PSF 3113-3-R-NATURAL

PSF 3113-3 systems are all water-blown spray rigid foams designed for void filling applications. The product can be designed to meet a variety of reactivity requirements

PSF 3113-3-R-NATURAL – Rigid Polyurethane Foam System

 PSF 3113-3-R-NATURAL is a two-component, water-blown spray rigid polyurethane foam designed specifically for void filling applications. Its formulation ensures a consistent and uniform closed-cell structure, making it suitable for structural floatation and other void fill needs where rigidity and low water absorption are critical.

 This system consists of two parts mixed in a 1:1 volume ratio:

·       Side-A (ISO): A liquid isocyanate component with low viscosity (150–200 cps at 25°C) and specific gravity of 1.24.

·       Side-B (Polyol Blend): A viscous liquid with a viscosity of 700–1000 cps and a specific gravity of 1.18.

 Used extensively in marine and construction industries, PSF 3113-3-R-NATURAL is ideal for structural flotation, general void filling in concrete or other structural cavities, and other rigid foam applications.

·       Mix Ratio: 1:1 by volume (Side-A to Side-B)

·       Density: 3 lbs/ft³ (ASTM-1638)

·       Compressive Strength:

o   Parallel to rise: 55 psi

o   Perpendicular to rise: 37 psi

·       Tensile Strength: 85 psi (ASTM 1623)

·       Shear Strength: 50 psi (ASTM C-273)

·       Closed Cell Content: 85%

·       Storage:

o   Side-A should be stored between 77°F–95°F (25°C–35°C).

o   Avoid freezing; reheat using convection ovens if needed, but not exceeding 140°F (60°C).

o   Side-B can be stored at ambient temperature.

o   Use a nitrogen blanket on partial drums to prevent moisture contamination.

·       Environmental and Safety Limitations:

o   Avoid exposure to temperatures over 400°F (204°C) as this may cause container rupture.

o   Do not breathe vapors or allow skin/eye contact; vapors of heated MDI can be hazardous.

·       UV Stability: Not specified – not designed for exposed UV environments.

·       Application Thickness & Coverage: Not applicable as this is an expanding foam product – expands to fill voids and measured by volume rather than mils or coverage per gallon.

This system is not designed for use as a topcoat or for exposed applications where UV resistance is needed. It is used independently and not typically layered with other coating systems.

https://www.polycoatusa.com/system.php?systemName=PSF-3113-3-R-NATURAL