates used?
Current application directions include automotive coatings, electrophoretic coatings, metal coil coatings, exterior coatings for aluminum food cans and textile printing inks. Grade-specific suitability should be checked for each formulation.
What carrier does DXB-3370G use?
The current approved product data lists PMA as the carrier.
How should I select between DXB-3370G and other blocked grades?
Compare product chemistry and deblocking-temperature range against the resin system and actual baking process. Dongsen can assist with grade selection based on the customer’s formulation requirements.
