The Aptane® BFS product portfolio includes a range of two component block foam systems with densities and mechanical properties designed to suit the requirements of any application. The two main types of block foams are polyurethane (PUR) foam systems and polyisocyanurate (PIR) foam systems.
Aptane®BFS PUR foam products are used to produce pre-cut insulation foams for pipeline sections and joints on pipeline systems in LNG and chemical plants. PUR block foams produced with Aptane® BFS products can be cut to specified shapes and applied as required.
Aptane® BFS PIR foam products are also used to produce pre-cut insulation foams for pipeline sections and joints on pipeline systems in LNG and chemical plants.
However, the Aptane® BFS PIRfoam systems are used to produce products with lower Flame Spread and lower Smoke Developed indices when compared with PUR foam products. The PIR block foams produced with Aptane® BFS products can also be cut to specified shapes and applied as required. All of the Aptane® BFS series products are supplied HCFC free.
Aptane®BFSblock foams meet the stringent specification requirements expected by specifiers and engineers when designing chemical and gas processing plants. Aptane® BFS block foams can be designed to meet the individual requirements of each project. Typical properties of the Aptane® BFS PUR and PIR product range are detailed in the table below.
|PROPERTY||VALUE AND UNITS||STANDARD|
|Density||45 kg/m³||ASTM D1622|
|Closed Cell Content||>95%||ASTM D6226|
|Compressive Strength @ 23°C||>200 kPa||ASTM D1621|
|Compressive Strength@ -165°C||>280 kPa||ASTM D1621|
|Tensile Strength @ 23°C||>320 kPa||ASTM D1623|
|Tensile Strength @ -165°C||>265 kPa||ASTM D1623|
|Tensile Modulus||<16 Mpa||ASTM D1623|
|Coefficient of Linear Thermal Expansion @ -165°C to 23°C||<70 x 10⁻⁶ K⁻¹||ASTM D696|
|Thermal Conductivity @ 20°C||<0.027 W/m.K||ASTM C177|
|Thermal Conductivity @ -165°C||<0.016 W/m.K||ASTM C177|
|Burning Characteristics PUR||< 30mm/30s||ISO 3582 (BS 4735)|
|Burning Characteristics PIR||< 30mm/30s||ISO 3582 (BS 4735)|
|Leachable Chlorides||< 60 ppm||ASTM C871|
|Water Absorption||Max 5 volume %||ASTM D2842|
|Water Vapour Transmission||<0.8g / (m².h)||ASTM E96|
|CTSR Cryogenic Thermal Stress Resistance||> 1.5||CINI 2.7.01 and 2.7.02|