Structural Adhesives

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Overview
Performance Characteristics
Typical Applications
Typical Properties
Overview
Plexus® methacrylate structural adhesives, based on patented technology, are designed for structural bonding of nearly all thermoplastics, metals, and composite materials.

A key benefit of these structural adhesives is their ability to provide extremely durable bonds with little or no surface preparation. Plexus adhesives have a proven record of outstanding performance in the most demanding applications in the:

  • Transportation
  • Marine
  • Engineering construction industries



Metal Bonder Adhesives

Plexus® self-priming metal bonder adhesives - MA420FS, MA205HV, MA830, and MA832 - have proven themselves as alternatives to welding and mechanical fasteners in specialty vehicle and outdoor electric sign applications.

For service in corrosive environments, we offer an aluminum surface conditioner, PC120, to protect aluminum substrates from corrosion in service. Metal bonder adhesive grades are also available with uniform diameter 0.012" glass beads which serve as in-situ stand-offs to ensure proper adhesive bondline thickness.

Adhesive Application Equipment
Several types of application equipment are available, ranging from small application guns to M/M/D equipment for use with drums.

Plexus Standard Packaging

  • 50ml cartridges (1:1 products)
  • 380ml cartridges (10:1 products)
  • 400ml cartridges (1:1 products)
  • 5 gallon pails
  • 55 gallon drums

Plexus Grades

Plexus MA205High strength, high toughness, fast cure at room temperature
MA300All purpose adhesive
High strength
MA310High strength use with difficult to bond plastics
MA3940Unique combination of excellent fatigue endurance, outstanding impact resistance, and superior toughness
MA420FSUltrafast adhesive with a fixture time of 3-4 minutes
MA530All purpose adhesive high strength/high toughness medium open time
MA560-1All purpose adhesive high strength/high toughness long open time
MA590All purpose, long open time product and bond lines
up to 1" thick
MA3940Formulated to eliminate problems associated with adhesive sag
MA2045Two-part methacrylate adhesive for structural bonding of composite, thermoplastic and metal assemblies.
MA2090Formulated to eliminate problems associated with adhesive sag
AO420All purpose adhesive
High toughness
MA830All purpose adhesive high strength/high toughness no primer metal bonding
MA832All purpose adhesive high strength/high toughness no primer metal bonding
PC-120 Primer/ConditionerChemical primer and conditioner designed to improve the long term durability of Plexus adhesives

NOTE: Numerous additional grades of Plexus adhesives are available. For additional information on structural adhesives, contact your local Curbell Plastics representative or call Curbell at 1-888-287-2355.

One-Part, Moisture-Curing, Elastomeric Adhesive Sealants

SoudaSeal SMX® — one-part, moisture-curing, silane-terminated polymer adhesive/sealants — were developed for demanding bonding and sealant applications for trucks, buses, rail, RV, specialty vehicles, boats, enclosures and composite structures.

  • Silicone-free
  • Solvent-free
  • Isocyanate free
  • UV-resistant
  • Weather-resistant

SoudaSeal Grades Available

SoudaSeal AP

All-purpose, our most economical
Available in 10.1 fl oz cartridges & 20 fl oz sausages

SoudaSeal 50LM

Low-modulus, high movement capability
Available in 10.1 fl oz cartridges & 20 fl oz sausages

SoudaSeal 150LM

Ultra low-modulus, high movement capability
Available in 10.1 fl oz cartridges & 20 fl oz sausages

SoudaSeal SL

Self-leveling, ideal for sealing horizontal expansion joints
and cracks
Available in 20 fl oz sausages & 29 fl oz pro pack

SoudaSeal FC

Fast curing, high initial tack
Available in 10.1 fl oz cartridges & 20 fl oz sausages

SoudaSeal CL

Crystal clear
Available in 10.1 fl oz cartridges


NOTE: A variety of standard colors are available.
These products can also be custom-tinted to match your sample
(minimum order applies).
Performance Characteristics
  • Operating temperature window: -40°F to 180°F
  • Excellent adhesion
  • Gap filling
Typical Properties

Plexus® Structural Adhesives

Product Description Color Mix Ratio by Vol. Viscocity, cP Working Time min Fixture Time min Tensile Strength psi Tensile Elongation % Shear Strength psi
MA300 All purpose adhesive
High strength
Cream Black 1:1 A: 40,000-60,000
B: 40,000-60,000
4-6 12-15 3000-3500 15-25 3000-3500
MA310 High strength Use with "difficult to bond" plastics Cream 1:1 A: 40,000-60,000
B: 40,000-60,000
15-18 30-35 4000-4500 5-15 3000-3500
MA530 All purpose adhesive
High strength/
High toughness Medium open time
Black 1:1 A: 160,000-180,000
B: 160,000-180,000
30-35 90-160 3000-3500 130-170 1900-2200
MA560-1 All purpose adhesive
High strength/
High toughness Long open time
Black 1:1 A: 145,000-185,000
B: 170,000-205,000
55-70 220-240 2500-3000 >130 1700-2200
MA590 All purpose adhesive
High strength/
High toughness Long open time
Black 1:1 A: 175,000-220,000
B: 175,000-220,000
90-105 210-270 2000-2500 130-160 1400-1800
AO420 All purpose adhesive
High toughness
Blue
Black
Cream
10:1 A: 100,000-125,000
B: 50,000-70,000
4-6 15-18 2700-3000 100-125 1750-2250
MA685 Water-clear Clear 10:1 A: 18,000-24,000
B: 30,000-40,000
7-12 18-25 3500-4500 t.b.d. t.b.d.
MA830 All purpose adhesive
High strength/
High toughness
No primer metal bonding
Gray 10:1 A: 90,000-120,000
B: 50,000-80,000
4-6 20-25 3200-3800 30-60 2300-2800
MA832 All purpose adhesive
High strength/
High toughness
No primer metal bonding
Gray 10:1 A: 90,000-120,000
B: 50,000-80,000
12-16 50-60 3500-4000 30-60 2300-2800
Source: ITW Plexus®, Plexus® Structural Adhesives

SoudaSeal Property Comparison

Product Movement Capability % Elongation Tensile Yield Skin Formation Tack Free Time
AP +/- 35% 800% 250 psi 18 min 60 min
50LM +/- 50% >1000% 230 psi 11 min 100 min
150LM +100%/-50% >1000% 165 psi 18 min 100 min
SL +/-25% 400% 150 psi 50 min 60 min
FS +/-25% 500% 400 psi 5 min 20 min
CL +/-25% 300% 330 psi 3 min 30 min
Source: Soudal, Inc.
NEED MORE INFORMATION?
Contact Curbell Plastics at 1-888-287-2355 for more specific information about structural adhesives or complete our request for quote online form.