3M Scotch-Weld DP8005 vs DP8010: What’s The Difference?

Both make excellent structural bonds on plastics and metals. But based on my tests, here’s how I’d rank them: 1st Place: DP8005 for its faster cure and higher heat resistance; 2nd Place: DP8010 for its longer work life and higher tensile strength

3M Scotch-Weld DP8005 vs DP8010

3M Scotch-Weld DP8005 vs DP8010: Specs & Uses

⏰Full Cure Time

DP8005: 8-24 hrs

DP8010: 24 hrs

🆚Cured Color

DP8005: Yellow, Black

DP8010: Blue-Green

🛠️Common Uses

DP8005 can be used to bond Polyethylene to ABS; repair polyethylene hot tub leaks; and bond RAM X plastic to aluminum frames, with consideration for the surface condition (bare, anodized, or powder-coated); bond ABS and various blends of rigid PVC, including Schedule 40 and 80.

DP8010 can be used to fix cracks on polyethylene kayaks; bonding HDPE to HDPE; Polycarbonate Bonding.

Technical Info

Datasheet📥3M Scotch-Weld Structural Plastic Adhesive DP8005📥3M Scotch-Weld Structural Plastic Adhesive DP8010
Base ColorOff-White, BlackOff-White
Base Viscosity17,000-30,000 cP27,000 cP
Accelerator Viscosity35,000-55,000 cP17,000-40,000 cP
Shore D Hardness55-6057
Overlap Shear on HDPE400-1,100 psi360 psi
Overlap Shear on PP1,075-1,150 psi1,100 psi
Overlap Shear on Stainless Steel1,100-2,300 psi1,820 psi
Temperature ResistanceUp to 180°FUp to 150°F
Work Life2.5-3 min8 min
Set Time2-3 hrs60 min

My Hands-on Test: DP8005

As someone who has dealt with various adhesives and encountered the challenges of bonding “Starboard” type plastics (HDPE), I can confidently say that DP8005 is the ultimate solution.

✅Pros: DP8005

I also used it to glue automotive interior plastic (polypropylene) to itself, and the bond was rock solid. In comparison, when I used JB Weld for plastic on the other side (does jb weld work on plasticDevcon vs. JB Weld), it adhered for only about five days before popping off cleanly. The residual JB Weld peeled off easily, proving its lack of adhesion. The 3M DP8005, on the other hand, surpassed my expectations with its strength and durability.

Bond a large HDPE sheet

One particular use case where DP8005 proved its worth was when I needed to bond a large HDPE sheet to a frame for an outdoor grill prep station.

My Hands-on Test: DP8005

That was a whopping two years ago, and I’m thrilled to report that it’s still holding strong. I had tried various adhesives before stumbling upon this gem, but nothing seemed to work until I discovered this adhesive. It was the only thing that could tackle the job.

Surface-weld Low-energy Plastics

Another noteworthy aspect of this adhesive is its exceptional ability to surface-weld low-energy plastics, such as gas cans and other highly resistant materials. However, it’s crucial to exercise caution during the curing process. If excessive adhesive is applied, it can curdle up.

3M Scotch-Weld DP8005
DP8005 is an industrial level applicator and mixing nozzles for Scotch Weld, which structurally bonds on Polyolefins, without surface preparation.

Fix the Delamination on the Kayak Bottom

Another impressive feat of this adhesive is its ability to fix the delamination on the bottom of my kayak. Due to some misuse, the hull had started to delaminate, and finding a suitable solution was challenging. However, this adhesive came to the rescue, and now my kayak is as good as new. I couldn’t be happier with the outcome.

❌Cons: DP8005

Now, I must mention that using this adhesive requires some additional tools. You’ll need a 10:1 epoxy gun and mixing applicators, which can be a bit costly. However, considering the outstanding results I’ve experienced, it’s a worthwhile investment. You can easily find the required tools on Tape and Adhesives Specialists, a great resource for all your adhesive needs.

3M Scotch-Weld Structural Plastic Adhesive DP8005

FAQ: DP8005

Q: Is it possible to use DP8005 to fix a leak in a polyethylene hot tub?

A: Hi there! There is a small chance that it could work. It’s crucial to have the correct equipment for the DP8005, as it requires a 10:1 ratio mix. Additionally, please note that while the adhesive is resistant to chemicals and heat once cured, its primary purpose is to bond two overlapping substrates in industrial applications, rather than filling cracks or holes. The working time for this adhesive is approximately 5 minutes after mixing, and it starts to set up or gel sooner on warmer days, giving you less time. Thank you for your inquiry.

Q: Can the 3M Scotch-Weld Structural Plastic Adhesive DP8005 bond RAM X plastic to an aluminum frame?

A: Is the aluminum frame bare, anodized, or powder coat painted? Please note that powder-coated paint surfaces tend to be more challenging to bond and may require sanding and/or primer. However, if the aluminum is bare, anodized, or has standard paint, there shouldn’t be any issues. In most bonding situations, it should work (without examining the specific application). The adhesive is designed for overlapping bonds rather than edge-to-edge bonding. Simply follow the instructions on the label and always use the appropriate dispensing equipment, such as the 10:1 mixing nozzle, plunger, and applicator, for optimal results.

Q: Can DP8005 repair my plastic motorcycle gas tank and prevent fuel leakage?

A: There is a possibility, but for that particular application, I would recommend using West System G/Flex EpoxyGFlex from West Systems (G/Flex Vs JB Weld).

Q: Will the 50ml dispensers be suitable for this 45ml product? Have there been any instances where dispensers were incompatible with the product?

A: In short, yes. The gray plastic EPX 3M applicator can dispense both the 45ml and 50ml sizes (the plungers are interchangeable). However, it is crucial to ensure that your 3M dispenser setup includes the current 10:1-45ml plunger, which comes as standard with gray EPX applicators manufactured in fall 2018 or later. The other plunger that comes as standard is designed for 48 or 50ml cartridges with a ratio of 1:1 or 2:1.

Q: Can this adhesive bond to ABS or Schedule 80 plastics?

A: ABS, definitely. For many years, 3M has recommended using either DP8005 or DP8010 to achieve structural bonding with rigid PVC, with shear strength of 1000 PSI or higher. These adhesives are meant to bond “all” blends of rigid PVC, including Schedule 40 and 80.

Q: Will DP8005 create a watertight seal between a cap and a corrugated plastic pipe? Both the pipe and cap are made of HDPE.

A: I’m confident that it would. I have successfully bonded two pieces of HDPE together on the transom of boats.

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My Hands-on Test: DP8010

3M Scotch-Weld Structural Plastic Adhesive DP8010
I purchased DP8010 to minimize the difficulty of installing some hidden fasteners on my vehicle’s bumper. The bumper and fasteners are made from polypropylene, which is notoriously difficult to bond. Let me tell you, this stuff really does the trick!

✅Pros: DP8010

The bond it creates feels like it’s part of the original surface, giving me a lot of confidence that it will outlast the original material. It’s definitely worth the price to avoid the inevitable headaches that come with the “I hope it works” approach.

3M Scotch-Weld DP8005  in a caulk gun
3M Scotch-Weld DP8005 in a caulk gun

Repair a Polyethylene Water Tank

I also used DP8010 to repair a polyethylene water tank on my boat, and let me tell you, the bond it creates is fantastic! It’s super strong and has held up well. In fact, I’ve even used it for other gluing applications, and it has performed admirably. Yes, it’s not cheap, and you do need a new applicator tip with each use, but as they say, you get what you pay for.

Stick Some Tefzel Plastic Brackets

Now, let’s talk about a unique challenge I faced with DP8010. I wanted to stick some Tefzel plastic brackets to the side of a gearbox that runs at around 115 degrees Celsius. Tefzel is the chemical name for Teflon, so you can imagine the difficulty in sticking Teflon to something that has a surface temperature hotter than boiling water. But guess what? DP8010 came through! It held the brackets securely, and I could even hang 10lbs off them without any issues.

HDPE Surface

To use DP8010, I cleaned the HDPE surface with isopropyl alcohol and let it dry. I hastened the curing process a little with a heater and then let it sit for 48 hours before pressurizing. The ambient temperature during the curing process was about 42 degrees Fahrenheit. Once it was cured, the adhesive became as hard as tire rubber.

❌Cons: DP8010

There are a couple of drawbacks. It takes about 4-6 minutes to set, even when the surface is already at 115 degrees Celsius. So, for vertical surfaces, you need to mechanically hold it in place while it sets. The other drawback is the cost. Holy mackerel, this stuff is expensive! But for a one-off application like mine, it made sense to invest in it.

3M Scotch-Weld Structural Plastic Adhesive DP8010

FAQ: DP8010

Q: Can I use DP8010 on a polyethylene Kayak with a 6-inch crack on the top?

A: DP8010 will effectively repair the crack on your polyethylene Kayak. To ensure a strong bond, I recommend placing a patch of rigid plastic behind the crack before applying the epoxy. Avoid using a flexible material as it may cause issues. Once cured, the epoxy might leave a rough residue that can be sanded down.

Q: Is DP8010 suitable for bonding aluminum to HDPE for underwater applications? If not, which product would you suggest?

A: While I cannot provide a direct answer to your question, I have used DP8010 successfully for bonding HDPE to HDPE. To be sure, I suggest mixing a small amount of the adhesive and conducting a test bond. Prior to bonding, make sure to thoroughly degrease both materials and roughen their surfaces using coarse sandpaper.

Q: Does DP8010 offer waterproof properties? Is it flexible?

A: Once the epoxy undergoes a lengthy curing process, it becomes waterproof and exhibits some degree of flexibility.

Q: What is the cost of this product? Is it priced at $89 per cartridge, or since the minimum order is 12 cartridges, is it $89 per case?

A: The description in the listing is inaccurate. The cost is $89.00 per cartridge, and the minimum order quantity is 1 cartridge. You are not obligated to purchase 12 cartridges.