PT2210 Epoxy Coating and Tool Sealer
DESCRIPTION
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.
PRODUCT SPECIFICATIONS
| PT2210 A | PT2210 B | ASTM Method | |
| Color | Light Amber | Light Amber | Visual |
| Viscosity | 1650 cps | 20 cps | D2392 |
| Specific Gravity, gms./cc | 1.14 | 1.01 | D1475 |
| Mix Ratio, by Weight | 100 : 28 | PTM&W | |
| Pot Life, 4 fl oz Mass @ 77°F | 60 – 65 min. | D2471 |
HANDLING AND CURING
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 (www.ptm-w.com).
TYPICAL MECHANICAL PROPERTIES
| PT2210 A/B | ASTM Method | |
| Mix Ratio, by Weight | 100 : 28 | PTM&W |
| Mixed Viscosity, @77°F, centipoise | 240 cps | D2393 |
| Pot Life, 4 fl.oz. Mass, @77°F | 60 – 65 min. | D2471 |
| Cured Hardness, Shore D, @77°F, @300°F* | 82 Shore D | D2240 |
| Specific Gravity, grams, cc | 1.15 | D1475 |
| Density, lb./cu. in. | .041 | D792 |
| Specific Volume, cu. in./lb. | 24.1 | D792 |
| Tensile Strength, psi | 8000 psi | D638 |
| Elongation at Break, % | 3.46 % | D638 |
| Tensile Modulus, psi | 403,000 psi | D638 |
| Flexural Strength, psi | 11,205 psi | D790 |
| Flexural Modulus, psi | 643,000 psi | D790 |
| Compressive Strength, psi | 9,610 psi | D695 |
| Compressive Modulus, psi | 141,000 psi | D695 |
| Glass Transistion Temperature, DMA: | 122°F | D3386 |
| Coefficient of Thermal Expansion, Range 77-100°F | 3.51 x 10-5 in./in./°F | D696 |
PACKAGING WEIGHTS
| 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.) |
| Kit | 2.88 lb. | 9.6 lb. | 62 lb. |
SAFETY & HANDLING
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.