DEVCON PLASTIC WELDER
Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other

Main features
- Steel-to-Wood Methacrylate Bonding
- 3-Minute Open Time
- 20.6 MPa Cured Tensile Strength
Product Description
DEVCON® Plastic Welder™ White is a two-component, toughened structural adhesive formulated to produce high-strength load-bearing bonds on engineered plastics and other substrates. The room-temperature curing adhesive features a non-sag formulation, a convenient 1:1 mix ratio, and rapid fixture in thin bond lines. It is designed for bonding PVC, fiberglass, ABS, FRT, PPO, PC/PBT, Metton®, Lomod®, Valox®, Noryl®, GTX, Minlon®, epoxy, RIM urethane, wood, and other difficult substrates where outdoor weathering or solvent exposure is anticipated.
Key Features
- Toughened structural adhesive for high-strength load-bearing bonds on engineered plastics.
- Room-temperature curing 1:1 system with rapid fixture and non-sag application.
- Minimal surface preparation required for many bonding applications.
Applications / Suitable for
- Bonding PVC, ABS, fiberglass and engineered plastics.
- Bonding epoxy, RIM urethane and wood.
- Applications exposed to outdoor weathering or solvent exposure.
- Structural bonding requiring rapid handling strength.
TDS, SDS & Technical Documents
Technical Specifications
Physical Properties
Thermal Properties
Mechanical Properties
Additional Information
Devcon® Plastic Welder
Devcon Plastic Welder is a two-part, room-temperature-curing methacrylate adhesive for load-bearing bonds across supported plastics and dissimilar materials. The 1:1 system forms a non-sagging gel, fixtures rapidly, and provides documented strength on ABS, polycarbonate alloy, grit-blasted steel, and other listed substrates.
Devcon Plastic Welder two-part methacrylate adhesive for supported plastic and mixed-material assemblies.
As-Supplied and Cure-Progression Properties
Typical component, mixed-material, and cure-timing data at 22°C unless otherwise stated. Values are representative and are not specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Product type | Two-part toughened methacrylate structural adhesive | — | Room-temperature-curing adhesive and activator |
| Mix ratio | 1:1 | — | Adhesive to activator; ratio basis is not stated in the supplied technical data sheet |
| Viscosity - adhesive | 45,000 | cP | As supplied |
| Viscosity - activator | 40,000 | cP | As supplied |
| Mixed viscosity | Non-sagging gel | — | Thixotropic mixed state |
| Color | Off-white | — | Mixed material |
| Density - adhesive | 1.00 | kg/L | As supplied |
| Density - activator | 0.97 | kg/L | As supplied |
| Mixed density | 1.00 | kg/L | Mixed material |
| Open time | 3 | min | At 22°C; maximum time after application for surface wetting |
| Assembly time | 6 | min | At 22°C; mate and position parts before cure progression prevents disturbance |
| Fixture time | 12 | min | At 22°C; defined by a 1 kg dead weight on a 12.7 mm overlap joint, 25.4 mm wide |
| Functional cure | 1 | h | At 22°C |
| Full cure | 4 | h | At 22°C |
| Coverage | 980 | cm² per 25 mL | At a 0.25 mm applied thickness |
| Order configuration | DS-220 | 25 mL Dev-Tube | Supplied regional technical data sheet |
Surface Preparation, Application, and Cure
Clean the adherends, mix the adhesive and activator at the documented 1:1 ratio, apply the mixed material to one surface, and complete part positioning before the 6-minute assembly time expires. Limit thick adhesive masses to control exotherm during the rapid room-temperature cure.
Insert an approved technical image showing surface preparation, controlled adhesive application, or timely mating of a supported dissimilar-substrate joint.
Store Devcon Plastic Welder in its original container in a cool, dry place. The supplied technical data sheet states a shelf life of one year or more at 22°C and notes that refrigeration may extend shelf life. Keep the flammable components away from heat, sparks, and open flames, and consult the current Safety Data Sheet for complete handling, exposure-control, first-aid, storage, and disposal requirements.
Cured Adhesive Properties
Typical cured adhesive and bonded-joint data. Bond strength is specific to the listed substrate, preparation, and test configuration and should not be treated as a universal design allowable.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Tensile shear - grit-blasted steel | 20.6 | MPa | ASTM D1002 |
| Tensile shear - polycarbonate alloy | 9.6 | MPa | ASTM D1002; stock failure |
| Tensile shear - ABS | 8.9 | MPa | ASTM D1002; stock failure |
| Peel strength | 6 | kg/cm | ASTM D1876 |
| Impact resistance - grit-blasted steel | 1.2 | kg/m/cm | ASTM D950-611; unit reproduced as stated in the source |
| Hardness | 78 | Shore D | Typical cured material |
| Minimum elongation | 75 | % | Typical cured material |
| Operating temperature | -20 to 120 | °C | Supplier also notes intermittent paint-bake exposure above 120°C; duration is not stated |
Applications
Evaluate the product within the documented substrate list, preparation requirements, 3 mm processing gap limit, cure timing, and operating environment. Copper, brass, and aluminum are not recommended.
Technical Support
Work with Krayden to evaluate Devcon Plastic Welder against your substrate pair, surface preparation, bond gap, joint geometry, fixture timing, service temperature, weather or solvent exposure, and production process. Our team can help review application trials, dispensing needs, packaging, compatibility boundaries, and implementation requirements.





















