Sandwich foil SFRT is a viscoelastic foil of fibre-enforced bitumen. The foil has self-adhesive glue at both sides for the application in between two constraining layers of constructional material.
夹心箔 SFRT
应用领域
行业
Workshop machines, fans, mills, printers, material handling machines, particle separators, power equipment, generators, compressors, food processing machines, hoods.
运输和车辆
Bus floors, off road vehicles, forest machines, ships and railway wagons.
办公室
Printers, sorting- and enveloping machines, loud speakers.
Architecture
Elevators, steps, engine rooms, ventilation installations, doors, floors, transportation shoots, fans.
使用方法
The pieces are cut or punched out to the desired shape and carefully pressed on to the surface to be damped. When applied, the surface must be free from oil, dirt, and dust. The pressure has to exceed 30 N/cm2 for at least five minutes.
优势
- Very good structure damping also for thick constructions of wood and metal
- Good damping for a wide frequency range
- Increase the transmission loss, especially for wood constructions
- Water-repellent
- Long service life
技术数据
Loss factor:
参见 PDF 图表。
耐温性：
-30°C to +100°C
消防类：
FMVSS 302
导热系数
Lambda=0.11W/m°C
颜色
Black
粘合剂的撕裂强度：
Approx. 15 N/cm test width
环境
Freon and PVC free
厚度
1.6 mm
Weight:
1.3 kg/m2
交付形式：
1000x1000mm (other sizes and shapes can be supplied on request)
建议
材料的形状和定位对达到最佳消音效果至关重要。Sontech 在众多工业领域的实际噪音控制项目中积累了长期经验。这些经验是对数据表中实验室数据的宝贵补充。Sontech 还可协助提供噪声控制方面的建议和声音测量，以及制造定制材料套件。
指定系统
Sandwich foil:
SF
Optimised for room temperature:
RT
订购代码的 Exampel：
SFRT
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