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Two-Component Structural Adhesives

3M™ Scotch-Weld™ Two-Component Structural Adhesives


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These are adhesives based on epoxy resin, acrylic or polyurethane. They are formulated for various materials 
and applications demanding a strong and durable bond.

Proper mixing of the two components in the specified
ratio will start the hardening reaction (netting) 
resulting in a reliable and structurally strong bond.

Thanks to a two-chamber cartouche the adhesive is pressed out in the specified ratio. The cartouche mouth is fitted with a mixing nozzle which 
mixes the adhesive before it gets to the bonded surface.

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This system prevents the adhesive components from mixing in an improper ratio and it provids a perfect mixing which is necessary for proper adhesive hardening.

 

To make the use of these adhesive easier and more efficient 3M™ introduced the EPX™ system to the market. 
The application of Scotch-Weld™ EPX™ adhesives is very fast, easy and economical thanks to a clever system of cartouches and nozzles.

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3M™ Scotch-Weld™ Structural Adhesives

  • bond various materials
  • suitable for fine repairs
  • high strength bonds
  • by bonding larger surfaces the spot stress is reduced (fasteners, rivets, welding spots)
  • a layer of the adhesive separates the materials, which prevents electrolytical corrosion
  • 3M™ Scotch-Weld™ EPX™ adhesives are available in a practical two-chamber cartouche

 

Two-Component Structural Adhesives

 

Type Mixing ratio
Color Processing time
Strength reaching time Peel strength Aluminum (N/cm) Shear strength
Typical materials
Properties
-55°C 23°C 82°C
1838B/A 5:4 green 60 min 8 hrs 7 10.3 20.7 3.4 Metals Resistant to oils and fuels.
2216B/A 3:2 light gray
90 min 8-12 hrs 44 13.8 17.2 2.8 Metals, plastics, wood, glass, rubber Flexible adhesive, outstanding impact resistance.
3520B/A 1:1 clear 90 min 8-10 hrs 7 14 17.5 2.8 Metals, plastics Outstanding environmental resistance.
3532B/A 1:1 brown 5-10 min 25-30 min 35 17.2 (-40°C) 13.8 2.1 Plastics, wood Fast, strong, flexible, excellent for plastics.
9323B/A 29:100 orange 90-120 min 2-4 hrs 58 37.9 36.2 22.1 Metals, plastics, composites Outstanding strength on metals.
7231B/A 10:7 gray 60-120 min 6-8 hrs Bond strength is higher than cohesion strength of material. PVC, rubber
and other flooring materials
Developed specifically for bonding flooring materials. E.g. in the means of public transport.

 

Scotch-Weld™ EPX™ Products

 

Type Color Properties
Mixing ratio (B:A) Processing time (min) Strength reaching time
Viscosity Shear strength (aluminum/MPa) Peel strength (aluminum-N/cm)
-55°C 23°C 82°C
DP100 almost clear
very fast
1:1 3-5 15 liquid 6.5 9 2.1 4
DP105 clear highly clear,flexible 1:1 4-6 20 very liquid 24.6 14 2.1 62
DP110 transparent outstanding properties for bonding metals 1:1 8-10 20 controlled dosage
14.0 17.6 1.3 35
DP125 gray flexible 1:1 25 150 controlled dosage 23.9 30.2 2.8 62.5
DP190 gray pressure resistant
1:1 90 240-360 controlled dosage 10.5 17.6 2.8 53
DP270 clear/black does not cause corrosion of copper
1:1 60-70 240-420 liquid 8.4 17.2 2.1 3
DP410 gray outstanding durability
2:1 8-10 30 thixotropic 28.9 34 8.4 100
DP460 beige outstanding durability 2:1 60 240-360 controlled dosage 31.6 31.5 4.9 105
DP490 black suitable also for higher temperatures
2:1 180 240 thixotropic 23.7 30.2 11.8 92
DP609 beige polyurethane 1:1 7 30 thixotropic 17.5* 14 2.1 35
DP610 white polyurethane 1:1 10 60 liquid 33.9* 22.9 2.7 78
DP760 white temp resistance up to 175°C 2:1 60-80 480 paste 21.9 30.4 25.9 160
DP801 green akrylate 1:1 2-4 7 controlled dosage   13   101
DP810 green akrylate 1:1 8-10 10 controlled dosage 8.5 29.9 3.5 52.6
DP8005 white bonding of PP and PE 10:1 4 20 paste   7.9 5.7 30

 

Note: *(-40°C)