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NVH Foaming Sealant


1.Introduction

(1)Excellent expandable property, can achieve designated foaming ratio at setting temperature and atmospheric pressure;

(2)After foaming, cells do not collapse, good stability;

(3)Good processing propertities, acid & alkali resistant, injected or extruded attemperature 75~85℃;

(4)Environmental friendly, low VOC, accords with RoSH 2.0 regulation,low water absorption (≤ 5% by weight), no corrosion on steel plate, steel plate bonding area ≥ 60%, no flowing or shifting phenomenon.

2.Application

(1)Starts to foam at setting temperature and atmospheric pressure, the finished products can achieve functions like sound insulation, vibration & harshness reduction, filling, water proof, protection etc;

(2)Mainly applied in Auto NVH and high speed train System, can be directional injection  (frame expansion), or extruded  into a sheet (sheet expansion).


Type

Feature

Temperature(℃)

Odor Level

Foaming rate of Bake at different temperatures for 20 minutes

NVH182Q

Yellow Pellet

145-210

3.5

High cost performance, high foaming rate, 150 ℃ 10 times, 180 ℃  22 times, 210 ℃  20 times.

NVH1568S

Yellow Pellet

145-210

3

High cost performance,  good university, 150 ℃ 10 times, 180 ℃  22 times, 210 ℃  20 times.

NVH1588S

Yellow Pellet

145-210

3

Bonding well with aluminum, 150 ℃  12 times, 180 ℃  15 times, 210 ℃  14 times.

NVH1308Q

White Pellet

140-180

3

Foaming at low temperature, 140 ℃  15 times, 170 ℃  14 times, 210 ℃  13 times.


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