PPG Aerospace PR 1826 Adh Pro Datasheet PPG Aerospace PR 1826 Adh Pro

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  • Description for PPG Aerospace PR 1826 Adh Pro

    A rapid cure, aircraft integral fuel tank sealant. A two-part, epoxy cured polythioether compound. It can cure at low temperatures and is unaffected by changes in relative humidity. This sealant has excellent adhesion to common aircraft substrates.

    *See Terms of Use Below

    Application Type Sealant
    1 Part or 2 Part 2-Part
    Material Form Thixotropic paste
    Substrate Alodine aluminum , Anodized Aluminum , Titanium, Stainless Steel
    Industry Aircraft integral fuel tank
    Manufacturer PPG Aerospace
    Chemistry P-3 polythioether, Epoxy
    Cure Method Part A/Part B
    Cure Time (min) Rapid
    Viscosity (cPs) 15700 (Poise)
    Color Dark Gray
    High Temperature Resistance (°C) 160
    Low Temperature Resistance (°C) -62
    Key Specifications AMS (Aerospace Material Spec): AMS 3277: Type I, Class B

  • Technical Data for PPG Aerospace PR 1826 Adh Pro

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    Overview
    • Application Type
      • Sealant
    • 1 Part or 2 Part
      • 2-Part
    • Material Form
      • Paste - Thixotropic paste
    • Substrate
      • Aluminum - Alodine aluminum
      • Titanium
      • Anodized Aluminum - Anodized Aluminum
      • Stainless Steel - Stainless Steel
      • Other - IFT coating
    • Industry
      • Aircraft - Aircraft integral fuel tank
    • Chemistry
      • Epoxy
      • Other - P-3 polythioether
    • Cure Method
      • 2-Part Cure - Part A/Part B
    • Color
      • Gray - Dark Gray
    • Key Specifications
      • AMS (Aerospace Material Spec) : AMS 3277 : Type I, Class B
    Specifications
    Cure Specs
    Cure Time (min) Rapid
    Viscosity (cPs) 15700 (Poise) Test Method
    Tack Free Time (min) <60, <120, <720
    Mix Ratio 8.5:100 (by weight)
    Bond Strength
    General Bond Strength (psi) Excellent
    Peel Strength (piw) 51 (pli), 45 (pli), 46 (pli), 45 (pli), 39 (pli), 59 (pli), 58 (pli), 56 (pli), 59 (pli), 55 (pli) Test Method
    Tensile Strength (psi) 350, 230 Test Method
    Material Resistance
    High Temperature Resistance (°C) 160
    Low Temperature Resistance (°C) -62
    Hardness
    Shore A Hardness 47 Test Method
    Elongation (%) 350, 225 Test Method
    Other Properties
    Specific Gravity 1.470 Test Method
    Business Information
    Shelf Life Details The storage life of PR-1826 Class B is at least 9 months when stored at temperatures below 80°F (27°C) in original, unopened containers.
    Shelf Life Temperature (°F) <80
    Shelf Life (mon) >9

  • Best Practices for PPG Aerospace PR 1826 Adh Pro

    *See Terms of Use Below

    1. Surface Preparation

      Immediately before applying sealant to primed substrates, the surfaces should be cleaned with solvents. Contaminants such as dirt, grease, and/or processing lubricants must be removed prior to sealant application.

      A progressive cleaning procedure should be employed using appropriate solvents and a new lint-free cloth conforming to AMS 3819. (Reclaimed solvents or tissue paper should not be used.) Always pour solvent on the cloth to avoid contaminating the solvent supply. Wash one small area at a time.

      It is important that the surface is dried with a second clean cloth prior to the solvent evaporating to prevent the redeposition of contaminants on the substrate.

      Substrate composition can vary greatly. This can affect sealant adhesion. It is recommended that adhesion characteristics to a specific substrate be determined prior to application on production parts or assemblies.

      After the surface has been cleaned, apply PR-1826AP Adhesion Promoter with a clean brush or a gauze pad. Care must be taken to obtain a uniform thin coat. At standard temperature, allow the adhesion promoter to dry 30 minutes. It is not recommended to apply adhesion promoter below 45°F (7°C). The sealant must be applied within 8 hours of the application of the adhesion promoter. If this time is exceeded, the surface should be recleaned and the adhesion promoter reapplied. Do not use adhesion promoter if it contains particles or precipitate.

  • Comparable Materials for PPG Aerospace PR 1826 Adh Pro

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    Spec Engine® Results

    • PPG Aerospace
      PR-1828 Class B(PPG Aerospace)

      An aircraft integral fuel tank sealant. It has a service temperature range from -80°F (-62°C) to 320°F (160°C), with intermittent excursions up to 420°F (216°C).

    • PPG Aerospace
      PR-1829 Class B(PPG Aerospace)

      A rapid curing aircraft windshield and canopy sealant. This material is designed for fillet sealing of glass, polycarbonate, acrylic and other aircraft sealing applications.

    • PPG Aerospace
      PR-2001 Class B-1/2(PPG Aerospace)

      A rapid cure, low odor, aircraft integral fuel tank, fuselage and aerodynamic smoothing sealant. It has a service temperature range from -80 °F (-62°C) to 320 °F (160 °C).

    • Compare All
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Viscosity Test Methods
Viscosity Test Method
15700 (Poise) Brookfield #7 @ 2 rpm
Peel Strength Test Methods
Peel Strength Substrate Chemical Test Time Test Temperature Test Method
51 (pli) Anodized aluminum 10,080 min 60°C 100% cohesion, AMS 2629 JRF immersion, AMS 2471
45 (pli) Titanium 10,080 min 60°C 100% cohesion, AMS 2629 JRF immersion, AMS 4901
46 (pli) Stainless steel 10,080 min 60°C 100% cohesion, AMS 2629 JRF immersion, AMS 5516
45 (pli) Alodine aluminum 10,080 min 60°C 100% cohesion, AMS 2629 JRF immersion, MIL-C-5541
39 (pli) IFT coating 10,080 min 60°C 100% cohesion, AMS 2629 JRF immersion, MIL-C-27725
59 (pli) Anodized aluminum NaCl-H2O 10,080 min 60°C 100% cohesion, AMS 2629 JRF immersion, AMS 2471
58 (pli) Titanium NaCl-H2O 10,080 min 60°C 100% cohesion, AMS 2629 JRF immersion, AMS 4901
56 (pli) Stainless steel NaCl-H2O 10,080 min 60°C 100% cohesion, AMS 2629 JRF immersion, AMS 5516
59 (pli) Alodine aluminum NaCl-H2O 10,080 min 60°C 100% cohesion, AMS 2629 JRF immersion, MIL-C-5541
55 (pli) IFT coating NaCl-H2O 10,080 min 60°C 100% cohesion, AMS 2629 JRF immersion, MIL-C-27725
Tensile Strength Test Methods
Tensile Strength Test Time Test Temperature Test Method
350 psi 10,080 min 25°C Standard cure, 50% RH
230 psi 10,080 min 25°C Standard heat cycle
Elongation Test Methods
Elongation Test Method
350 % Standard cure, 7 days @ 77°F (25°C), 50% RH
225 % Standard heat cycle
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method
47 Cured 7 days @ 77°F (25°C), 50% RH
Specific Gravity Test Methods
Specific Gravity Test Method
1.470 Cured 7 days @ 77°F (25°C), 50% RH