SikaDamp®-108
SikaDamp®-108 is a standard heavy layer, flexible bitumen foil for sound deadening and sound damping applications on steel substrate. The bitumen heavy foil is filled with mineral material and polymers. SikaDamp®-108 is covered with a water based antiblocking agent and equipped with a polyamid hot melt adhesive. The odor of SikaDamp®-108 is negligible in household appliances in operation up to 80 °C. At higher temperatures, a slight bitumen odor may be perceptible temporarily.
- Sound deadener
- Sound damping
- Bitumen heavy foil covered with antiblocking agent
- Heat fusible
- Customized die-cut parts or sheets
PRODUCT BENEFITS
- Sound deadener
- Sound damping
- Bitumen heavy foil covered with antiblocking agent
- Heat fusible
- Customized die-cut parts or sheets
Areas of Application
SikaDamp®-108 was initially developed for the noise damping in the field of household appliances, such as dishwashers (steel tub), washing machine, tumble dryer and small appliances. It can as well be used in other industrial fields, where damping with high density bitumen foils is required.This product is suitable for experienced professional users only. Tests with actual substrates and conditions have to be performed ensuring adhesion and material compatibility.
Packaging
Sika is delivering the finished and die-cut products on returnable steel pallets, whereas the parts are placed in the correct position for further processing.
As alternative wooden one-way packaging, multiuse grid boxes and card boxes would be available.
Product Details
| Chemical base | Polymer modified bitumen, mineral filler | |
| Color (CQP001-1) | mastic layer | Black |
| Density | mastic layer | 1.9 g/cm³ |
| Total thickness (DIN ISO 1849-1/2) | 2 ─ 4 mm | |
| Area weight (CQP008-4) | depending on thickness | 3.8 ─ 7.6 kg/m² |
| Application temperature | for 30 seconds | 115 °C |
| Loss factor (ISO 6721-3) | see diagram 1 | |
| Flammability (DIN 75200) | 100 mm/min | |
| Shelf life | 4 month |
| CQP = Corporate Quality Procedure |
Application
Surface preparation
Surfaces must be clean, dry and free from grease, oil, water and dust.
Application
During application, the hot melt adhesive must reach 115 °C for a period of at least 30 seconds.
It is common practice in the industry to heat the bitumen material from the bitumen side in order to soften the bitumen material first and to achieve a full surface contact of the mat before the hot melt adhesive is activated.
For information regarding typical loss factors, see diagram 1. The layer structure is shown in figure 1.
Diagram 1: loss factor SikaDamp®-108 at 200 Hz
Figure 1: 1) Antiblocking agent, 2) Bitumen heavy foil, 3) Hot melt
STORAGE CONDITIONS
SikaDamp®-108 has to be stored dry and protected from UV light. The storage temperature is between 0 °C and 35 °C. Consider, that at temperature below 15 °C the bitumen starts to get brittle and can break. Therefore, if products are sourced from a cold storage it must be handled with care.
Ensure that the product has reached the defined application temperature before it is applied. This might be realized by storing the parts for 24 to 48 hours prior application at the assembly line.
Note: Storage outside of standard conditions can affect the shelf life.