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| L-6900 |
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Silicone Surfactant
L-6900 is a non-hydrolyzable silicone copolymer specifically developed for use in rigid foam formulations incorporating reduced levels of auxiliary blowing agent
for example, high water/reduced CFC-11 systems. It is the surfactant of choice for moderately reduced CFC-11 systems. However, since the performance of this silicone is determined in large measure by the nature of the formulation(polyols, catalyst and CFC-11 usage levels, etc.), this catalyst should be considered for all formulations using reduced levels of auxiliary blowing agent.
L-6900 produces rigid polyurethane foams having a narrow distribution of small, fine, closed cells that contribute to excellent k-factor performance. In addition, the product provides excellent flow performance in these systems.
L-6900 is a premium product that offers superior performance in refrigeration, pour-in-place and slabstock applications. A starting concentration of 1.5 parts by weight per 100 parts of polyol is recommended. However, in many instances, the preferred use level of this material is 2.0 to 2.5 parts by weight per 100 parts of polyol. Some representative formulations incorporating L-6900 are given below. |
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Physical Appearance : Liquid
Viscosity, cSt at :1616 ,at : 717
Color, GVS : 3
Specific Gravity at 25'C : 1.05
Freezing Point, 'C('F) : -6(21)
Flash Point, Pensky-Martens Closed Cup(1), 'C('F) : 89(193) |
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Nine Chemical
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+82-2-578-3701 |
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+82-2-553-9505 |
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