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Master Bond adhesives
Aptek 2503R-A/B Premeasured conformal urethane coating repair kit
Categories: Polymer; Adhesive; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Adhesive

Material Notes: APTEK 2503-A/B is an unfilled, two component, electrically insulating, transparent, flexible urethane coating system designed for the encapsulation and protection of electrical/electronic components mounted on printed circuit boards.

Ideal for repair-ready-to-use; Fully compatible with APTEK 2503-A/B conformal coating as well as other commercially available urethane coatings; Excellent reversion resistance for good physical stability under high heat and humidity environments; Tg below -70ÂșC for excellent low temperature cycling, storage and performance; Excellent substrate adhesion, superior to silicones; Exceeds NASA outgassing requirements for high vacuum environments; Fluoresces under black-light (UV) to facilitate QC inspection of coating coverage of repaired components/substrates.

APTEK 2503R-A is an unfilled polyol resin containing solvent and is thus considered a flammable liquid and should be treated with caution. . APTEK 2503R-B is an organic isocyanate and is safe to handle when used properly. .

Information provided by Aptek Laboratories, Inc.

Vendors:
Available Properties
  • Outgassing - Total Mass Loss, Cured property; at 10E-6 torr; ASTM E595
  • Collected Volatile Condensable Material, Cured property; at 10E-6 torr; ASTM E595
  • Hardness, Shore A, Cured property; ASTM D2240
  • Tensile Strength, Ultimate, Cured property; ASTM D412
  • Elongation at Break, Cured property; ASTM D412
  • CTE, linear, JMTP P200, Cured property; alpha 1
  • Glass Transition Temp, Tg, Cured property; JMTP P200
  • Flash Point, A Component; ASTM D92
  • Flash Point, B Component; ASTM D92
  • Transmission, Visible, transparent; thickness not quantified
  • Processing Temperature, Cure 8 hrs
  • Processing Temperature, Cure 5 hrs
  • Processing Temperature, Cure 2 hrs
  
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Manufacturer Notes:
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Category Notes
Plastic

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