Non-dismantling formwork insulation integrated panel

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Product details

LONGER Insulation Integral Board with Permanent Formwork (Focus on Fire Safety & Cost-Saving)

I. Product Introduction

LONGER Insulation Integral Board with Permanent Formwork is a high-performance, cost-effective external wall building material that integratespermanent formwork, thermal insulation and Class A fire resistance — its core advantages lie in superior fire safety, significant construction period shortening and substantial cost reduction, making it a game-changer in modern building construction. Strictly compliant with the Jiangsu Provincial Engineering Construction Enterprise Technical Standard 《Application Technical Specification for JN Composite Insulation Formwork Cast-in-place Concrete External Wall External Insulation System》 (Q/320322 JN001-2024, Record No. 320322-R217-2024), this product completely replaces traditional external wall wooden formwork, eliminating the drawbacks of wooden formwork such as easy deformation, high损耗 (loss), and non-reusability, while integrating insulation function to avoid secondary insulation construction. Taking high-quality Extruded Polystyrene Board (XPS) or Flame-retardant Extruded Polystyrene Board (SXPS) as the core insulation layer, it is compounded with inner surface base coat mortar (with alkali-resistant glass fiber mesh cloth) and outer surface polystyrene particle insulation mortar, precision-manufactured through advanced composite technology. Class A fire resistance (the highest non-combustible grade for building materials) is its standout feature: it undergoes 30-minute continuous fire test with no open flame combustion or flame spread, effectively curbing fire propagation, eliminating potential fire hazards, and fully meeting national and industrial fire protection standards[3]. In terms of construction efficiency and cost control, the integrated design of formwork and insulation simplifies procedures, shortens the construction period by 30%-40% compared with traditional processes, reduces labor input and material waste, and lowers overall construction costs by 15%-25%. During construction, it can be used as external formwork (Type I, permanent formwork process) or placed inside external formwork (Type II, large formwork built-in process); after pouring, it is firmly connected to the concrete structure via pre-embedded anchors to serve as a permanent insulation layer. With excellent mechanical properties, weather resistance, Class A fire safety, and remarkable cost-saving effects, it creates energy-saving, durable, safe and economical external wall projects, fully meeting the needs of green and efficient building development.

Non-dismantling formwork insulation integrated panel

II. Core Parameters (Strictly Compliant with Q/320322 JN001-2024 Standard, Type II)

Parameter Category	Parameter Name	Standard Value (Compliant with Specification)	Core Description (Focus on Fire Safety & Cost-Saving)
Basic Parameters	Specification Size	2900×600×120mm (Customizable, Compliant with Table 4.2.3)	Adapts to standard external wall construction sizes; customizable to fit project needs, reducing cutting loss and construction time, further optimizing cost control.
	Length Tolerance	±3mm (Compliant with Table 4.2.3)	High dimensional accuracy ensures tight splicing, avoids slurry leakage, reduces rework, saves construction time and labor costs.
	Width Tolerance	±2mm (Compliant with Table 4.2.3)	Compliant with specification, ensures smooth board connection, improves construction efficiency, and reduces unnecessary material waste.
	Total Thickness Tolerance	+3.0mm, 0mm (Compliant with Table 4.2.3, Type II)	Uniform thickness guarantees stable formwork support and consistent insulation effect, avoiding secondary insulation and cost increase.
	Surface Density	≤35kg/m² (Compliant with Table 4.2.4, Type II)	Lightweight yet sturdy, easy to transport and install, reducing labor intensity and transportation costs, accelerating construction progress.
Appearance & Structure	Appearance Quality	Flat surface, no impurities, no through cracks (Compliant with Table 4.2.2)	Smooth surface ensures beautiful pouring effect and tight bonding with concrete, reducing rework and saving construction costs.
	Diagonal Difference	≤5mm (Compliant with Table 4.2.3)	Excellent overall flatness avoids formwork deformation, ensures construction quality, and reduces maintenance costs in later stages.
	Insulation Core (XPS)	Thickness ≥20mm, Density 25-35kg/m³ (Compliant with Table 4.2.5)	Optional SXPS flame-retardant core enhances fire safety (matches Class A overall fire resistance), integrates insulation to avoid secondary construction and cost waste.
	Composite Structure	Inner Base Coat (2-5mm) + XPS Core + Polystyrene Particle Mortar (≥50mm)	Compliant with Type II structure; inner base coat with glass fiber mesh cloth enhances firmness, reduces cracking, and lowers later maintenance costs.
Mechanical & Bonding Performance	Impact Resistance	≥10 Times (Compliant with Table 4.2.4)	Strong impact resistance avoids board damage during construction, reduces material replacement costs and construction delays.
	Flexural Failure Load	≥2500N (Compliant with Table 4.2.4)	High flexural strength ensures stable formwork support, avoids construction accidents and rework, saving time and costs.
	Tensile Bond Strength	≥0.10MPa (Failure surface in insulation layer, Compliant with Table 4.2.4)	Firm bonding avoids peeling and falling off, ensures long service life, and reduces later maintenance and replacement costs.
	Bearing Capacity of Pre-embedded Anchors	≥0.80kN (C25 Concrete, Compliant with Table 4.3.3)	Firm connection with concrete structure ensures system safety, avoids potential risks and later maintenance costs.
Environmental Protection & Durability	Fire Performance	Overall Class A Fire Resistance (Non-combustible), XPS Core Class B1, Mortar Class A (A2); Combustion Time: No open flame combustion or flame spread in 30-minute continuous fire test, Compliant with Table 4.2.5, Table 4.2.6 and National Standard GB50016	Core Highlight: Class A Fire Resistance (highest non-combustible grade), 30-minute continuous fire test with no open flame or spread, fully compliant with fire standards, eliminating fire hazards and avoiding fire-related losses, ensuring building safety.
	Environmental Grade	Formaldehyde-free, Benzene-free, EU E0 Grade	Green and non-toxic, no harmful volatiles, meets green building requirements, avoids environmental protection rectification costs.
	Service Life	≥25 Years (system), Consistent with Building Main Structure (Compliant with 3.0.6)	Anti-aging and corrosion-resistant, same service life as building, reduces later maintenance and replacement costs, achieving long-term cost savings.

Non-dismantling formwork integrated panel

III. Applicable Scenarios

Strictly compliant with the scope of Specification 1.0.2, applicable to cast-in-place concrete external wall insulation projects of new, expanded and renovated civil and industrial buildings in areas with seismic fortification intensity ≤8 degrees. Widely used in residential buildings, commercial buildings, industrial plants, public facilities and other projects (especially projects with high fire safety requirements and cost-saving needs), adaptable to both Type I (permanent formwork process) and Type II (large formwork built-in process). It fits various climate zones (including alpine and humid areas), integrating fire safety, insulation and cost-saving, becoming the preferred material for green, efficient and economical building projects.

IV. Core Advantages (Focus on Fire Safety, Time-Saving & Cost-Saving)

1. Superior Class A Fire Safety: Highest non-combustible grade for building materials, 30-minute continuous fire test with no open flame or spread, fully compliant with national fire standards, eliminating fire hazards and ensuring building safety. 2. Significant Time-Saving: Integrated design of formwork and insulation simplifies construction procedures, shortens construction period by 30%-40%, avoids secondary insulation construction, and accelerates project delivery. 3. Substantial Cost Reduction: Replaces wooden formwork (no deformation, no waste), reduces labor input, material loss and later maintenance costs, lowering overall construction costs by 15%-25%. 4. Specification Compliance: Fully meets Q/320322 JN001-2024 standard, passed expert certification and filing, available as technical basis for construction and acceptance. 5. Excellent Durability: Strong mechanical properties, anti-aging and corrosion-resistant, same service life as building main structure, achieving long-term cost savings. 6. Convenient Construction: Lightweight, high dimensional accuracy, easy to transport and splice, adapting to standard construction processes, reducing labor intensity.