Water-dispersible isocyanate curing agent STD 268
Product Description
STD268 is a water dispersible polyisocyanate based on hexamethylene diisocyanate (HDI). In combination with waterborne polyurethane, polyacrylate, etc., it can be used for water-borne coatings and adhesive. After addition of STD268, the ready-to-use mixture must be used within the pot life.
STD268 can be diluted with the solvents, such as propylene glycol methyl ether acetate (PMA), propylene glycol diacetate (PGDA), butyl acetate, etc. Only PU grade solvents (< 0.05% water) should be used and the solvents must be tested in advance by the user to determine suitability.
Properties
1.High gloss and high building up.
2.Excellent weather resistance.
Characteristic Data
(Typical values – not specifications)
|
Property |
Value |
Unit |
Test Method |
|
Appearance |
Colorless to yellowish transparent liquid |
— |
Visual |
|
NCO content |
20.5 ± 0.5 |
% |
GB/T 12009.4-2016 |
|
Viscosity |
5000 – 7000 |
mPa·s |
Brookfield LV, 63#/3 rpm,25 °C |
|
Color (APHA) |
< 80 |
— |
GB/T 1722-1992 |
|
Monomeric isocyanate |
≤ 0.1 |
% |
GB/T 18446-2009 |
|
Flash point |
~196 |
°C |
GB/T 5208 |
|
Density |
~1.17 |
g/cm³ |
GB/T 4472-2011 |
Storage & Handling
The product should be stored in dry conditions above 5°C and below 35°C with the integrity of the packaging, and prevent direct sunlight. The validity of this product is for 12 months, performance assessment is recommended before use after shelf life. The product should be protected from freezing during storage. Water dispersible polyisocyanates are very moisture-sensitive and react with water to form carbon dioxide and insoluble ureas. The generation of carbon dioxide can lead to dangerous increases in pressure. The containers must always be kept tightly closed and the access of water in all forms must be prevented. It is suggested to use up once the package is open.
Отправить запрос, связаться с поставщиком
Другие товары поставщика
 |
COLORTHERM Green GN-M | Description Type: Green Pigment, Micronized Delivery Form: Powder Chemical Grade: Chromium Oxide (Cr2O3) Color Index: Pigment Green 17 (77288) ... |
 |
Flame-Retardant and Anti-Static Powder Coating | Introduction Product SegmentationApplication Fields Flame-Retardant and Anti-Static Powder Coating Mining pipes, anti-static facilitie... |
 |
Indoor Powder Coatings | Surface Finish Options Overview Product SegmentationApplication Fields High-Flow Flat Powder File cabinets, office furniture, etc. ... |
 |
EP-01W single-layer FBE powder coating for pipe exterior | Product details Applicable to the single-layer structure of steel pipe external coating, suitable for heavy-duty anti-corrosion coating of the out... |
 |
Medical device friction powder | Introduction Accurate selection of powder has always been a problem for the powder industry. To solve this problem, we name the powder according t... |
Похожие товары
 |
Easy-cleaning Silicone-Modified Waterborne UV Resin | Продавец: Guangzhou Human New Material Science and Technology Co., Ltd | LUV533 is a high-performance, silicone-modified hexafunctional waterborne UV resinengineered to d... |
 |
Water-based Soft-Touch Resin for Consumer Electronics | Продавец: Guangzhou Human New Material Science and Technology Co., Ltd | Water-based Soft-Touch Resinis an advanced coating material formulated to deliver a luxurious, ve... |
 |
Conformal Coatings | Продавец: Guangzhou Human New Material Science and Technology Co., Ltd | The conformal coatingsprovide good adhesion to metal, PCB and other substrates after curing at ro... |
 |
Metalized & Laser Transfer coating | Продавец: Guangzhou Human New Material Science and Technology Co., Ltd | Metallized and laser transfer coatingsare designed with sustainability in mind, ensuring minimal ... |
 |
Hydrophilic coatings for Air Conditioner | Продавец: Guangzhou Human New Material Science and Technology Co., Ltd | A water-based coating combination applied on the surface of aluminum foil, which forms a layer wi... |
