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GP® 161G66 Resin

GP® 161G66 resin is used in conjunction with GP®012G23 catalyst in the manufacture of pultruded composite parts. GP 161G66 is a phenolic resole and GP 012G23 is a base catalyst. They are formulated to provide low smoke generation and flame resistance.


Composites, Fiber-reinforced polymers, Fire-safe bus parts, Fire-safe construction materials, Fire-safe railcar parts, Fire-safe walkways, High-temperature applications, Laminates, Passenger platform decking

Product Composition

Phenol-formaldehyde resole


Amber to brown liquid

Typical Properties
Non-Volatiles, %
72 - 76
Viscosity, cps
1,500 - 2,000
7.7 - 8.7
Specific Gravity @25°C
1.10 - 1.20
Weight per Gallon, lbs
9.8 - 10.2
Shelf Life @ 25°C
30 days
Non Volatiles, %
71 – 72
Viscosity, cps
8,000 - 10,000
8.2 - 8.5
Specific Gravity @ 25°C
1.2190 - 1.2220


Drums and bulk quantities

Storage and Handling

GP 161G66 resin and GP 012G23 catalyst should be used in areas with good ventilation. Resin should be stored at temperatures at or below 40°F (5°C) while cayalyst can be stored at 20°C-25°C. Prior to use, the resin should be brought to room temperature. As with any resin/acid system, precise and through mixng of the resin and catalyst mixture is essential to achieve uniform cure and optimum quality.

The information and technical data herein is believed to be accurate. It is offered for your consideration, investigation and verification. Buyer assumes all risk of use, storage and handling of the product. NO WARRANTY, EXPRESS OR IMPLIED, IS MADE INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WHICH ARE SPECIFICALLY EXCLUDED. Nothing contained herein shall be construed as a license to operate under or recommendation to infringe any patents.

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