Features: TDI Polymer, 130–140°C Deblock, Free NCO ≤0.2%
Application: Can&Coil Coatings, Adhesives for Flexible Packaging, Textile Coatings
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| Parameter | Value |
|---|---|
| Product type | Solvent-based blocked polyisocyanate (TDI polymer) |
| Solid content | 65.0 ± 2.0 % |
| Valid NCO content | 5.5 ± 0.3 % |
| Free NCO | ≤ 0.2 % |
| Viscosity (25 °C, rotational) | 7000 ± 3000 mPa·s |
| Deblocking temperature | 130–140 °C |
| Standard solvent | Solvent Naphtha 100 |
DXTB-65D is a solvent-based TDI-polymer blocked polyisocyanate crosslinker used across several heat-processed coating, adhesive and ink formulations.
Used as a blocked polyisocyanate crosslinker in automotive coating formulations requiring thermal activation during the curing process.
Used in electrophoretic coating formulations where a thermally activated blocked isocyanate crosslinker is required.
Used as a crosslinking component in adhesive formulations for flexible-packaging lamination applications.
Used as a crosslinker in textile ink formulations designed for industrial printing and subsequent curing or heat-treatment processes.
Used as a thermally activated crosslinker in metal coil coating formulations processed through continuous coating and baking lines.
Application validation: Final suitability should be confirmed in the customer’s actual formulation, substrate, application process and curing conditions.
Consider DXTB-65D when the formulation requires a solvent-based TDI-polymer blocked polyisocyanate crosslinker and the production process can accommodate thermal activation within the grade’s confirmed deblocking range.
Refer to the Technical Data tab for the complete confirmed specification rather than selecting the grade from one parameter alone.
Final grade selection should consider the customer’s binder system, substrate, formulation composition, coating or adhesive process and actual curing schedule.
Dongsen can review the customer’s target application and formulation requirements before sample evaluation.
For current DXTB-65D technical documentation, contact Dongsen Technical Support. Only current approved technical documents should be used for formulation development and product qualification.
What is DXTB-65D?
DXTB-65D is a solvent-based TDI-polymer blocked polyisocyanate crosslinker supplied by Dongsen as a raw material for thermally cured formulations.
What is the deblocking temperature of DXTB-65D?
The confirmed deblocking temperature is 130–140 °C. Refer to Technical Data for the complete current specification.
Where is DXTB-65D currently used?
Current applications include automotive coatings, electrophoretic coatings, flexible-packaging adhesives, textile inks and metal coil coatings.
What solvent is listed for DXTB-65D?
The current approved product data lists Solvent Naphtha 100 as the standard solvent.
How can I obtain current technical documentation?
Contact Dongsen Technical Support to confirm the latest available technical documentation and discuss application or grade-selection requirements.
