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1.Product Introduction
SPD water-based foam polyurea sound insulation board adopts a production line composite process. While foaming with a fixed thickness online, it also introduces upper and lower double-sided fiberglass non-woven mortar cloth, which is produced in one go.
μ m level closed cell structure, microporous damping
Thermosetting foam, B1 flame retardant
Full water foaming, environmentally friendly
2. Product Performance Indicators
| Project | Performance |
| Thermal conductivity | ≤0.026w/k·m |
| Improvement in Impact Sound △ Lw | ≥20dB |
| Combustibility | B1 level(d0S2t1) |
| Environmental performance | Full water foaming; Hexabromocyclododecane; VOC is zero |
| Specification ruler | 600×1200×20mm |
1. Suitable for delivery of prefabricated houses without underfloor heating
System Advantage
Good sound insulation effect: easy to achieve high standard sound insulation of ≤ 60dB, even<55dB (green building three-star standard);
The sound insulation board is fully adhered to the floor and protective layer, without any cavities, and the protective layer has no potential for cracking;
Easy construction: fast, short construction period, and economically reasonable cost.
2. Suitable For Fine Decoration, With Floor Heating Assembly Installation
Note: 3 and 4 represent the completion of industrial and chemical composite processing, which is an integrated board for insulation, sound insulation, and underfloor heating
System Advantage
Reserve installation groove diameter for underfloor heating pipelines, which is fast, effective, and safe;
Eliminate the construction process of 30mm cement-based self leveling or 40mm fine aggregate concrete protective layer, shorten the construction period, and achieve assembly;
Improve the speed and efficiency of heat release, while avoiding the impact of protective layer cracking caused by geothermal heat on the stability of the decoration layer.
SPD water-based foam polyurea sound insulation board and floor sound insulation system
Design and Installation Guidelines
（Q/ZKD019-2025）
1、 SPD water-based foam polyurea sound insulation board (referred to as SPD polyurea sound insulation board)
1. Product Structure
At the same time as online thickness foaming, the upper and lower double-sided fiberglass non-woven mortar cloth is introduced for one-time composite molding.
2. Technical principles
This product is a combination of "acoustics", "thermology", "fire engineering", "material mechanics", "environmental protection" and other disciplines and elements, making full use of the functions of polyurea foam with "micropore damping sound insulation" and "elastic deformation sound absorption", and using all water foaming technology to produce composite panels with high sound insulation (impact sound) performance..
3. Technical advantages
(1) The efficiency of sound insulation: A 20mm thick board can provide an improvement of over 20dB in floor impact sound, which is more than 40% higher than traditional floor insulation materials in terms of sound insulation performance.
(2) Stability of floor system construction: The upper and lower surfaces of SPD soundproof insulation board are attached with fiberglass non-woven mortar cloth, providing good bonding effect between the three layers of soundproof insulation layer and the overlying protective layer of the floor, avoiding hollowing and cracking of traditional floor engineering.
(3) Green and environmentally friendly: Full water foaming, no presence of chlorofluorocarbon molecules, in line with national environmental policies, avoiding the impact of organic matter on indoor air.
Traditional insulation and sound insulation materials release various non environmentally friendly gases.
(4) Fire safety guarantee: Water based foamed polyurea belongs to the "thermosetting" organic insulation material, with a combustion grade of non combustible B1 and no melting droplets. Its smoke density is low (<S2) and smoke toxicity is low (<t1), providing safety guarantee for indoor fire prevention.
Traditional "thermoplastic" materials are prone to fire accidents and produce large amounts of smoke and toxicity.
(5) Excellent energy-saving, waterproof, moisture-proof and mildew resistance performance: water-based foamed polyurea is a closed cell foam with excellent thermal insulation performance, and its heat resistance, cold resistance, acid resistance, alkali resistance, water resistance and mildew resistance indexes exceed other sound insulation materials.
Once traditional water absorbing insulation materials absorb water, they are extremely difficult to evaporate indoors and are prone to mold growth.
4. Technical Performance Indicators (Q/ZKD019-2025)
type | unit | Reference Value | ||||
CORE | density | kg/m3 | 35~45 | |||
Thermal conductivity (average temperature 25 ℃) | W/（m·K） | ≤0.026 | ||||
Water absorption rate | % | ≤3 | ||||
Improvement in Impact Sound | The thickness is 15mm | △LW;dB | ≥15 | |||
The thickness is 20mm | ≥20 | |||||
The thickness is 25mm | ≥25 | |||||
dimensional stability | 80℃,48h | % | ≤1.0 | |||
-30℃， 48h | ||||||
compressive strength | kPa | ≥150 | ||||
Tensile strength perpendicular to the plane surface direction | kPa | ≥100，The damage occurred in the insulation material; | ||||
compression creep （23℃，4KPa，168h） | % | ≤2 | ||||
compression deformation | mm | ≤2 | ||||
combustion performance | grade | level | not less than B1 | |||
Smoke production performance level | S2 | |||||
Burning droplets/particle grade | d0 | |||||
Smoke toxicity level | not less than t1 | |||||
environmentally | Content of chlorofluorocarbon foaming agent | mg/kg | 0 | |||
Hexabromocyclododecane content | mg/kg | 0 | ||||
2、 Construction and Installation of SPD Soundproofing (Insulation) Board Floor Soundproofing System
✱ Sound insulation system (1) (applicable to the delivery of prefabricated rooms)
1. System Construction Diagram:
Construction diagram of floor sound insulation and thermal insulation system (I)
1-120 thick concrete base for floor slabs; 2-15 thick leveling and bonding layer; 3-15/20/25 thick SPD water-based foam polyurea sound insulation board; 4-30 thick cement-based self leveling (or 40 thick fine aggregate concrete protective layer);
5- Decorative surface layer; 6-Wall root isolation sheet.
2. Process flow:
3. Construction instructions:
Cleaning the floor:
Clean up the residue and dust on the floor, remove the protrusions and burrs of the original cast-in-place floor slab, and ensure the cleanliness and basic flatness of the original floor;
Paste wall root isolation sheet:
Stick isolation strips around the wall base and at the separation point of the door opening. The function of the isolation sheet is to isolate the impact sound from being transmitted through the wall structure to the lower room, ensuring the integrity and effectiveness of the sound insulation project; The height of the isolation sheet is about 70mm (based on the upper surface above the protective layer), and the thickness and material are cut from the actual SPD soundproof board and its corner materials used;
Apply the leveling adhesive layer and simultaneously press the SPD soundproof board:
Adopting the process of chiseling and wiping at the same time, apply the leveling layer, and press the SPD soundproof board (tight fitting), paying attention to the flatness of the board surface (≤ 3mm);
Adhesive tape for board seams:
To prevent the leakage of protective slurry into the sound insulation layer (board joint), it is necessary to seal and protect the board joint before the construction of the protective layer. The width of the adhesive tape should be ≥ 40mm, and it is required to be compacted and pressed tightly;
Construction of protective layer:
The construction of the protective layer can be carried out using a 30mm thick layer of cement-based self leveling or a 40mm thick layer of fine aggregate concrete (embedded with steel wire mesh), and protection and maintenance work should be done after the construction is completed.
Sound insulation system (II) (applicable to fully furnished underfloor heating rooms)
1. System Construction Diagram:
Construction diagram of floor sound insulation and thermal insulation system (II)
1-120 thick concrete base for floor slabs; 2-15 thick leveling and bonding layer; 3-15mm thick SPD water-based foam polyurea sound insulation board; 4-38 thick slotted foam ceramic board; 5-5 thick thin adhesive; 6- Decorative flooring (tiles, etc.); 7-Wall root isolation sheet. (Note: 3&4 are factory processed composite panels, which are integrated insulation, sound insulation, and underfloor heating panels, abbreviated as "SPD soundproof underfloor heating panels")
2. Process flow:
3. Construction instructions:
Cleaning the floor:
Clean up the residue and dust on the floor, remove the protrusions and burrs of the original cast-in-place floor slab, and ensure the cleanliness and basic flatness of the original floor;
Paste wall root isolation sheet:
Stick isolation strips around the wall base and at the separation point of the door opening. The function of the isolation sheet is to isolate the impact sound from being transmitted through the wall structure to the lower room, ensuring the integrity and effectiveness of the sound insulation project; The height of the isolation sheet is about 70mm (based on the upper surface above the protective layer), and the thickness and material are cut from the actual SPD soundproof board and its corner materials used;
Auxiliary SPD soundproof floor heating board:
Use foaming agent as adhesive to attach SPD soundproof floor heating board, pay attention to controlling the flatness of the dense joint to ≤ 3mm, as shown in the following figure
Installation of underfloor heating pipes: Insert the underfloor heating pipes according to the underfloor heating groove line, as shown in the following figure
Decoration layer construction:
The decorative layer is divided into wooden flooring and ceramic tiles. Wood floor installation: attach the foam layer and directly install the wood floor; Ceramic tile installation: Special adhesive is used to attach ceramic tiles.
3、 Design Drawing
1. Specification selection and technical parameters:
Selection of SPD soundproof board thickness | Floor sound insulation index | Floor heat transfer coefficient (K value) | Protective Layer |
15mm | ≤65dB | 1.209W/k.m | 30 thick C20 grade self leveling platform, or 40 thick C20 grade fine aggregate concrete (embedded with steel wire mesh) |
20mm | ≤60dB | 0.981W/k.m | |
25mm | ≤55dB | 0.825W/k.m |
2. Drawing instructions:
a、 Unfinished building floor (from top to bottom): decorative layer (wooden floor/ceramic tile), 30 thick C20 grade self leveling (or 40 thick C20 grade with steel wire mesh fine aggregate concrete), 15/20/25 thick SPD water-based foam polyurea sound insulation board, 15 thick leveling bonding layer, 120 thick structural floor support board, 20 thick leveling layer, white coating layer.
b、 Fine decoration of underfloor heating flooring (from top to bottom): decorative layer (wooden floor/ceramic tile), 15+38 thick SPD soundproof underfloor heating board (embedded with geothermal pipes), 120 thick structural floor support board, leveling layer after 20, white paint.
1.Product Introduction
SPD water-based foam polyurea sound insulation board adopts a production line composite process. While foaming with a fixed thickness online, it also introduces upper and lower double-sided fiberglass non-woven mortar cloth, which is produced in one go.
μ m level closed cell structure, microporous damping
Thermosetting foam, B1 flame retardant
Full water foaming, environmentally friendly
2. Product Performance Indicators
| Project | Performance |
| Thermal conductivity | ≤0.026w/k·m |
| Improvement in Impact Sound △ Lw | ≥20dB |
| Combustibility | B1 level(d0S2t1) |
| Environmental performance | Full water foaming; Hexabromocyclododecane; VOC is zero |
| Specification ruler | 600×1200×20mm |
1. Suitable for delivery of prefabricated houses without underfloor heating
System Advantage
Good sound insulation effect: easy to achieve high standard sound insulation of ≤ 60dB, even<55dB (green building three-star standard);
The sound insulation board is fully adhered to the floor and protective layer, without any cavities, and the protective layer has no potential for cracking;
Easy construction: fast, short construction period, and economically reasonable cost.
2. Suitable For Fine Decoration, With Floor Heating Assembly Installation
Note: 3 and 4 represent the completion of industrial and chemical composite processing, which is an integrated board for insulation, sound insulation, and underfloor heating
System Advantage
Reserve installation groove diameter for underfloor heating pipelines, which is fast, effective, and safe;
Eliminate the construction process of 30mm cement-based self leveling or 40mm fine aggregate concrete protective layer, shorten the construction period, and achieve assembly;
Improve the speed and efficiency of heat release, while avoiding the impact of protective layer cracking caused by geothermal heat on the stability of the decoration layer.
SPD water-based foam polyurea sound insulation board and floor sound insulation system
Design and Installation Guidelines
（Q/ZKD019-2025）
1、 SPD water-based foam polyurea sound insulation board (referred to as SPD polyurea sound insulation board)
1. Product Structure
At the same time as online thickness foaming, the upper and lower double-sided fiberglass non-woven mortar cloth is introduced for one-time composite molding.
2. Technical principles
This product is a combination of "acoustics", "thermology", "fire engineering", "material mechanics", "environmental protection" and other disciplines and elements, making full use of the functions of polyurea foam with "micropore damping sound insulation" and "elastic deformation sound absorption", and using all water foaming technology to produce composite panels with high sound insulation (impact sound) performance..
3. Technical advantages
(1) The efficiency of sound insulation: A 20mm thick board can provide an improvement of over 20dB in floor impact sound, which is more than 40% higher than traditional floor insulation materials in terms of sound insulation performance.
(2) Stability of floor system construction: The upper and lower surfaces of SPD soundproof insulation board are attached with fiberglass non-woven mortar cloth, providing good bonding effect between the three layers of soundproof insulation layer and the overlying protective layer of the floor, avoiding hollowing and cracking of traditional floor engineering.
(3) Green and environmentally friendly: Full water foaming, no presence of chlorofluorocarbon molecules, in line with national environmental policies, avoiding the impact of organic matter on indoor air.
Traditional insulation and sound insulation materials release various non environmentally friendly gases.
(4) Fire safety guarantee: Water based foamed polyurea belongs to the "thermosetting" organic insulation material, with a combustion grade of non combustible B1 and no melting droplets. Its smoke density is low (<S2) and smoke toxicity is low (<t1), providing safety guarantee for indoor fire prevention.
Traditional "thermoplastic" materials are prone to fire accidents and produce large amounts of smoke and toxicity.
(5) Excellent energy-saving, waterproof, moisture-proof and mildew resistance performance: water-based foamed polyurea is a closed cell foam with excellent thermal insulation performance, and its heat resistance, cold resistance, acid resistance, alkali resistance, water resistance and mildew resistance indexes exceed other sound insulation materials.
Once traditional water absorbing insulation materials absorb water, they are extremely difficult to evaporate indoors and are prone to mold growth.
4. Technical Performance Indicators (Q/ZKD019-2025)
type | unit | Reference Value | ||||
CORE | density | kg/m3 | 35~45 | |||
Thermal conductivity (average temperature 25 ℃) | W/（m·K） | ≤0.026 | ||||
Water absorption rate | % | ≤3 | ||||
Improvement in Impact Sound | The thickness is 15mm | △LW;dB | ≥15 | |||
The thickness is 20mm | ≥20 | |||||
The thickness is 25mm | ≥25 | |||||
dimensional stability | 80℃,48h | % | ≤1.0 | |||
-30℃， 48h | ||||||
compressive strength | kPa | ≥150 | ||||
Tensile strength perpendicular to the plane surface direction | kPa | ≥100，The damage occurred in the insulation material; | ||||
compression creep （23℃，4KPa，168h） | % | ≤2 | ||||
compression deformation | mm | ≤2 | ||||
combustion performance | grade | level | not less than B1 | |||
Smoke production performance level | S2 | |||||
Burning droplets/particle grade | d0 | |||||
Smoke toxicity level | not less than t1 | |||||
environmentally | Content of chlorofluorocarbon foaming agent | mg/kg | 0 | |||
Hexabromocyclododecane content | mg/kg | 0 | ||||
2、 Construction and Installation of SPD Soundproofing (Insulation) Board Floor Soundproofing System
✱ Sound insulation system (1) (applicable to the delivery of prefabricated rooms)
1. System Construction Diagram:
Construction diagram of floor sound insulation and thermal insulation system (I)
1-120 thick concrete base for floor slabs; 2-15 thick leveling and bonding layer; 3-15/20/25 thick SPD water-based foam polyurea sound insulation board; 4-30 thick cement-based self leveling (or 40 thick fine aggregate concrete protective layer);
5- Decorative surface layer; 6-Wall root isolation sheet.
2. Process flow:
3. Construction instructions:
Cleaning the floor:
Clean up the residue and dust on the floor, remove the protrusions and burrs of the original cast-in-place floor slab, and ensure the cleanliness and basic flatness of the original floor;
Paste wall root isolation sheet:
Stick isolation strips around the wall base and at the separation point of the door opening. The function of the isolation sheet is to isolate the impact sound from being transmitted through the wall structure to the lower room, ensuring the integrity and effectiveness of the sound insulation project; The height of the isolation sheet is about 70mm (based on the upper surface above the protective layer), and the thickness and material are cut from the actual SPD soundproof board and its corner materials used;
Apply the leveling adhesive layer and simultaneously press the SPD soundproof board:
Adopting the process of chiseling and wiping at the same time, apply the leveling layer, and press the SPD soundproof board (tight fitting), paying attention to the flatness of the board surface (≤ 3mm);
Adhesive tape for board seams:
To prevent the leakage of protective slurry into the sound insulation layer (board joint), it is necessary to seal and protect the board joint before the construction of the protective layer. The width of the adhesive tape should be ≥ 40mm, and it is required to be compacted and pressed tightly;
Construction of protective layer:
The construction of the protective layer can be carried out using a 30mm thick layer of cement-based self leveling or a 40mm thick layer of fine aggregate concrete (embedded with steel wire mesh), and protection and maintenance work should be done after the construction is completed.
Sound insulation system (II) (applicable to fully furnished underfloor heating rooms)
1. System Construction Diagram:
Construction diagram of floor sound insulation and thermal insulation system (II)
1-120 thick concrete base for floor slabs; 2-15 thick leveling and bonding layer; 3-15mm thick SPD water-based foam polyurea sound insulation board; 4-38 thick slotted foam ceramic board; 5-5 thick thin adhesive; 6- Decorative flooring (tiles, etc.); 7-Wall root isolation sheet. (Note: 3&4 are factory processed composite panels, which are integrated insulation, sound insulation, and underfloor heating panels, abbreviated as "SPD soundproof underfloor heating panels")
2. Process flow:
3. Construction instructions:
Cleaning the floor:
Clean up the residue and dust on the floor, remove the protrusions and burrs of the original cast-in-place floor slab, and ensure the cleanliness and basic flatness of the original floor;
Paste wall root isolation sheet:
Stick isolation strips around the wall base and at the separation point of the door opening. The function of the isolation sheet is to isolate the impact sound from being transmitted through the wall structure to the lower room, ensuring the integrity and effectiveness of the sound insulation project; The height of the isolation sheet is about 70mm (based on the upper surface above the protective layer), and the thickness and material are cut from the actual SPD soundproof board and its corner materials used;
Auxiliary SPD soundproof floor heating board:
Use foaming agent as adhesive to attach SPD soundproof floor heating board, pay attention to controlling the flatness of the dense joint to ≤ 3mm, as shown in the following figure
Installation of underfloor heating pipes: Insert the underfloor heating pipes according to the underfloor heating groove line, as shown in the following figure
Decoration layer construction:
The decorative layer is divided into wooden flooring and ceramic tiles. Wood floor installation: attach the foam layer and directly install the wood floor; Ceramic tile installation: Special adhesive is used to attach ceramic tiles.
3、 Design Drawing
1. Specification selection and technical parameters:
Selection of SPD soundproof board thickness | Floor sound insulation index | Floor heat transfer coefficient (K value) | Protective Layer |
15mm | ≤65dB | 1.209W/k.m | 30 thick C20 grade self leveling platform, or 40 thick C20 grade fine aggregate concrete (embedded with steel wire mesh) |
20mm | ≤60dB | 0.981W/k.m | |
25mm | ≤55dB | 0.825W/k.m |
2. Drawing instructions:
a、 Unfinished building floor (from top to bottom): decorative layer (wooden floor/ceramic tile), 30 thick C20 grade self leveling (or 40 thick C20 grade with steel wire mesh fine aggregate concrete), 15/20/25 thick SPD water-based foam polyurea sound insulation board, 15 thick leveling bonding layer, 120 thick structural floor support board, 20 thick leveling layer, white coating layer.
b、 Fine decoration of underfloor heating flooring (from top to bottom): decorative layer (wooden floor/ceramic tile), 15+38 thick SPD soundproof underfloor heating board (embedded with geothermal pipes), 120 thick structural floor support board, leveling layer after 20, white paint.