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Акриловый полиол для полиуретановых покрытий ETERAC 7303-4-X-60


Акриловый полиол ETERAC 7303-4-X-60 - гидроксил акриловый сополимер, разработанный для термо отверждения в камере изоцианатами. Эта смола прежде всего разработана, для двухупаковочных систем со следующими особенностями:
Быстрое высыхание
Превосходная долговечность покрытия
Превосходная химическая стойкость
Превосходная адгезия
Превосходная растекаемость и высокий глянец

Используется для покрытий по металлу и пластику

СПЕЦИФИКАЦИЯ
Внешний вид Бесцветная, прозрачная жидкость
Цветность по Гарднеру 25С°/ J2 1/3-4
Вязкость по Гарднеру  при 25С° Z3-Z5
Содержание сухого вещества, % (150C° x 30mins) 60±1
Кислотность (mg KOH/g, solid) 2-6
Гидроксильное число 100±5
Эквивалент вес в растворе 560
Растворитель Ксилол

ПРИМЕРНАЯ РЕЦЕПТУРА

I. Прозрачное финишное покрытие
A. Компонент                                                                                               Объёмных частей
ETERAC 7303-4-X-60                                                                       67.0
Ксилол                                                                                                       16.0
Бутил ацетат                                                                                             16.0
BYK 301 (10% in Toluol)                                                                        1.0  
Всего                                                                                                         100.0
B. Компонент                                                                                               Объёмных частей
Desmodur N-75 (Байер)                                                                          55.0
Толуол                                                                                                      20.0
Бутил Ацетат                                                                                           25.0
Всего                                                                                                         100.0
Коэффициент формул            A/B=3/1  NCO/OH=1/1

Растворитель                                                                                       Объёмных частей
Ксилол                                                                                                       30.0
Толуол                                                                                                      35.0
Solvesso #100                                                                                          10.0
Этил Ацетат                                                                                             10.0
Целлозольв ацетат                                                                                  15.0 
                                                                                                                             100.0

II. Белая эмаль
A. Component                                                                                              PBW
ETERAC 7303-4-X-60                                                                         64.0
TiO2 (R-900)                                                                                                64.0
Ксилол                                                                                                         40.0
Диспергирование
ETERAC 7303-4-X-60                                                                         16.0
Ксилол                                                                                                         14.0
BYK 301 (10% in Toluol)                                                                          2.0
Total                                                                                                             200.0

B. Component                                                                                               PBW
Desmodur N-75                                                                                          109.5
Toluol                                                                                                          54.0
Butyl Acetate                                                                                             54.0   
Total                                                                                                             217.5
Formulation Ratio       A/B=5/1 NCO/OH=1/1
Thinner                                                                                                  PBW
Xylol                                                                                                          30.0
Toluol                                                                                                        35.0
Solvesso #100                                                                                          10.0
Ethyl Acetate                                                                                            10.0
Cellosolve Acetate                                                                                  15.0   
Total                                                                                                        100.0



Показатели

Белая эмаль:  Распыление Bonderite #100 на металл
Сухая пленка - 30-35μ
Термосушка 60С° x 30 мин или 3 дня при 25С°
Время высыхания
На отлип (min.)                                                 10
Полное (min.)                                                    35
Pot Life (Ford Cup #4, sec.)                           
Initial 19
  3 ч.  26
  6 ч.  40
  18 ч. гель
Твердость (Карандаш) H+
Глянец (20°/60°)           90
Удар (1/2 inch, 500gr.) 45
Адгезия                         100/100
Стойкость к: Ксилол (25С°/dip/24hrs) Ок Спирты (25С°/dip/24hrs) Ок Бензин (25С°/dip/24hrs) Ок