Preliminary TechnicalData Sheet
Modified polyether resin for powder coatings
Description
AHA-AT8681 is a solid modifiedpolyether resin for powder coatings. This novel resin with terminal phenolic hydroxylgroups can react with epoxy functional resins for formulating LAT (lowapplication temperature) polyether-epoxy hybrid powder coatings.
Typical properties
Application
AHA-AT8681 is recommended to use in polyether-epoxyhybrid powder coatings to achieve low temperature cure at 140℃/17minor 130℃/25min.
This resin contains an internal catalyst.
Advantages
In comparison with the existing LATsystem, this novel hybrid powder coating has the following technical advantages:
Rapid cure response
Excellent storage stability
Very good flow
Low discoloration
Better chemical resistance
Mixing ratio
The combined ratiowith solid epoxy resinwith about EEW750 is recommended to be 50:50parts by weight, but slightly increased epoxy useful level will be benefit ofimproving impacts.
Suggested formulationstarting point
Components | Parts by weight | |
AHA-AE808 | 50 | 50 |
AHA-AT8681 | 50 | 48 |
AHA 1088P | 1.5 | 1.5 |
R5566 (TiO2) | 50 | 50 |
Total | 151.5 | 151.5 |
Coating Properties | ||
Stability, 1month@40℃ | Sintering | Free-flowing |
Impacts, 50Kgcm,D/R | pass | pass |
Gloss %, 60 | 104 | 104 |
Initialcolor, 140℃/20min | ||
L | 94.59 | No date |
a | -0.18 | |
b | 2.22 | |
Overbake color, 170℃/20min | ||
L | 94.29 | |
a | -0.20 | |
b | 3.69 | |
Overbake yellowing (△b) b2-b1 | 1.47 | |
Total color difference (△E) | 1.5 |
Process
Added to the binder/pigment blendbefore extrusion.
Shelf life
Based on our experiencethis product should be consumed out within 18 months from date of manufacture. Forolder than this period, it is recommended to re-check the performance.
Storage & Notice
Store in temperature between 2 and 35℃or cool dry place to avoid wetting-absorption.
Keep package closed after using.
Handling & Precaution
Avoid contact with eyes and skin. Avoidbreathing dust. Wash after handling.
For further information, please refer to the SDS
Regulatory status
AHA-AE8681 complies with TSCA (USA), DSL/NDSL (Canada) and IECSC (China).
Package
Packaged in woven bag with polyethyleneliner. Net weight 25 Kg per bag
Notice:
The keytechnical data or specifications for the above product described in this papermay be changed from time to time due to improvement constantly. AHA reserves the right to change the specificationsof its products without prior notice.
Although the information in this paper isbased on our own investigation and is believed reliable, AHA can not assume any responsibility for performance or resultsobtained through the use of our products herein described. Neither we nor ouragents shall be liable for any injury, loss or damages directly or indirectlycaused by our products. The user is held to check the quality, safety and allother properties of our product before using. Nothing herein is to be taken aspermission or recommendation to practice any patented invention without alicense.
SDS is available after we get your request. Pls email us to get SDS
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