FOAMSTAB 1411
Silicone- and polymer-enhanced defoamer for solvent-borne and solvent-free coating systems, adhesives, sealants, and polyurethane thermosets.
Key Performance Benefits
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Synergistic Air Release
Combines the rapid foam-breaking action of organo-modified silicones with the long-lasting air-release performance of organic polymers to eliminate microfoam in dense, viscous resin systems. -
Void & Pin-hole Prevention
Effectively prevents gas voids and internal pinholes in thick-section casting compounds, adhesives, and reactive sealant formulations. -
High-Viscosity Efficiency
Promotes rapid bubble migration even in high-filler, heavily loaded adhesive and composite resin matrices. -
Balanced Compatibility
Minimizes surface tension gradients to prevent fish-eyes while maintaining excellent lap-shear bond strength and coating integrity.
Recommended Applications
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Polyurethane Thermosets
Ideal for 2K polyurethane casting resins, elastomeric coatings, and encapsulation compounds. -
Industrial Adhesives
Suitable for solvent-free structural epoxy adhesives, polyurethane laminating adhesives, and hot-melt formulations. -
Elastic Sealants
Recommended for polyurethane, MS Polymer, and polysulfide construction sealants requiring superior air release. -
Solvent-Borne Coatings
Designed for heavy-duty industrial protective coatings and thick-film barrier coating systems.
Typical Physical Properties
| Property Parameter | Test Specification / Unit |
|---|---|
| Chemical Description | Silicone- and polymer-enhanced liquid formulation |
| Active Content | 100% Active Concentrate |
| Appearance | Clear to slightly hazy liquid |
| Specific Gravity (20°C) | 0.88 – 0.93 g/cm³ |
| Carrier Type | Solvent-Free / Highly Compatible Carrier |
Dosage & Processing Guidelines
The typical recommended dosage for FOAMSTAB 1411 is 0.1% to 0.8% based on the total formulation mass.
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Incorporation Stage
Best added into Component A (Polyol or Epoxy Resin) prior to degassing and final curing agent blending. -
Dispersion Shear
Requires thorough planetary or high-speed dispersion mixing to achieve complete distribution throughout thick formulations. -
Vacuum Degassing
Highly synergistic with vacuum degassing processes, enabling virtually void-free polyurethane casting and encapsulation systems.
💡 Formulator Insight & Lab Tip
In thick polyurethane thermosets, structural adhesives, and encapsulation compounds, trapped air can significantly reduce structural integrity and dielectric performance. FOAMSTAB 1411 lowers the bulk interfacial viscosity surrounding entrapped air pockets, accelerating vacuum degassing while maintaining excellent lap-shear bond strength, Shore hardness, and overall mechanical performance of the cured system.
Related Technical Articles & Case Studies
Eliminating Air Bubbles in Polyurethane Potting & Casting Resins
A deep dive into silicone-polymer additives for achieving void-free thermoset encapsulation and superior casting quality.
Read ArticleFormulating High-Strength Adhesives Without Craters or Voids
Learn how additive selection influences shear strength, joint coverage, and air-release performance in 2K epoxy adhesive systems.
Read ArticleDe-aeration Techniques for High-Viscosity Sealant Formulations
Optimize vacuum degassing cycles using hybrid defoamers in polyurethane, MS Polymer, and high-performance sealant formulations.
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