3M™ Scotch-Weld™ DP6310NS
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
- 1:1 mix ratio by volume
- Non-sag rheology
- 9-minute work life
Product Description
3M™ Scotch-Weld™ Multi-Material & Composite Urethane Adhesive DP6310NS is a multi-purpose urethane adhesive for bonding a variety of composites, plastics, metals and wood. It combines a 1:1 mix ratio by volume, a solvent-free adhesive system, and a 10-minute open time, while curing to full strength in 24 hours at 73°F (23°C). Its non-sag paste formulation, high-strength structural bond profile with some flexibility, and excellent water, humidity, and chemical resistance make it suitable for replacing rivets and screws in attaching composites to other substrates.
Product Key Features
- Equal-Mix Processing - uses a 1:1 mix ratio by volume (1:1.09 by weight) to simplify dispensing.
- Open Time and Handling - offers a 9-minute worklife, a 10-minute open time, and reaches handling strength in 45 minutes.
- Non-Sag Rheology - resists running and slumping of adhesive, operating as a non-sag paste for accurate application.
- Structural Bond Profile - delivers a Shore D hardness of 77, stress at break of 18.5 MPa, and 54% elongation at break.
- Environmental Resistance - cured adhesive provides excellent water and humidity resistance, as well as very good chemical resistance.
Applications
This adhesive fits composite and mixed-material assemblies that require structural bonding, flexibility to accommodate thermal expansion, and primerless adhesion to many substrates.
- Composite and Plastic Bonding: Bonds a variety of composites and plastics, serving as an alternative to rivets and screws to provide an aesthetically-pleasing, fatigue-resistant bond line.
- Metal Assemblies: Bonds well to most metals without requiring priming.
- Dissimilar Material Bonding: Provides a high-strength bond with some flexibility to accommodate thermal expansion and contraction differences when bonding dissimilar materials.
3M-DP6310NS
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TDS, SDS & Technical Documents
- 3M-DP6310NS
- 3M-DP6310NS
- 3M - DP6310NS - TDS
- DP6310NS and DP6330NS TDS
Technical Specifications
General Properties
Physical Properties
Thermal Properties
Mechanical Properties
Additional Information
3M™ Scotch-Weld™ DP6310NS
3M™ Scotch-Weld™ Multi-Material & Composite Urethane Adhesive DP6310NS is a multi-purpose, two-component urethane adhesive system engineered for high-strength structural bonding of a variety of composites, plastics, metals, and wood. As a high-strength bonder with deliberate flexibility, it easily accommodates differences in thermal expansion and contraction during dissimilar material bonding. DP6310NS serves as an ideal replacement for rivets and screws, providing an aesthetically pleasing, fatigue-resistant, and impact-resistant bond line. It also establishes excellent primerless adhesion to most bare metals.
Typical engineering data measured at standard conditions of 72°F (22°C) unless otherwise indicated.
Key Features
- Outstanding capability to bond most composites and highly challenging dissimilar substrates.
- Primerless-to-surface adhesion performance across most bare metal variants.
- Non-sag thixotropic paste rheology prevents running, slumping, or migration on vertical seams.
- Excellent resistance profiles against water and environmental humidity alongside very good chemical resistance.
- 100% solid, solvent-free adhesive framework supporting a cleaner factory workflow.
- Room temperature moisture cure mechanism that can be further accelerated through targeted heat.
Processing Summary
Process Notes
- Store under normal temperature conditions between 16° to 27°C (60° to 80°F).
- Keep material contained within its original product packaging out of direct sunlight.
- Maintain ambient relative humidity levels between 40% and 60% to realize the 12-month shelf life.
- Steel: Wipe with pure solvent (acetone/IPA), sandblast or abrade with clean fine grit mending mediums, and wipe clean. Apply an epoxy primer or 3M™ Adhesion Promoter 111 for best results.
- Aluminum: Clean dust and structural oils away with pure acetone or IPA, sandblast/abrade with fine abrasives, and wipe clean.
- Plastics/Rubbers/Coatings: Perform an initial wipe using isopropyl alcohol (IPA), abrade thoroughly with fine grit media, and wipe clean with IPA again.
- Glass: Clean the bond area with acetone or MEK, apply a thin uniform coating of a silane adhesion promoter, and let dry completely.
- Duo-Pak Cartridges: Store with the cap end up to let micro air bubbles escape toward the tip. Place into the EPX applicator, balance the plungers by expelling a fraction of material, attach the mixing nozzle, and dispense.
- Hand Mixing: Expel the targeted amount of Part B and Part A, blend thoroughly, and continue mixing for 15 seconds after achieving a single uniform color streak.
- Bulk Configurations: Combine material precisely by weight or volume to match label criteria, and agitate for 15 seconds past the point of visual color uniformity.
- Mate and close all part assemblies within the explicit open time. Large scale volumes or high floor temperatures will shorten working time.
- Ensure parts remain completely undisturbed during early curing stages; employ light contact pressure or custom fixtures.
- Allow adhesive to cure at 60°F (16°C) or above until completely firm. Cure processing speeds up significantly when heat up to 200°F (93°C) is introduced.
- Clean up any excess uncured material instantly using standard ketone-type solvent lines.
Engineering Data for 3M™ DP6310NS
Uncured Physical Properties (at 22°C / 72°F)
| Property | Base (B) | Accelerator (A) | Condition / Test Method |
|---|---|---|---|
| Color | Green | Off-White | Visual inspection |
| Density | 1.2 - 1.32 g/cm³ (10 — 11 lb/gal) |
1.26 - 1.38 g/cm³ (10.5 — 11.5 lb/gal) |
- |
| Viscosity | 11,000 - 35,000 cP | 9,000 - 25,000 cP | Brookfield RTV, spindle #7, 20 RPM at 27°C (80°F) |
| Mixed Viscosity Profile | Non-sag paste | - | |
Typical Cured Characteristics (at 23°C / 73°F)
| Attribute Name | Typical Value | Test Method Details |
|---|---|---|
| Young's Modulus | 543 MPa | DIN EN ISO 527-2 (Sample type 1B, Rate: 1%/minute) |
| Stress at Break | 18.5 MPa | DIN EN ISO 527-2 (Sample type 1B, Rate: 1%/minute) |
| Elongation at Break | 54% | DIN EN ISO 527-2 (Sample type 1B, Rate: 1%/minute) |
| Shore D Hardness | 77 | ASTM D2240 |
| Glass Transition Temperature (Tg) | 41°C (106°F) | Measured at one week via DMA |
Overlap Shear Strength Performance
Tested at 23°C (73°F) after a 7-day dwell period. Evaluated under ASTM D1002, ISO 4587 standards using 5-8 mil bondlines.
| Substrate Matrix | Surface Prep Protocol | Overlap Shear Value | Failure Mode Result |
|---|---|---|---|
| Stainless Steel | MEK / Abrade / MEK | 21.5 MPa (3124 lb/in²) | Cohesive Failure (CF) |
| Aluminum | MEK / Abrade / MEK | 18.5 MPa (2680 lb/in²) | Cohesive Failure (CF) |
| Glass Filled Epoxy LW | IPA Wipe / Abrade / IPA Wipe | 16.5 MPa (2400 lb/in²) | Cohesive Failure (CF) |
| Cold Rolled Steel | MEK / Abrade / MEK | 15.7 MPa (2282 lb/in²) | Cohesive Failure (CF) |
| Galvanized Steel | MEK / Abrade / MEK | 8.3 MPa (1200 lb/in²) | Adhesive Failure (AF) |
| Glass Filled Polyester | IPA Wipe / Abrade / IPA Wipe | 6.9 MPa (1000 lb/in²) | Substrate Failure (SF) |
| Fiber-Reinforced Plastic (FRP) | IPA Wipe / Abrade / IPA Wipe | 6.2 MPa (900 lb/in²) | Substrate Failure (SF) |
| Polycarbonate (PC) | MEK / Abrade / MEK | 4.9 MPa (710 lb/in²) | Adhesive Failure (AF) |
| ABS | MEK / Abrade / MEK | 1.6 MPa (230 lb/in²) | Adhesive Failure (AF) |
- Cohesive Failure (CF): Structural breakdown within the internal adhesive layer body.
- Adhesive Failure (AF): Separation occurring cleanly at the exact contact plane between the adhesive film and substrate surface.
- Substrate Failure (SF): Material breakdown occurs within the bonded part substrate layers before the adhesive interface yields.
Peel Strength Performance
Tested at 23°C (73°F) after a 24-hour dwell period. 25 mm (1 in) wide samples; 0.4 mm (0.017 in) bond line thickness. The jaw separation rate during testing was 15 cm/min (6 in/min). The
bonds are made with 1.6 mm (0.064 in) bonded to 0.64 mm (0.025 in) thick adherends.
| Substrate Matrix | Peel Value | Test method |
|---|---|---|
| Etched Aluminum | 21.5 N/cm (28 lb/in²) | ASTM D3167 |
Where 3M™ DP6310NS Fits
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Panel-to-Frame Assembly
- Replaces traditional physical rivets and sheet screws.
- Eliminates localized mechanical fastening spot distortion.
- Delivers premium aesthetic, fatigue-resistant line joints.
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Composite-to-Composite Assembly
- Provides superior impact and micro-shock absorption.
- Maintains high elongation stress-strain resilience.
- Protects assemblies against harsh environmental degradation.
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- Certified to Freightliner Standard No. 49-00093 Rev C.
- Fully compliant with rigid PACCAR CMT0038 parameters.
- Extended 15-minute worklife accommodates large manual alignments.
See 3M™ Scotch-Weld™ EPX Application System in Use
Review the explicit operation of structural adhesive application utilizing 3M™ EPX™ Applicator static mixing nozzle systems. This visual guide walks through auto-plunger balancing, consistent ribbon bead tracking, and essential closing methods within the target open time limits.
Standard Packaging & Technical Help
- Duo-Pak Cartridges built for manual handheld dispensing gear.
- High-capacity bulk container configurations optimized for automated lines.
- Fully compatible with authentic 3M™ EPX™ static mixing nozzle arrays.
- Assists with target surface prep configurations for unique or complex substrates.
- Provides custom risk assessments evaluating specialized structural assembly plans.
- Advises on exact nozzle configurations, fluid pressure limits, and staging plans.
- Offers support for regulatory matching, including European EN 45545 fire test data.
Tips and Troubleshooting
| Issue | Recommended Action |
|---|---|
| Adhesive cures inside nozzle or forces excessive trigger resistance |
|
| Premature bond failure or reduced shear profile values |
|
| Accelerating slow cure cycles during high-throughput schedules |
|
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