Китай Лучшая цена полиуретановая литейная смола для игрушек литье
- Категория: Клеи и герметики >>>
- Поставщик: Shenzhen,Rongxingda,Polymer,Material,Co.,Ltd.
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Трекер стоимости
| Месяц | Минимальная цена | Макс. стоимость |
|---|---|---|
| Aug-15-2025 | 9.77 $* | 9.66 $* |
| Jul-15-2025 | 7.20 $* | 7.59 $* |
| Jun-15-2025 | 9.61 $* | 9.52 $* |
| May-15-2025 | 9.20 $* | 9.29 $* |
| Apr-15-2025 | 7.64 $* | 7.58 $* |
| Mar-15-2025 | 9.8 $* | 9.77 $* |
| Feb-15-2025 | 8.40 $* | 8.63 $* |
| Jan-15-2025 | 8.98 $* | 8.61 $* |
Характеристики
China best price of polyurethane casting resin for toys,crafts molding
Product Description
1.Feature:
Pu rubber is two-part compounds that vulcanizes at room temperature.With 100% polyurethane resin properties. Containing no contain solvent,after curing, it will be forming a is light yellow clear also glittering layer.it's used extensively in industry, voltage transformer potting. A/B after curing
,it has excellent weatherability and resistance to UV - irradiation.Environmentally product,when in the sunshine,it can't change the color within short time.
2.Product characteristic description
PArt A is multi isocyanate compound,part B is polybasic alcohol compound,we can adjust
the hardness,working time ,curing time and viscosity with your references,meet the different needs whatever produced by machine or manul
Composition:
Part A 1. isocyanate R-N=C=O 2.polybasic alcohol R-[O-CH2-CH]nOH
part B 1.polybasic alcohol R-[O-CH2-CH]nOH 2: Isocyanate R-N=C=O
3.Catalytic agent C8H8HgO2;CH3COOC6H5Hg
Color | part A :Colorless Transparent Liquid, PartB: Pale yellow viscous liquid | ||
Viscosity(25℃) | partA:curing agent:4000±50Mpa.s Part B : Bases:1900±50mpa.s | ||
After mixing the viscosity: 2900±50 mPa·s | |||
Density(25℃) | Part A: 1.01±0.05 g/cm3 | ||
Part B: 1.00±0.05g/cm3 | |||
Mix ratio | ‘1:1 | ’10:9 | ‘10:8 |
Working time | 19mins | 22mins | 25mins |
Curing time | 1hrs | 2hrs | 4hrs |
Characteriatical after curing : | Unit or test condition (eye- measurement ) | ||
Hardness(shoreA | 70±5 | 63±5 | 55±5 |
Apperance | Light yellow transparent surface, smooth without ripple | ||
Density After curing | 1.10±0.05g/cm3 | ||
Elongation | 200% | ISO 527 | |
Water absorption | ≤0.2% | After 30 days of immersion | |
Temperature range | ’-30℃~80℃ |
| |
Weatherability | Aging and weather test in short time,coll | oIrradiation(340nm):0.5w/m2; | |
color doesn't change to yellow.no oil on the surface,no pulverization | Relative humidity:(60~80)% | ||
Curing time: constant temperature 25 ºC,Mix ratio 1:1,working time :19mins,Curing time: 1hr . Mix ratio 10:9,working time:22mins, Curing time:2hrs. Mix ratio:10:8 working time:25mins, Curing time 4hrs.when temperature reduced,curing time will be increased;Recommended to use heating cure,temperature : 60~70℃
Storage life:12month( Store at room temperature 15℃ to 25℃ in sealed drum).Once opened
the storage life is 3 month (Recommended to use after open it as quickly as possible)
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polyurethane casting resin
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