Dymax 984-T

Dymax 984-T Datasheet
  • Description for Dymax 984-T

    A single component, 100% solids conformal coating specifically formulated for rapid room temperature cure when exposed to long-wave (320-380 nanometer) UV light.

    *See Terms of Use Below

    Application Type Bond, Adhesive: Instant Adhesives
    1 Part or 2 Part 1 Part
    Material Form Liquid
    Substrate Ceramic, Copper, Glass-filled epoxy surfaces, Metal
    Manufacturer Dymax
    Chemistry Solvent-Free
    Cure Method Heat, UV
    Cure Temperature (°C) 25, 107, 121, 149
    Cure Time (min) Rapid, 60, 30, 15
    Viscosity (cPs) Moderately Low, 2,500
    Color Clear
    High Temperature Resistance (°C) 149
    Low Temperature Resistance (°C) -54
    Key Specifications passes UL-94 Flammability rating, Mil-Spec (United States Military Standard): approved to Military specification MIL-I-46058
  • Technical Data for Dymax 984-T

    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Liquid
    • Substrate
    • Industry
      • Other - Conformal coating
    • Chemistry
    • Application Method
      • Spray
      • Dip
    • Cure Method
      • UV / Visible Light - UV
      • Heat
    • Color
      • Clear / Transparent - Clear
    • Key Specifications
      • UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association) - passes UL-94 Flammability rating
      • Mil-Spec (United States Military Standard): I-46058-C - approved to Military specification MIL-I-46058
    Cure Specs
    Cure Temperature (°C) 25, 107, 121, 149 Test Method
    Cure Time (min) Rapid, 60, 30, 15 Test Method
    Viscosity (cPs) Moderately Low, 2,500 Test Method
    Work / Pot Time (min) 518,400
    Bond Strength
    Structural/Load-Bearing Structural
    Tensile Strength (psi) 6,200 Test Method
    Material Resistance
    High Temperature Resistance (°C) 149
    Low Temperature Resistance (°C) -54
    Dissipation Factor 0.03000 Test Method
    Dielectric Strength (V/mil) 1,800 Test Method
    Dielectric Constant 3.41 Test Method
    Volume Resistivity (O) 35.8e13 (ohm-cm) Test Method
    Surface Resistivity (O) 384e14 (ohm) Test Method
    Shore D Hardness 85 to 90 Test Method
    Elongation (%) >10 Test Method
    Other Properties
    Specific Gravity 1.100
    Coefficient of Thermal Expansion (CTE) 69e-6 (in/in/oC) Test Method
    % Solids (%) 100
    Business Information
    Shelf Life Details This material has a minimum 12-month shelf life from date of shipment, unless otherwise specified, when stored between 10°C [50°F] and 32°C [90°F] in the original, unopened container.
    Shelf Life Temperature (°F) 50 to 90
    Shelf Life (mon) >12
  • Best Practices for Dymax 984-T

    *See Terms of Use Below

    1. Application

      Typically Dymax 984-T is dipped or sprayed.

    2. Curing

      Heat can be used as a secondary cure mechanism where all adhesive cannot be cued with UV light. UV cure must be done prior to heat cure. Application may employ dip, spray or curtain coat.

      FACTORS AFFECTING CURING: Dark surfaces lengthen cure time. Thicker films require longer cure times.

      Full range (UV-A, B & C) lamps provide faster cures than filtered sources.

      All UV sources degrade with use. Check output periodically with a radiometer.

      Light intensity decreases as distance from UV source increases.

    3. Removal

      Adhesive may be removed with hand soap and water.

      Wipe excess adhesive with paper towels, remove residue with chlorinated solvents, freon, methanol, ethanol, or isopropanol

  • Comparable Materials for Dymax 984-T

    *See Terms of Use Below

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Cure Temperature Test Methods
Cure Temperature Cure Time Test Method
107°C Heat Cure
Cure Time Test Methods
Cure Time Test Method
60 min Heat Cure
30 min
15 min
Viscosity Test Methods
Viscosity Test Method Temperature
Moderately Low
2,500 cPs Measured at 20 rpm and 25 [C] using a Brookfield Model RVF viscometer.,(nominal) 25°C
Tensile Strength Test Methods
Tensile Strength Test Method
6,200 psi ASTM D-638-77A
Dielectric Constant Test Methods
Dielectric Constant Temperature Test Method
3.41 23°C ASTM D-1304, 1 MHz
Dielectric Strength Test Methods
Dielectric Strength Test Method
1,800 V/mil ASTM D-1304
Dissipation Factor Test Methods
Dissipation Factor Temperature Test Method
0.03000 23°C ASTM D-1304, 1 MHz
Volume Resistivity Test Methods
Volume Resistivity Test Method
35.8e13 (ohm-cm) ASTM D-1304
Surface Resistivity Test Methods
Surface Resistivity Test Method
384e14 (ohm) ASTM D-1304
Elongation Test Methods
Elongation Test Method
>10 % (at Break), ASTM D-638-77A
Shore D Hardness Test Methods
Shore D Hardness Shore Hardness Test Method
85 to 90 ASTM D-2240
Coefficient of Thermal Expansion (CTE) Test Methods
Coefficient of Thermal Expansion (CTE) CTE Test Method
69e-6 (in/in/oC) Linear