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GS Polymers GSP 1573-1

GS Polymers GSP 1573-1 is a two-part, general purpose polyurethane potting system. The low viscosity A and B components readily mix into an easily pourable potting resin.

Product Type: Potting Compound

Chemical Family: Polyurethanes (PU)

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Identification & Functionality

Chemical Family
Product Type

Features & Benefits

Characteristics

The system ultimately cures into a translucent blue, moderately soft, flexible elastomer with a hardness of 55 – 65 shore A. Fully cured, GSP 1573-1 polymer resists degradation in applications where there is moisture exposure.

Features

100% Reactive (contains no solvents)
Excellent water resistance

Applications & Uses

INSTRUCTIONS FOR USE

SIDE-BY-SIDE (SBS) CARTRIDGE:
The recommended method to ensure an accurate mix ratio when dispensing material from a SBS tube through a static mixer nozzle is as follows:
1. Remove the nozzle tip-cap by twisting and pulling it off. Do not discard tip cap unless all the material in SBS tube is used. Save for reattachment to seal remaining material in the SBS tube.
2. Extrude enough material until there is an even flow of material from both openings. Discard this material extruded from the SBS tube.
3. Attach the mix static nozzle by twisting it on the nozzle tip. Extrude material until ~2-3 cm (~1 inch) of material has extruded. Discard this material extruded from the mixer.
4. Material can now be applied directly to the bonding surface.
5. When application is complete and there is still material remaining in the SBS tube, remove and discard the static mix nozzle.
6. Clean the tip-cap thoroughly to prevent cross contamination of the tip openings.
7. Attach tip-cap back onto the SBS tube.
TO MIX BY HAND:
Mix Ratio by Volume: 1 parts by volume GSP 1573-1 Part A to 2 parts by volume GSP 1573-1 Part B. Mix Ratio by Weight: 58 parts by weight GSP 1573-1 Part A to 100 parts by weight GSP 1573-1 Part B.
Pot-Life: Do not mix more than can be applied in 60 minutes. Gel time is about 1 – 2 hours but will vary depending on the mass mixed and the ambient temperature.
Proportion out components according to parts by weight or volume ratio into a non-reactive container (polyethylene, polypropylene, or metal de-rimmed can). Container should be about five times larger than the volume of the mixed material. Mix components very thoroughly, preferably with a metal spatula, scraping the sides and bottom of container to incorporate all material.
If working time allows, transfer material to a clean container without scraping sides or bottom before applying. Material should be used immediately.

Properties

Component A
ValueUnitsTest Method / Conditions
Density9.45lb/gal-
ViscosityFlowablecps-
ColorBlue--
Physical Properties
ValueUnitsTest Method / Conditions
Hardness55 – 65Shore A-
Dielectric Strength384v/mil(ASTM D149-97a Method A)
Dielectric Constant3.11 (ASTM D150-98)k-
Volume Resistivity4.856E+11 (ASTM D257-99)Ω· cm-
Component B
ValueUnitsTest Method / Conditions
Density8.18lb/gal-
ViscosityFlowablecps-
ColorAmber--
Handling Properties
ValueUnitsTest Method / Conditions
Mix Ratio By Weight58 A : 100 B--
Mix Ratio By Volume1A : 2B--
Pot LifeI hour-
Gel Time100 – 120minutes-
Cure Time At Room Temperature24Hours-

Storage & Handling

Shelf Life
6 Months