PT2210 Epoxy Coating and Tool Sealer


PTM&W’s PT2210 A/B tool sealing material has proven to be an excellent material for the repair of leaking tools. This system has a very low mixed viscosity, which allows it to penetrate into the smallest leak paths. It has exceptionally high bond strengths so once it seals the leak, it has excellent adhesion. PT2210 A/B isextremely tough, for an epoxy, which allows it to withstand thermal cycling with out cracking or crazing.

 PT2210 A
PT2210 B
ASTM Method 
ColorLight Amber
Light Amber
1650 cps
20 cps
Specific Gravity, gms./cc
Mix Ratio, by Weight
100 : 28
Pot Life, 4 fl oz Mass @ 77°F
60 – 65 min.


The mixed viscosity of this system is sufficiently low enough to allow spraying, brushing or flow coating with no difficulty. Mix only enough material that can be applied within the pot life of the mass used, to prevent damage to equipment and to insure proper adhesion of the coating. Try to apply the coating before half of the pot life has elapsed, as epoxies can thicken as they reach the end of the pot life, and the coating will not wet the surface properly if this occurs and adhesion will be less than desired.
PT2210 will cure completely at room temperature, and there is no need for an elevated temperature cure to reach full properties. It will cure to a tack-free condition in 24 to 36 hours at ambient temperatures over 70°F. If desired, PT2210 can be heat cured after a room temperature gel, to allow a tool to be returned to service quicker. A typical oven heat cure would be 3 to 4 hours at 140°F to 165°F. NOTE: PT2210 will soften and probably darken when exposed to higher temperatures. Darkening has no effect on the performance. The softening helps keep the porosity sealed because instead of cracking at high temperatures, it gets pliable. For more information on applying PT2210, and its use in sealing high-temperature tools, refer to the bulletin “Using PT2210 A/B to Restore Vacuum Integrity of Tools” in the Technical Papers Section of PTM&W’s website (

 PT2210 A/B
ASTM Method
Mix Ratio, by Weight
100 : 28
Mixed Viscosity, @77°F, centipoise
240 cps
Pot Life, 4 fl.oz. Mass, @77°F
60 – 65 min.
Cured Hardness, Shore D, @77°F, @300°F*
82 Shore D
Specific Gravity, grams, cc
Density, lb./cu. in.
Specific Volume,  cu. in./lb.
Tensile Strength, psi
8000 psi
Elongation at Break, %
3.46 %
Tensile Modulus, psi 403,000 psi
Flexural Strength, psi
11,205 psi
Flexural Modulus, psi
643,000 psi
Compressive Strength, psi
9,610 psi
Compressive Modulus, psi 141,000 psi
Glass Transistion Temperature, DMA:
Coefficient of Thermal Expansion, Range 77-100°F
3.51 x 10-5 in./in./°F

 Quart Kit
Gallon Kit
Pail Kit
PT2210 Part A
2.25 lb.
7.5 lb.
48 lb.
PT2210 Part B
.63 lb.
2.1 lb.
14 lb. (2@ 7 lb. ea.)
Kit2.88 lb.
9.6 lb.
62 lb.


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.