Plexus MA 425 Long Open Time All Purpose Adhesive
Plexus Plexus
  • Plexus MA 425 Long Open Time All Purpose Adhesive

Plexus MA 425 Long Open Time All Purpose Adhesive

Plexus MA 425 380 ml cartridge kit is strong adhesive commonly used in boatbuilding and gluing of plastics. This glue has a 10:1 mix ratio and a 30 to 35 minute working time. It is blue in color and features a long open time for ease of use. MA 425 is used often when a the application may take more time. Most other Plexus adhesives have a rapid cure time, and can harden before applied properly. MA 425 does not.
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$95.98 / ea
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Tech Spec Product Info User Generated Content
This product requires a Plexus Manual Application Gun (COM-301141) and Plexus Mixing Nozzles (COM-301143) to apply the product.
Product  MA 425 
Description / Potential Substrates  All Purpose Adhesive, Long Open Time 
Color  Blue 
Mix Ratio by Volume  10:1 
Viscosity (cP)  A: 100,000-125,00, B: 40,000-60,000 
Working Time (min.)  30-35 
Fixture Time (min.)  80-90 
Tensile Strength (psi)  2000-2500 
Tensile Elongation (percentage)  120-140 
Shear Strength (psi)  1500-1800 
Wearing gloves and a respirator is recommended.
BRAND: Plexus
Material: Methacrylate
Number Of Parts: Two Part
Rate Of Cure: Fast
Strength: Strong
Type: Structural Adhesive
Usage: Bonding
5 1


by PowerReviews
Plexus MA 425 Long Open Time All Purpose Adhesive

(based on 1 review)

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Reviewed by 1 customer

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(1 of 1 customers found this review helpful)


Expensive but worth it

By Penguin

from Miami Fl

About Me Advanced

Verified Reviewer


  • Easy to Use
  • Strong


    Best Uses

      Comments about Plexus MA 425 Long Open Time All Purpose Adhesive:

      Used the MA425 to bond a deck to hull. Tests prior to actually bonding the deck proved this stuff sticks. To get it apart, plan on destroying the part. My test was on fiberglass foam core panels, the glass had a peelply finish.

      The dispenser gun is solid and works very well. I had no problems at all with the stuff, not a single misplaced bead.

      The stuff mashes well and does not require much clamping pressure. You might need spacers to keep it from squashing too thing but it won't run on vertical surfaces, it stays where you put it.

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