Description

Loctite EA 3501HT High Temperature Heat Curing Seam Sealant

Henkel Loctite EA 3501HT Heat Curing Seam Sealant Overview

Loctite EA 3501 HT is a single-component, flexible, heat-curing seam sealant designed for primed or bare, oily metals, making it ideal for e-coat and powder coat processes. This gray, epoxy-based sealant is perfect for high-temperature paint bake applications, including metal pre-treatment, e-coating, primer paint, and powder/top-coat stages. Suitable for a wide range of substrate gauges, from thin sheet metals to rigid castings and extrusions, it excels in sealing seams between welded or bonded joints, overlap joints, and butt joints. Loctite EA 3501 HT maintains its performance up to 437°F (225°C) and is pumpable without preheating, allowing for easy application and smoothing by hand or with a smoothing agent. Its compatibility with most metal pre-treatment processes further enhances its versatility and reliability for demanding industrial applications.

Features and Benefits

• Exceptional Adhesion: Provides excellent adhesion to bare and oily metals, ensuring a strong and reliable bond in challenging environments.
• Ideal for E-Coat and Powder Coat Applications: Specially formulated for seamless integration with e-coat and powder coat processes, maintaining performance throughout high-temperature curing stages.
• High-Temperature Stability: Retains flexibility, adhesion, and color at temperatures up to 437°F (225°C), offering a robust solution for high-temperature paint bake processes.
• User-Friendly Application: Pumpable without preheating, making it easy to apply and smooth by hand or with a smoothing agent, reducing application time and effort.
• Enhanced Safety Profile: Formulated with improved health and safety in mind, minimizing risks associated with handling and application.
• Versatile Compatibility: Compatible with a wide range of metal pre-treatment processes, making it a versatile choice for various industrial applications.

Specifications

• Series: Loctite EA 3501HT
• Chemical Type: Epoxy
• Appearance: Gray Paste
• Components: One Component
• Cure: Heat Cure
• Application: Seam Sealing
• Viscosity: High; 480,000 cps @ 73°F (23°C)
• Specific Gravity: 1.35 @ 77°F (25°C)
• Solids Content: 100%
• Sag Resistance:
  • Vertical Sag Method B: 0 mm
  • Horizontal Sag Method B: 0 mm
• Curing Performance:
  • Typical Cure: 30 Minutes @ 347°F (175°C)
  • Maximum Cure: 30 Minutes @ 437°F (225°C)
  • Minimum Cure: 30 Minutes @ 320°F (160°C)
• Shore Hardness, Durometer A: 75
• Glass Transition Temperature: 86°F (30°C)
• Low Temp Mandrel Bend @ -40°F (-40°C): No Cracking or Adhesion Loss
• Tensile Modulus: 1401 PSI (9.7 N/mm²)
• Tensile Strength: 348 PSI (2.4 N/mm²)