Wholesale 25mm Thickness Rubber Foam Sheet Roll Manufacturer, Quotes

Kingflex adopts high-performance NBR/PVC as the main raw material with various quality supplementary material by special frothing process to produce the soft energy conversation foam insulation. It has closed cell construction and has many great features such as soft resistance refractive index, cold resistance, fire-retardant, waterproof, low thermal conductivity , shock and sound absorption and so on. It can be widely used in large-scale central and home air conditioning,construction, chemicals, textile and electrical industries.

Product Description

Product Dimensions
Thickness Width 1m Width 1.2m Width 1.5m
Inches mm Size (L*W) ㎡/Roll Size (L*W) ㎡/Roll Size (L*W) ㎡/Roll
1/4" 6 30 × 1 30 30 × 1.2 36 30 × 1.5 45
3/8" 10 20 × 1 20 20 × 1.2 24 20 × 1.5 30
1/2" 13 15 × 1 15 15 × 1.2 18 15 × 1.5 22.5
3/4" 19 10 × 1 10 10 × 1.2 12 10 × 1.5 15
1" 25 8 × 1 8 8 × 1.2 9.6 8 × 1.5 12
1 1/4" 32 6 × 1 6 6 × 1.2 7.2 6 × 1.5 9
1 1/2" 40 5 × 1 5 5 × 1.2 6 5 × 1.5 7.5
2" 50 4 × 1 4 4 × 1.2 4.8 4 × 1.5 6
Technical Specifications
Property Unit Value Test Method
Temperature range °C (-50 - 110) GB/T 17794-1999
Density range Kg/m3 45-65Kg/m3 ASTM D1667
Water vapor permeability Kg/(m.s.pa) ≤0.91×10 ﹣¹³ DIN 52 615 / BS 4370 Part 2 1973
μ - ≥10000 -
Thermal Conductivity W/(m.k) ≤0.030 (-20°C) ASTM C 518
≤0.032 (0°C)
≤0.036 (40°C)
Fire Rating - Class 0 & Class 1 BS 476 Part 6 part 7
Flame Spread and Smoke Developed Index - 25/50 ASTM E 84
Oxygen Index - ≥36 GB/T 2406, ISO4589
Water Absorption, %by Volume % 20% ASTM C 209
Dimension Stability - ≤5 ASTM C534
Fungi resistance - Good ASTM 21
Ozone resistance Good GB/T 7762-1987
Resistance to U.V. and weather Good ASTM G23
Features Overview
🔥 1. Good Fire Performance
FM approved for entire range of insulation thickness. Certified to conform to safety, reliability and performance standards of various local fire safety bodies.
🛡️ 2. Closed-Cell Structure
Minimises moisture penetration to ensure long-term protection against corrosion under insulation. Removes the need for an additional water vapour barrier.
3. Energy Efficient & Protection
Low thermal conductivity minimizes energy losses to give long term energy savings. When microbes come into contact with the insulation surface, Microban penetrates the cell wall of the microorganism, disabling its ability to function, grow and reproduce.
🍃 4. Safer Indoor Air Quality
Fibre-free, free of formaldehyde and GREENGUARD Gold certified for low emissions of volatile organic compounds.
🔧 5. Easy-to-Install
Highly flexible elastomeric foam that can be installed quickly on irregular shapes and installations in tight spaces.
Frequently Asked Questions
What are the main advantages of this elastomeric foam insulation?
It features excellent fire performance, a closed-cell moisture-resistant structure, outstanding energy efficiency, built-in Microban antimicrobial protection, safe indoor air quality, and high flexibility for easy installation.
What temperature range can this insulation material withstand?
The material operates reliably within a temperature range of -50°C to 110°C, tested in compliance with industry safety standards.
Does this insulation require an additional water vapor barrier?
No. Due to its closed-cell structure, the material naturally minimizes moisture penetration, preventing corrosion under insulation and removing the need for a separate water vapor barrier.
What is the thermal conductivity rating of the material?
According to ASTM C 518 standards, the thermal conductivity values are ≤0.030 W/(m.k) at -20°C, ≤0.032 W/(m.k) at 0°C, and ≤0.036 W/(m.k) at 40°C.
Is this insulation safe for indoor environmental installations?
Yes, it is completely fiber-free, formaldehyde-free, and holds a GREENGUARD Gold certification to ensure low emissions of volatile organic compounds (VOCs) for safer indoor air quality.
What fire ratings and safety certificates does this product hold?
It is FM approved across the entire range of insulation thicknesses, holds Class 0 and Class 1 fire ratings (BS 476 Part 6 & 7), and meets the 25/50 Flame Spread and Smoke Developed Index standards (ASTM E 84).

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