Applications

Bostik Born2Bond Structural Two-Part Hybrid Adhesive

Brand: Bostik
Product Number: Structural
Technology: Ethyl Cyanoacrylate & Methoxyethyl Cyanoacrylate Blend
Color: Transparent
Cure Type: Room Temperature Curing
Package Size: Contact us for details
Shelf Life: 12 months

Product Description

Bostik Born2Bond Structural is a two-component hybrid adhesive designed for structural bonding applications. It provides fast fixture time, high mechanical strength, and excellent gap-filling properties up to 5 mm. This adhesive offers strong adhesion to a wide range of materials, including metals, plastics, elastomers, wood, and chipboard. It exhibits good resistance to temperature variations, humidity, and mechanical stress, making it ideal for industrial bonding applications.

Key Features

  • Fixture time in 30 seconds
  • High adhesion strength (>6 MPa after 5 min)
  • Open time of 25 minutes
  • Fills gaps up to 5 mm
  • Excellent adhesion to various substrates (excluding polyolefins)
  • Transparent when cured
  • Good temperature and humidity resistance
  • Gel consistency for precise application

Recommended Applications

  • Structural bonding
  • Magnet bonding
  • Gap filling
  • Glass bonding
  • Elastomer bonding
  • Plastic bonding
  • Metal bonding

Technical Data

Typical Uncured Properties
Property Value
Base Technology Ethyl Cyanoacrylate & Methoxyethyl Cyanoacrylate Blend
Mix Ratio (A:B) 4:1
Appearance/Color Transparent
Gap Filling Capacity 5 mm
Open Time 25–35 min
Mixer Life 25–35 min
VOC Content (Part A) 67 g/L
VOC Content (Part B) 1 g/L
Typical Cured Properties
Property Value
Shore Hardness (D) 65
Heat Deflection Temperature (HDT) 55°C
Tensile Strength 16 MPa
Elastic Modulus 800 MPa
Elongation at Break 17%
Glass Transition Temperature (Tg) 91°C
Coefficient of Thermal Expansion 60 × 10⁻⁶
Linear Shrinkage 11.5%
Water Absorption (24 hrs) 1.3%
Impact Resistance 26.6 kJ/m²
Volume Resistivity 4.6 × 10¹¹ ohm·m
Surface Resistivity 3.3 × 10¹⁴ ohm
Dielectric Strength 93 kV/mm
Bonding Performance (Lap Shear Strength @ 23°C)
Substrate Strength (MPa)
Grit-Blasted Mild Steel 14 ± 1
Aluminum (A5754) 12 ± 1
ABS 6 ± 1 (SF*)
PVC 5 ± 1
Phenolic 8 ± 1
Polycarbonate 7 ± 1 (SF*)

(*SF = Substrate Failure)

Curing Speed by Substrate (Fixture Time at 0.1 N/mm²)
Substrate Fixture Time
Stainless Steel 30–90 sec
Mild Steel 15–45 sec
Aluminum 15–100 sec
Neoprene 60–100 sec
EPDM 30–75 sec
ABS 35–100 sec
PVC 15–80 sec
Polycarbonate 40–120 sec
Phenolic 120–150 sec
Wood (Oak) >15 min
Wood (Pine) 100–150 sec
Environmental Resistance (% Retained Strength Over Time)
Condition 100 hr 500 hr 1000 hr
Motor Oil (40°C) 119% 118% 109%
Ethanol (23°C) 105% 71% 59%
Gasoline (23°C) 104% 94% 94%
IPA (23°C) 112% 100% 97%
Water (23°C) 105% 95% 94%
Humidity Resistance (95% RH, 40°C)
Substrate 100 hr 500 hr 1000 hr
Grit-Blasted Mild Steel 96% 93% 79%
Polycarbonate 89% 95% 103%

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