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
| Universal textured black wrinkle powder coating for indoor and outdoor use | Product parameters Name: Powder coating Color: Black Color number: RAL9005 Performance: Customized according to demand Usage: Electrostatic sp... | |
| Modified acrylic copolymer emulsion STD-20135 | Introduction STD 20135 is a modified acrylic copolymer emulsion with excellent substrate adhesion and excellent sealing properties, especially sui... | |
| Car powder Coating/supplier powder coating | Brief description Made with saturated polyester resin and curing agent such as TGIC or HAA as the main base material. Features Excellent mechani... | |
| Antimicrobial Powder Coatings | Product performance: long term Up to 4N- 5N (99.99-99 .999%) Application: kitchen utensils: dishwasher, stove, cupboard, etc Household applian... | |
| White Powder Varnish Vecodur VPPA White | Product Information – VECODUR VPPA White AttributeDetails Product Form Powder Description Powder for electrostatic applica... |
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... |













