PT2179 White Laminating System for Economical, Stable Tooling


PT2179 is a white room temperature service epoxy laminating resin intended for use in producing a wide
variety of tools and fixtures. The cured properties of this system are quite good. Tooling made with it exhibits very good long term dimensional stability. Two hardeners are available for use with PT2179 resin, for different shop conditions and applications. PT2179 B has a 30 minute working time, and is better suited for warmer temperature use or for thicker laminates where the added mass develops sufficient heat to fully cure the system at cooler room temperatures. PT2179 B1 hardener has a 20 minute working time and will cure completely in thinner laminates, and at times when the Part B hardener might be too slow. The mixed viscosity with both of these hardeners is low enough to allow thorough penetration of the tooling fabric without any drain from sharply contoured surfaces. The PT2179 system has been designed to allow the construction of tooling very economically. This economy does not require compromises, as the cured product has excellent properties.

 PT2179 A
PT2179 B
PT2179 B1
ASTM Method
6,500 cps
400 cps
400 cps
Specific Gravity, gms./cc
Mix Ratio by Weight
 100 : 13
100 : 16
Pot Life, 4 fl oz Mass @ 77°F
 30 min.
20-25 min.


PT2179 will cure completely with no heat added at normal ambient room temperatures. When the laminate size guidelines for the two hardeners as listed above are followed, at 77°F, 18 to 24 hours is usually sufficient cure time to allow handling of the laminate. Keep in mind that smaller, thinner laminates made with the Part B hardener will take longer to reach full cure than if the Part B1 hardener is used. The cures can be accelerated with heat if desired, however, heat curing will increase shrinkage in the cured material. For a typical heat cure cycle, allow the material to gel hard at room temperature, followed by an oven cure of 150°F for 1 to 2 hours.


PailDrum Kit
Hardener Drum
PT2179 Part A 50 lb.
550 lb.
PT2179 Part B
6.5 lb.
2 @ 36 lb. ea.
360 lb.

Inasmuch as PTM&W Industries, Inc. has no control over the use to which others may put material, it does not guarantee that the same results as those described herein will be obtained. The above data was obtained under laboratory conditions, and to the best of our knowledge is accurate. This information is presented in good faith to assist the user in determining whether our products are suitable for his application. No warranty or representation, however is intended or made, nor is protection from any law or patent to be inferred, and all patent rights are reserved. Before using, user shall determine the suitability of the product for his intended use, and user assumes all risk and liability whatsoever in connection therewith. In no event with PTM&W Industries, Inc. be liable for incidental or consequential damages. Buyer’s sole and exclusive remedy in such instances shall be limited to replacement of the purchase price.

 PT2179 A/B
PT2179 A/B1
ASTM Method
Mix Ratio, by Weight
100 : 13
100 : 16
Mixed Viscosity, centipoise, @ 77°F
5,000 cps
5,000 cps
Pot Life, 4 fl. oz. Mass @ 77°F
30 min.
20 min.
Cured Hardness, Shore D
91 Shore D
89 Shore D
Specific Gravity, grams, cc
Density, lb./cu. inch
Specific Volume, cu. in./lb.
Tensile Strength, psi
26,390 psi
28,100 psi
Elongation at Break, %
1.6 %
1.7 %
Tensile Modulus, psi 2.49 x 106 psi
2.29 x 106 psi
Flexural Strength, psi
43,153 psi
41,740 psi
Flexural Modulus, psi
 2.73 x 106 psi2.16 x 106 psiD790
Compressive Strength, psi
17,600 psi
17,020 psi
Glass Transition Temp., DMA: Tg


PTM&W epoxy products are made from raw materials carefully chosen to minimize or even eliminate toxic chemicals, and therefore offer the user high performance products with minimum hazard potential when properly used.  Generally, the PTM&W epoxy resins and hardeners will present no handling problems if users exercise care to protect the skin and eyes, and if good ventilation is provided in the work areas.  However, all epoxy resins and hardeners can be irritating to the skin, and prolonged contact may result in sensitization; and breathing of mist or vapors may cause allergenic respiratory reactions, especially in highly sensitive individuals.  As such, avoid contact with eyes and skin, and avoid breathing vapors.  Wear protective rubber apron, clothing, gloves, face shield or other items are required to prevent contact with the skin.  In case of skin contact, immediately wash with soap and water, followed by a rinse of the area with vinegar, and then a further wash with soap and water.  The vinegar will neutralize the hardener and lessen the chances of long term effects.  Use goggles, a face shield, safety glasses or other items as required to prevent contact with the eyes.  If material gets into the eyes, immediately flush with water for at least 15 minutes and call a physician.  Generally, keep the work area as uncluttered and clean as possible, and clean up any minor spills immediately to prevent accidental skin contact at a later time.  Keep tools clean and properly stored.  Dispose of trash and empty containers properly.  Do not use any of these types of products until Material Safety Data Sheets have been read and understood.