Pouring Foams
Quick Overview
Pouring Foams are a family of rigid water-blown foams designed especially for pour casting into molds to create very intricate very diverse parts. These pouring foam formulations may be custom blended to offer unique mechanical, thermal, non-burning, high compressive/shear strength properties along with specifically designed reactivity molding times such as creme time, gel time, tack-free and overall cure time. SuperSkinSystems offers these properties in a wide range of foam densities. Typical density pouring foams ranges from 2-10 pcf. These foams may also be colored and/or include bio-based polyols to be considered “a green product”. These pour casting foams are seen in a variety of applications in very diverse industries such as architectural wall and decorative part moldings, furniture and toy markets, specialty part moldings etc. Densities of 2-3 pcf have been tested to MIL-P21929C.
Please contact our Customer Service and Technical Support Group for any questions or to provide direction with specific selection of a material system, questionable target applications, operational procedures, material pumping/pour machines, safety protection gear and clean-up.
Technical Application Data
Pouring Foams are two component mixtures primarily designed with a 1A to 1B mix ratio. These foams may be hand batch mixed in small volumes or used in large volume dispensing using proper plural component machine. Typical working times may be creme-30-40 sec., gel time-90 sec and tack-free-20 sec. Caution must be used heavy thick pours i.e. no more than 12″ thick, where exhibit high exothermic temperatures of 230F may be seen. SuperSkinSystems also offers low exothermic reacting foams for specifically demanded projects. Substrate must be dry while relative humidity < 85%. Volumetric expansion of these foams are related to their specific density. Pouring foams may be applied from 50 F up to 100 F and will handle 200 F functional operation temperatures. These foams yield excellent adhesion characteristics and are extremely water repellent depending on the closed cell content and density. These foams are not UV stable and not intended for direct exterior weatherability applications.
Physical Properties
| POURING FOAMS PHYSICAL PROPERTIES | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| DENSITY (PCF) | ASTM D1622 | (2.0) | (2.5) | (3) | (5) | (10) | ||||
| Fire Rating | ASTM E84 | Class 1 | Class 1 | Class 1 | Class 1 | Class 1 | ||||
| Thermal Resistance (Rvalue) | ASTM C518 | 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 | 25 | 37 | 50 | 100 | 201 | ||||
| Shear Strength (psi) | ASTM C273 | 22 | 26 | 35 | 85 | 127 | ||||
| Shear Modulus | ASTM C273 | 231 | 253 | 312 | 788 | 1011 | ||||
| Tensile Strength (psi) | ASTM D1623 | 227 | 44 | 62 | 165 | 227 | ||||
| Flexual Strength (psi) | ASTM C203 | 55 | 65 | 123 | 204 | 312 | ||||
| Flexual Modulus | ASTM C203 | 522 | 963 | 2356 | 4785 | 7055 | ||||
| Water Absorption (%vol) | ASTM D2842 | <0.5 | <0.1 | <0.1 | <0.1 | <0.1 | ||||
| Water Vapor (perm-in) | ASTM E96 | <1.0 | <1.0 | <1.0 | <1.0 | <1.0 | ||||
| Fungi Resistance | ASTM C 1338 | None | None | None | None | None | ||||
| Closed Cell Content (%) | ASTM D2856 | >90 | >90 | >95 | >95 | >95 | ||||