Envirospray 300 is a seamless monolithic insulation system which is sprayed directly on to steel, wood, masonry, tile, glass and most other surfaces. The special co-polymer bonding agent and surface primer ensures expansion and contraction parameters can be met without any adverse effect on the Envirospray 300 insulation system in the long term. Additionally, this system of application allows the insulation to mold into and seamlessly conform with designed and intended architectural shapes and curves, completely maintaining the structure’s integrity.
Envirospray 300 is world recognized as a superlative acoustic performer for the control of reverberation and sound transmission loss. It can be applied at a recommended minimum thickness of 25mm, which boasts an absorption coefficient of 75%. This amounts to 75% of all reverberation being absorbed.
Application to underside of rood, ceiling or wall makes it possible to install retrofit and renovation properties without additional cost and inconvenience or requiring access from above or behind.
Envirospray 300 applied as a monolithic seal along with its hollow interlaced fibres provides an outstanding barrier to heat and cold, as our certified test results indicate. Envirospray 300 can be successfully applied across the entire natural temperature spectrum and is suited to rooms requiring rigid and specific environmental control. It’s primary benefit is to substantially reduce cooling and heating costs for any structure in which it is applied.
Envirospray 300 applied at 30mm (1 1/4th”) to the underside of metal deck roofs reduces rain noise up to 17db, ensuring ease of communication and creating a quieter environment conductive to higher productivity without external noise interference.
We guarantee our product for a full 10 years from the date of installation. Of note is the fact that several structures we have applied this system to in Australia have the product fully functional 30 years after installation, with absolutely no maintenance required during that whole time!
Envirospray 300 will alleviate all condensation due to the system’s unique ability to separate hot and cold surfaces which are susceptible to condensation.
Noise Reduction Coefficient (NRC) Field Tests
NRC:
Acoustic Test, Curie Hall, University of Western Australia
Reduction of Reverberation Time NATA Report No. 25141199
References: Environmental Statement Report for the Government of Australia Envirospray 300 Rain Noise Reduction Test, Acoustic Dynamics Pvt Ltd Density Reports: Curtain University NATA Report 2514 - 1199
| Thickness | 125Hz | 250Hz | 500Hz | 1000Hz | 2000Hz | 4000Hz | NRC |
|---|---|---|---|---|---|---|---|
| 25mm | 0.08 | 0.29 | 0.75 | 0.98 | 0.93 | 0.96 | 0.75 |
| 38mm | 0.15 | 0.51 | 0.95 | 1.06 | 0.99 | 0.98 | 0.90 |
Note: Low Frequency Absorption Improves with Thickness of Application
Source: 2422 CCS
Complies to: ASTM C 423
(K Value) : .029 W /M.K.
(R Value) : .0862 (at 25mm) 4.89 BTU/ft2h0f
(Density) : 70-96 kg/m3 (Note: fully dried 20 days drying time)
NRC Value (Sound Absorption) : 25mm = 0.75 or 75%
| Density (lb/ ft3) | Density (kg/m3) | K Value |
|---|---|---|
| 3.203 | 51.307 | 0.26 |
| 3.56 | 57.026 | 0.24 |
| 4.248 | 68.047 | 0.21 |
| 4.425 | 70.882 | 0.22 |
Source: Institute for Research. Inc. (Houston, Texas)
Method: ASTM C-177 (Guarded Hot Plate)
Fire test: 0 spread of flame
References:
| 847850 | SE: LN | Wait Aid |
| 7411478 | FW | AWTA |
| 7411479 | FW | AWTA |
| 7417051 | FW | AWTA |
| 7426802 | FW | AWTA |
| FNE 6688 FNE 0025C FNE 0207C FCO 0749 |
CSIRO | Classification Class 1 BS 476 Part 6 AS 1530.4 (ASTM E 119) |
References:
| LFO 113 | CSIRO/459 |
|---|---|
| Classified | ASTM E 1042 |
| Department of Science Services of Thailand | |
| ASTM | C 423 |
| ASTM | E 90 |
| ASTM | C 687 |
| ASTM | C 518 (complies) |
| ASTM | C 177 |