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Bayfill NV 100 acoustic cavity-filling foam is a two-component polyurethane system designed to fill and acoustically seal cavities of automobile body shells. The Bayfill NV 100 acoustic cavity-filling foam system can be processed on both high- and low-pressure equipment. It is poured at a 1:1 ratio, providing excellent mix even on low-pressure equipment and an excellent shot-to-shot repeatability. Comparable low concentrations of residual MDI and low foam surface temperatures allow for safer dispense operations. As with any product, use of the Bayfill NV 100 acoustic cavity-filling foam system in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability.
The Bayfill NV 100 acoustic cavity-filling foam system is supplied as two components. Component A is a modified polymeric diphenylmethane diisocyanate blend. Component B is a polyether polyol system.
| Главная Информация | |
|---|
| Используется | - Пена
- Применение в автомобильной области
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| Механические | Номинальное значение | Единица измерения | Метод испытания |
|---|
| Прочность на сжатие (10% Strain) | 0.0269 | MPa | ASTM D1621 |
| Воспламеняемость | Номинальное значение | Единица измерения | Метод испытания |
|---|
| Скорость горения | 71 | mm/min | FMVSS 302 |
| Термокомплект | Номинальное значение | Единица измерения | Метод испытания |
|---|
| Компоненты термокомплекта | | | |
| Component a | Mix Ratio by Weight: 1.0, Mix Ratio by Volume: 1.0 | | |
| Component B | Mixing ratio by weight: 1.0, mixing ratio by capacity: 1.2 | | |
| Срок годности (25°C) | 26 | wk | |
| Дополнительная информация | Номинальное значение | Единица измерения | Метод испытания |
|---|
| Стабильность размеров, изменение громкости | | | MSCD 643 |
| 38°C 1 | -3.5 | % | MSCD 643 |
| 120°C 2 | -0.060 | % | MSCD 643 |
| 24 hr
: 120°C | -1.7 | % | MSCD 643 |
| Стабильность размеров, изменение веса 3 | 0.91 | % | MSCD 643 |
| Потеря веса | | % | MSCD 643 |
| Тепловая потеря веса-
24 часа в сутки
(80 °C) | | % | MSCD 643 |
| Part A
Type: Isocyanate
Appearance: Dark brown to black liquid
Specific Gravity @ 25°C: 1.24
Viscosity @25°C: 700 mPa-s
Flash Point PMCC: 213°C
Part B
Type: Polyol
Appearance: Opaque white liquid
Specific Gravity @ 25°C: 1.04
Viscosity @25°C: 2050 mPa-s
Flash Point PMCC: 115°C
Material Temperature: 140°FMachine Reactivity at 35°C
Gel Time: <3 sec
Rise Time: <6 sec
Tack-Free Time: <9 sec
Free-Rise Density: 1.6 lb/ft³
Foam Surface Exotherm: <58°CFoam Core Exotherm: <110°CVolumetric Expansion: 4500% |
| Примечание |
|---|
| 1 . | 168 hr, 100% RH |
| 2 . | 15 min, 20 min after foaming |
| 3 . | during humid aged test |
