Applications

DOWSIL™ EA-2626 Adhesive – Two-Component Fast-Curing Adhesive for Automotive & Appliance

  • Item Name: DOWSIL™ EA-2626 Adhesive
  • Manufacturer: Dow
  • Technology: Two-component, room-temperature curing, non-self-leveling adhesive
  • Cure Type: Neutral alkoxy cure
  • Color: Grey (RAL 7000) or Special Black (RAL 7021)
  • Package Size: Contact Techniq VN for details
  • Shelf Life: 12 months for base (≤ 32°C), 5 months for catalyst (≤ 25°C)

1. Product Overview

DOWSIL™ EA-2626 Adhesive is a two-component, room-temperature curing, non-self-leveling adhesive. It offers excellent adhesion to a variety of substrates, including plastics, metals, and glass. The fast cure time and durable properties make it suitable for applications requiring strong, heat-resistant bonds.

2. Applications

  • Ideal for bonding components with different thermal expansion rates.
  • Used in automotive manufacturing, particularly for headlamp and fog lamp assembly (bonding polycarbonate/glass lenses to reflectors).
  • Suitable for appliance manufacturing, including oven and ceramic hob assembly (bonding glass to metal, painted metal, or plastic).

3. Typical Properties

Unmixed Components

Property Unit DOWSIL™ EA-2626 Base SILASTIC™ Q3-3636 Catalyst (Grey) SILASTIC™ Q3-3636 Catalyst (Special Black)
Appearance White paste Grey Black
Viscosity mPa.s 205,000 18,000 – 48,000 ~350,000
Specific Gravity 1.36 1.00 1.04

Mixed Properties (100:13 Base to Catalyst Ratio)

Property Unit Result
Working Time (Snap) minutes 6 – 9
Tack-Free Time minutes 11 – 18
Flow mm < 2
Specific Gravity 1.32 – 1.33
Color RAL Code 7000 (Grey), 7021 (Black)

Cured Properties (7 Days at 23°C, 2mm sheets)

Property Unit Grey Special Black
Durometer Hardness Shore A 43 45
Tensile Strength MPa >1.9 >1.9
Elongation at Break % >200 >200

Adhesion Tests (24 Hours at 23°C)

Substrate Combination Lap Shear Strength (MPa) Cohesive Failure (%)
PC / PP (Plasma Treated) >1.0 100 / 100
PC / Glass >1.0 100 / 100
PBT-ASA / Glass >1.0 100 / 100

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