What is the sound insulation effect of SPD water-based foamed polyurea sound insulation board?

SPD water-based foamed polyurea sound insulation insulation board has remarkable sound insulation effect and can meet the high requirements of the new national standard for floor sound insulation. It is suitable for scenes with strict sound insulation requirements. The specific analysis is as follows:

Sound insulation performance advantages

Technological innovation support: This product uses all-water foamed polyurea foam as the core, and uses composite fiberglass mortar cloth to enhance system stability and form a multiple sound wave barrier structure. This design can effectively block the sound wave propagation path and improve the sound insulation performance.

Standard certification endorsement: The product has passed the strict testing of corporate standard Q/ZKD 019-2025, and its sound insulation index meets or exceeds the national specification requirements. At the standard review meeting in June 2025, the expert group fully affirmed its sound insulation effect and believed that its technical parameters met the 'good house' construction standards.

Engineering application verification: This material has been successfully applied and its sound insulation performance has been verified in major projects such as the Danjiangkou Dam of the South-to-North Water Diversion Project and the Wusong Military Port in Shanghai. Actual engineering data shows that its weighted sound insulation can reach 42dB, which can effectively reduce low-frequency noise below 250Hz and meet the sound insulation needs of high-noise environments such as street residences and airports.

Performance comparison advantage

Comparison with traditional materials: Compared with traditional floor sound insulation materials, SPD water-based foamed polyurea sound insulation and insulation boards have significantly improved sound insulation performance. Its full bridge design and multi-cavity structure can form a dense sound wave barrier layer, reduce resonance effects, and reduce the penetration of mid- and low-frequency noise.

Comparison with similar products: Among similar water-based foaming materials, this product uses composite fiberglass mortar cloth to enhance system stability and solve the problem of easy cracking of simple polyurea materials. At the same time, its all-water foaming process avoids the use of organic solvents and is more in line with environmental protection requirements.

Adaptability to application scenarios

Rough house scenario: Product specifications cover various thicknesses such as 600×1200×15, 600×1200×20, 600×1200×25, etc., which can be flexibly adapted to different floor structure needs. Its light weight (density is about 15-25kg/m³) facilitates construction and will not increase the floor load.

Fine decoration floor heating scenario: The product has thermal insulation properties (thermal conductivity ≤0.024W/(m·K)). When used in conjunction with the floor heating system, it can not only ensure the sound insulation effect, but also improve energy efficiency. Its temperature resistance range (-50℃ to 150℃) can meet the operation requirements of floor heating systems.

High-noise environment: This material can effectively reduce traffic noise in scenes such as street-facing residences, around airports, and near viaducts. Project cases show that after use, the indoor noise level can be reduced from 80dB to below 35dB, reaching library-level quiet standards.