Double Sided Non Woven Tape designed for bonding to synthetic foams. Modified Acrylic adhesive with an integral (removable) release liner. The blue/green liner weight is 100gsm and offers easier removal. The product has high initial tack and good elevated temperature, plasticiser and shear resistance.
Liner Type: Blue/Green glassine
| Physical Property method |
Specification |
Test |
| Adhesion to Pyrosorb-S |
1000 N/m (Minimum) |
ATM.1-PSTC.1 |
| Adhesion to Steel |
1000 N/m (Minimum) |
ATM.1-PSTC.1 |
| Adhesion to other substrates |
Available on request. |
|
Application
- This is a pressure sensitive adhesive.
- Pressure may be necessary to achieve a bond to the substrate.
- The substrate should be clean, dry and free of grease and oil. The foam and tape should be dry.
- Minimum product application temperature: + 10C
- Optimum product application temperature: + 20C
Working Restrictions
- Product must be kept dry in use.
- Maximum Temperature - Unstressed: + 100C
- Maximum Temperature - Stressed: + 80C
- Maximum Life Capability: + 60C
- Minimum Temperature: - 10C
Acoustic Performance
ASTM and BS EN 20354 (previously BS3638 : 1963) are both standard tests for measuring
absorption co-efficients. ASTM C384 is a laboratory scale test measuring normal incidence co-
efficients. Both methods give an indication of the potential performance of the material under the
test. Whilst the latter reverberation room method may prove more relevant in most practical
situations, neither test can predict overall performance in a real application.
Absorption co-efficients : ASTM C384
| Thickness |
Frequency (Hz) |
| (mms) |
125 |
250 |
500 |
1000 |
2000 |
4000 |
| 12 |
|
0.04 |
0.14 |
0.15 |
0.29 |
0.54 |
| 25 |
|
0.07 |
0.14 |
0.32 |
0.80 |
0.71 |
| 50 |
0.11 |
0.11 |
0.50 |
0.86 |
0.84 |
0.90 |
Absorption Co-efficients : BS EN 20354 (BS3638) : 1963
| Thickness |
Frequency (Hz) |
| (mms) |
63 |
125 |
250 |
500 |
1000 |
2000 |
4000 |
| 12 |
|
0.06 |
0.09 |
0.18 |
0.29 |
0.38 |
0.58 |
| 25 |
|
0.09 |
0.22 |
0.38 |
0.52 |
0.63 |
0.73 |
| 50 |
0.05 |
0.24 |
0.47 |
0.75 |
0.84 |
0.87 |
1.02 |
| 100 |
0.12 |
0.41 |
1.01 |
1.10 |
0.96 |
1.03 |
1.06 |
PYROSORB-S is also available in a profiled form (also known as egg-box or convoluted). The acoustic absorption of these products is better than the equivalent flat thickness in the frequency range 250 to 1000 Hz
Absorption Co-efficients : BS EN 20354 (BS3638) : 1963
| Thickness before Profiling (***) |
Frequency (Hz) |
| (mms) |
63 |
125 |
250 |
500 |
1000 |
2000 |
4000 |
| 25 (*) |
0.01 |
0.06 |
0.12 |
0.22 |
0.35 |
0.47 |
0.58 |
| 25 (**) |
0.01 |
0.05 |
0.12 |
0.21 |
0.32 |
0.39 |
0.51 |
| 50 (*) |
0.02 |
0.10 |
0.25 |
0.44 |
0.61 |
0.70 |
0.72 |
| 50 (**) |
0.02 |
0.10 |
0.23 |
0.42 |
0.56 |
0.60 |
0.70 |
(*) Profile side away from the noise source.
(**) Profile side towards the noise source.
(***) The actual sizes tested were:
- 25mm profiled to 2mm base 21mm rise
- 50mm profiled to 7mm base 36mm rise
Thermal Properties
Test method: BS874 1973 and AMD3006 8/79. Guarded hot plate method.
Results: Thermal Conductivity: 0.048 - 0.051 Wm-1 K-1
Conditions
| Thickness |
26.0mm |
| Density |
94.7 kgm3 |
| Mean Cold Face Temp |
0.0° C |
| Mean Hot Face Temp |
24.0° C |
| Ambient RH |
48 - 51 % |
| Ambient Temp |
22 - 23° C |
Thermal Conductance or Thermal Transmittance
From the above result we can calculate U Values :
| 12mm |
4.17 |
Wm-2 K-1 |
| 25mm |
1.92 |
Wm-2 K-1 |
| 50mm |
1.00 |
Wm-2 K-1 |
Reference
Salford University Report TT83/119
Warrington Research Report 26992
REF : C070390 |
