PK Centrifugal Glass Wool

Related introduction

Formaldehyde-free glass wool is made of natural minerals such as quartz sand, dolomite, borax and other inorganic materials, mixed according to the specific process formula ratio requirements, after 1360 ℃ high temperature hot melt, using advanced centrifugal fiber forming technology to make glass wool felt and glass Cotton board and other products.


Product advantages


● Insulation and sound absorption


The characteristics of low content of glass wool slag ball, slender fiber,

etc., have excellent thermal insulation, sound absorption and noise reduction effect.


● Good thermal stability


Glass wool has good high temperature thermal stability, durability and resistance to high temperature shrinkage


It can maintain safety, stability and high efficiency for a long time within the recommended temperature range.


● Different durable moisture resistance


Hydrophobicity refers to the ability of a material to resist water penetration. The glass wool reaches a water repellency rate of not less than 98%, making it more


Continuous and stable insulation performance.


● Good fire performance


Tested according to GB8624-2012 standard, glass wool is non-combustible A grade material


● No poison


Liquid glass wool does not contain formaldehyde, asbestos, no mold, and no microbial growth foundation.



Product application



Insulated glass wool is used for thermal insulation of building steel structures, wall insulation, pipeline insulation, etc., as well as central air conditioning ducts, indoor partitions, thermal insulation and sound insulation of train cars, etc. to achieve good thermal insulation, sound absorption and impulsiveness. Moreover, this product has light texture, corrosion resistance, non-combustibility and other characteristics, which are new green energy-saving products and are widely distributed in the market.



Product Technical Index


project unit index Measured value Remarks
Test weight Kg/m3 24-96 24-96 GB/T13350-2000
Average fiber diameter μm < 8.0 4.0-6.0 GB/T13350-2000
Hydrophobicity % > 98 > 98.5 GB/T10299
Thermal Conductivity W/m.k 0.049-0.042 0.045-0.032 GB/T13350-2000
Incombustibility Nonflammable qualified(A级) GB/T13350-2000
Sound absorption coefficient 1.03Product Reverberation Method 24kg/m2000HZ GB/T147-83
Maximum operating temperature 400 410 GB/T13350-2000

Specification of centrifugal glass wool

product name Test weight(kg/m3 length(mm) width(mm) thickness(mm)
Sheet metal 24-96 1000/1200 600 25-100
Sheet metal 24-96 600/1200 1200 25-100
Roll felt 12-48 11000-20000 1200 25-150

Veneer introduction

Veneer name Domestic clip reinforced aluminum foil Domestic polypropylene plastic (white) Imported polypropylene plastic (VR10 white)
Structure description 4-layer composite structure 4-layer composite structure 4-layer composite structure
Aluminum foil surface layer Polypropylene surface layer Polypropylene surface layer
Adhesive layer Adhesive layer Adhesive layer
Three-way glass fiber layer Three-way fiber layer Three-way fiber layer
Kraft paper layer Kraft paper layer Kraft paper layer
project test introduction
Areal density Weighing 80 80 83
thickness 0.7mm/0.12mm 0.18mm 0.20mm
Water vapor penetration ASTM E96 A process 3.5×1010N.s/kg 5.5×1010N.s/kg 5.17ng/N.s
Bursting strength ASTMD774 30N/cm2 30N/cm2 4.2kg/cm2
Longitudinal tensile strength ASTM 105N/25mm 150N/25mm 7.0kN/m
Transverse tensile strength C1136 50N/25mm 70N/25mm 5.3kN/m
Accelerated catalysis 30天49℃ 95%Relative humidity No corrosion and no delamination
Low temperature resistance -40℃,4 小时 No stratification No stratification Keep it soft without delamination
High temperature resistance 116℃,4 小时 No stratification No stratification Keep it soft without delamination
Mildew resistance ASTM  C665 Does not grow
Water resistance 23℃,24 小时 No layering
Reflective ASTN  C523 Reflective 85%
Fire performance UL723

Polypropylene surface layer flame spread10.      Smoke diffusion10

Kraft layer flame spread10.      Smoke diffusion5