Water-dispersible isocyanate curing agent STD 268
Introduction
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.
STD 268 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
 |
Flat matte MT-039/14179 | Introduction No. MT-039/14179 Color Self-made Surface Flat matte System Weather-resistant polyester Scope of app... |
 |
Highly chemical resistant powder coatings/metal powder coating factory | Product description MT-EC 1301 is a series of high-performance polyurethane powder coatings formulated in order to provide excellent anti-graffiti... |
 |
Powder Coatings Exclusive Use for Aluminum Profile | Features: -Excellent weatherability ,good mechanical properties -good resistance to boiling ,excellent corrosion resistance -good resistance to ... |
 |
Automotive parts powder coatings MT-A300 Series/powder coating for overseas engineering teams | Product Overview: Weather-resistant pure polyester powder coatings designed for automotive wipers, luggage racks, bumpers and other parts. Charac... |
 |
MDF (Medium Density Fiberboard) Powder Coating | Product Description This product is a powder coating suitable for medium density fiberboard substrate (MDF) coating produced by special formula an... |
Похожие товары
 |
Epimedium Extract | Продавец: Fruit Powder,Vegetable Powder | Product Name: Epimedium ExtractLatin Name: Epimedium Sagittatum Maxim.Specification: Icariin 5%, ... |
 |
Pumpkin Powder | Продавец: Fruit Powder,Vegetable Powder | Product Name: Pumpkin PowderLatin Name: Cucurbita pepo L.Used Part: FruitAppearance: yellow fine ... |
 |
Broccoli Powder | Продавец: Fruit Powder,Vegetable Powder | Product Name: Broccoli powder Latin Name: Brassica oleracea L.var.italic Planch. Used Part: Who... |
 |
Pomegranate Powder | Продавец: Fruit Powder,Vegetable Powder | Product Name: Pomegranate PowderLatin Name: Punica granatum linn.Used Part: Fruit juiceAppearance... |
 |
Orange Powder | Продавец: Fruit Powder,Vegetable Powder | Product Name: Orange PowderLatin Name: Citrus sinensisUsed Part: Fruit juiceAppearance: Light yel... |
