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 TECHNICAL INFORMATION
 

Expanded Polystyrene

Description Test

Method Results

Density, Minimum ASTM D303 1.15
Density, Range ASTM 1622

1.15 1.34

Thermal Conductivity @25F BTU ASTM C177  .22
@45F (sq ft)   .235
@75F  (F/in)   255
Compression Strength @ 10% Deformation ASTM D1621 13-18
Flexural Strength psi  ASTM C203 30-38
Tensile Strength psi ASTM D1623

18-22

Shear psi ASTM D723

23-25

Water absorption by immersion ASTM C272  Less than 4%
Thermal Expansion, in/(in.)(F) ASTM D696

0.000035

Oxygen Index, min, volume % ASTM C578  24%
Flame Spread ASTM E-84 20
Smoke developed ASTM E-84  150-300
Termite Resistance ASTM D3345(mod)  Passed
Carpenter Ant Resistance ASTM D3345(mod) Passed

FINISH

Description Test Method

Results

Freeze/Thaw  ASTM C-67

No cracking, checking, crazing, erosion

or other deleterious effects.

Freeze/Thaw ICBO AC24

No cracking, checking, crazing, delaminating,

erosion, or other deleterious effects.

Water Resistance ASTM D2247-94

No cracking, checking, crazing, blistering,

erosion, or other deleterious effects.

Humidity Resistance ASTM D-2247

No deleterious change in surface.

Mold Resistance ASTM D3273-94

No growth of mold observed.

Abrasion Resistance ASTM D-968-93 No cracking, checking or loss of film.
Salt Spray  ASTM B117-95

No cracking, crazing, blistering, erosion or

deleterious effects.

Accelerated Weathering ASTM G-53

 No surface changes such as cracking, checking,

crazing and erosion.

Accelerated Weathering  ASTM G23-93

No surface changes such as cracking, checking,

crazing and erosion.

Fade Resistance  ASTM D-1729-89 Passed

   

 

 

    

    

 

 

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