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Bio-Based Rigid Building Foams
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TDS
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Bio-Based Rigid Foams offer a unique
blend of properties which yield excellent mechanical and thermally efficient structures.
SSFR foams deliver high compressive/shear strength, insulating capacity, overall
toughness and impact resistance. Their high performance strength to weight ratio
densities produce a wide range of applications for very diverse industries. As an
energy saivng material yielding very high insulating values, paralleled with its
sound absorbing capability it has seen much use in the architectural and construction
industries. Rigid foams are applied in spray or casting formats. Pour casting diversifies
its uses to the areas of consumer products manufacturing, mold making, marine docks,
artwork carving and many industrial and commercial industries. SSFRs may be subsequently
color top-coated, textured and clear coated to handle extensive outdoor rugged environments
using the ClearSkin system. These materials maintain dimensional stability and will
not deform or distort within operating temperature of -100F to 200F. Fire retardancy
formulations are used in sturctural public buildings and warehouses. Installation
cure times range from 30 sec. to 30 min. depending on application method (spray
vs. pour), ambient temperature and humidty. Pour foam applications require longer
cure times and caution must be taken for large castings due to inherent exothermic
reaction process. SSFRs utilize a standard 2-component liquid pumping machine for
both the spray and pour methods of dispensing. Volumetric expansion of SSFR may
be formulated up to 140x relative to its original volume depending on required application
densities.
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The Rigid Building Foams are water or gas blown (245 or Pentane) fast-set materials
typically used for air-tight insulation applications due to their closed-cellular
nature. These foams are premium building products which contribute structural integrity
with moisture, air and chemical vapor barrier integrity. High insulating values
are attibuted with these foams and as such are commonly in roof, wall and floor
insulation applications, commercial freezers and all energy saving applications
where high thermal insulating requirements are mandated. Values vary relative to
foam densities. Foam coverage per sq.ft. will vary relative to the density also
as governed by expansion characteristics, the ambient spray temperature and the
substrate temperature.
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Please contact our Customer Service and Technical Support Group for any questions
or to provide direction with specific selection of a material system, questionalable
target surfaces, operational procedures, material pumping/spray machines, spray/pour
guns, safety protection gear and clean-up kits.
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RIGID BUILDING FOAMS PHYSICAL PROPERTIES |
| DENSITY (PCF) | ASTM D1622 |
0.5 |
1.0 |
1.5(1.5) |
2(2.0) |
2.5(2.5) |
3(3) |
6(6) |
10(10) |
| Fire Rating |
ASTM E84 |
Class 1 |
Class 1 |
Class 1 |
Class 1 |
Class 1 |
Class 1 |
Class 1 |
Class 1 |
| Thermal Resistance (Rvalue) |
ASTM C518 |
3.6 |
4 |
4.5(5.7) |
4.7(6.8) |
4.7(6.8) |
4.7(6.5) |
4.7(5.5) |
4.7(5.0) |
| Compressive Strength (psi) |
ASTM D1621 |
12 |
14 |
15 |
25 |
37 |
82 |
140 |
201 |
| Shear Strength (psi) |
ASTM C273 |
15 |
17 |
18 |
22 |
26 |
35 |
85 |
127 |
| Shear Modulus |
ASTM C273 |
185 |
195 |
207 |
231 |
253 |
312 |
788 |
1011 |
| Tensile Strength (psi) |
ASTM D1623 |
20 |
25 |
30 |
40 |
44 |
62 |
165 |
227 |
| Flexual Strength (psi) |
ASTM C203 |
35 |
40 |
45 |
55 |
65 |
123 |
204 |
312 |
| Flexual Modulus |
ASTM C203 |
111 |
145 |
164 |
522 |
963 |
2356 |
4785 |
7055 |
| Water Absorption (%vol) |
ASTM D2842 |
<5.0 |
<5.0 |
<1.0 |
<0.5 |
<0.1 |
<0.1 |
<0.1 |
<0.1 |
| Water Vapor (perm-in) |
ASTM E96 |
<5.0 |
<5.0 |
<1.0 |
<1.0 |
<1.0 |
<1.0 |
<1.0 |
<1.0 |
| Fungi Resistance |
ASTM C 1338 |
None |
None |
None |
None |
None |
None |
None |
None |
| Closed Cell Content (%) |
ASTM D2856 |
Open |
>40 |
>60 |
>75 |
>90 |
>95 |
>95 |
>95 |
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NOTE: Gas-Blown foam property values are indicated (value)
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TECHNICAL APPLICATION DATA
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Both SuperSkinFoam types normal require a two component dispensing machine.
Rigid foams may also be hand batch mixed in small volumes. Large volume batch
mixing requires special formulation. Cure
times of for spray Elastomerics range from 20-30s while Rigid spray foams range
10-60s. During application, to obtain heavier build thickness, it is important to
apply a heavy one-pass delivery. Do not dispense multi-passes as pinholing will
occur. For best foaming results, it is best to pre-heat material in drums to
75°F and proportional machine to 110°F. Substrate must be dry while relative
humidy < 85%. Volumetric expansion of Elastomerics provide up to 4x original volume while
Rigids may expand up to 100x depending on foam density. Elastomeric foams may be
applied from 40°F to 100°F in high humidity climates with target surfaces clean
and moisture free. Rigid foams may be applied from 70 F up to 100 F under the same
conditions. Both foams may be formulated to fire retardant Class 1 E84 ASTM standard
for industrial use. Rigids will handle 200 F service operation temperatures while
Elastomerics may extend up to 250 F. These foams yield excellent adhesion characteristics
and are extremely water repellent. Elastomerics retain a high resilentcy to impact
and foot traffic compared to Rigids which exhibit compression set under load. Both
foams require a UV protective top-coating for exterior weatherability applications.
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Adhesion Results of Typical Substrates per ASTM D-4541 Elcometer
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EPDM- Primed with Primer28
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>300 psi
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Cohesive failure; excellent substrate bonding
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Concrete- clean
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>300 psi
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Cohesive failure; excellent substrate bonding
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Steel- clean
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>1000 psi
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Cohesive failure; excellent substrate bonding
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Wood- dry/dust free
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>250 psi
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Wood failure; excellent substrate bonding
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Preparation of substrate surface prior to primer is extremely
important as durability is only as good as the weakest link in the coating system.
Concrete must be fully cured and should be treated with a sandblasting depending on the severity of the concrete surface
condition. For patching, use our calcium carbonate filled fast-set Acrylic Modified
Epoxy applied by trowel. For expansion joints, use our Joist Seal applied by hand
cartridge dispensing gun.
Metals must be prepared and standardly preped to be clean. If surface deterioration
is evident a general shot blasting is required.
Wood must dry and free of dust before applying any type of the epoxy-based primers.
Depending on the nature of a foam, plastic or composite primers should be tested
to achieve a secure cohesive failure. Please call or email our Technical Support
Group for any questions regarding material, application or prospective uses.
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