Silicone Surfactant

L-5420 was developed for use as a general purpose surfactant for most rigid foam

formulations and shoe soles applications. L-5420 has been demonstrated to provide excellent cell control and to effectively compatibilize rigid foaming ingredients. It is soluble in most rigid polyols and will make clear stable premix. It should not be added to isocyanate.

L-5420 can be used in formulations such as refrigeration, pour-in-place, slabstock, froth,

spray, and continuous laminate boardstock with excellent results. It can be used to stabilize formulations where a polyol soluble product is desired and inadequate. With increased emphasis on foam production costs, it can lower inventory costs by performing in most rigid foam formulations.

◎ Can be used in most rigid foam formulations on polyol side with excellent results. ◎ Produces fine, uniform cell structure with high degree of closed cells ◎ Maximizes fluorocarbon retention by preventing cell coalescene which produces low in place densities ◎ Provides long term premix chemical stability

Properties	Specification
Physical appearance	Liquid
Viscosity(25℃, cSt)	350
Color(GVS)	2
Specific Gravity(25℃)	1.063
Freezing Point(℃)	-17

※ GVS : Gardner Varnish Standards

▶Applications

The optimum concentration of L-5420 depends on many variables, such as formulation ingredients, type of application, or mold complexity. A starting concentration of 1.0 parts by weight per 100 parts of polyol is recommended. In some formulation, this recommended use level may need to be increased. The best loading should be determined using each specific formulation and type of equipment.