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Product Specification - BioBased 501 Spray Foam
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A. Product
BioBased 501 (0.5 lb/ft³ spray foam polyurethane semi-open celled insulation)

B. Manufacturer
The chemical components are manufactured by BioBased Systems, LLC.

C. Product Description
BioBased 501 spray foam insulation is a two-part, soy-based product installed by Certified Dealers using custom designed application equipment. When installed, BioBased 501 expands to completely fill all voids to effectively seal against air infiltration—often the major source of heat/cooling loss. BioBased 501 also provides superior acoustical and thermal performance when compared to other insulation products. While offering superior performance in conventional construction, it is especially effective in steel-framed structures, older homes and metal buildings.
BioBased 501 is applied by spraying liquid chemical components onto open wall, ceiling, and floor surfaces; or into wall and other cavities. When applied, the components quickly expand to make a foam layer of millions of air pockets—covering surfaces and filling cracks and voids. The foam adheres to almost all surfaces, and when cured can be trimmed off to provide a surface that is ready for drywall or other finishing.

D. Foam Physical Properties (ICC Acceptance Criteria)

International Code Council (ICC) Acceptance Criteria (AC12)
Testing Requirements for Non-Structural Foam
Required Test Results
BBS 501
Test Results
Thermal Resistance at 75°F (24°C) mean temperature:
• ASTM C518
As reported 3.83 R (resistivity) per
inch of thickness
Core Density:
• ASTM D1622
0.5 – 1.0 lbf/ft³
(pounds per cubic foot)
0.5 lbf/ft³
Closed cell content:
• ASTM 2856
As reported 15.5%
Tensile Strength:
• ASTM D1623
With a minimum closed
cell content of 90%.
5 lbf/in2 minimum
(pounds per square inch)
n/a
With a closed cell
content of less than 90%.
3 lbf/in² minimum
(pounds per square inch)
3.2 lbf/in² minimum
Dimensional Stability:
• ASTM D2126
15% maximum
total change
–2.8%
Surface Burning Characteristics:
• International Building Code (IBC) ASTM E84
75 or less flamespread
index
<25 flamespread index
450 or less smoke
developed index
<450 smoke developed
index

BioBased 501 has met or exceeded all evaluation criteria for ICC (International Code Council) approval as a
building insulation. Its ICC approval number is ESR-1383, and is in full compliance with the following codes:
• 2003 International Building Code® (IBC)
• 2003 International Residential Code® (IRC)
• 1997 Uniform Building Code® (UBC)

E. Additional Testing
OXYGEN INDEX
• Test Standard.......................................... ASTM D2863
• Oxygen Index......................................................23.5%
AIR PERMEABILITY
• Test Standard............................................ ASTM E283
• Unit of measure ........................liters / second / meter2
• Test at 3.25" and 75 Pa pressure..........................0080
• Test at 5.25" and 75 Pa pressure..........................0049
WATER PERMEABILITY
• Test Standard.............................................. ASTM E96
• Test at 3.5" thickness.....................................16 perms
• Test at 5.5" thickness.....................................10 perms
RESISTANCE TO THE GROWTH OF FUNGI
• Test Standard.......................................... ASTM C1338
• Test Result ............................ pass—no growth of fungi

E. Containers
A set of chemicals for BioBased 501 spray foam insulation consists of the following:
• one (1) 55 gallon drum of ‘A’ component
• one (1) 55 gallon drum of ‘B’ component
The shipping weight for each set is 1032 lbs (468 kg).

F. Storage
For both ‘A’ and ‘B’ components — store between 60° and 90°F (16° and 32°C).

G. Installation
BioBased 501 is installed by certified technicians that specialize in the installation of soy-based spray foam. Application of the product can generally occur
independent of environmental conditions—it can be installed in hot, humid, or freezing conditions—and surface preparation is generally not necessary. Once
BioBased 501 has been sprayed, curing takes only a few seconds.

H. Installation Specifications
• Pressure .................................. 1100 psi ±200 psi
(76 bar ±14 bar)
• Drum temperatures .............................80°F ±5°F
(27°C ±3°C)
• Temperature of block
heaters and hose.............................120°F ±15°F
(49°C ±8°C)
Complete, thorough, and accurate recirculation of the components prior to spraying is critical for good foam and high yields. Contact BioBased Systems for a list of approved recirculation equipment. Please contact BioBased Systems for building science (application) information.

I. Warranty
BioBased Systems warrants that BioBased 501 spray foam insulation, when installed according to BioBased Systems certified installation instructions
and by a BioBased Systems Certified Dealer, will perform as indicated in the current product specification sheet.

J. Technical Support
BioBased Systems Certified Dealers and BioBased Systems, LLC both provide information for technical and regulatory issues. Architectural specifications in
CSI three-part format are available upon request.

K. Disclaimers
• BioBased Systems, LLC does not endorse open combustion appliances located in atticspaces.
• BioBased 2000 NB must be separated from living areas by a 15 minute thermal barrier.
• For proper use of this insulating material, refer to BioBased Systems application information and any of the following codes or guides:
- ICC, International Building Code, Section 2603
- ICC, International Building Code, Section R314
- API publication AX-230: Fire and Safety Guidelines for Use of Rigid Polyurethane and Polyisocyanurate Foam Insulation in Building Construction.

© 2005 Gateway Foam Insulators
Residential Commercial Industrial