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3M Scotch 4298 Adhesion Promoter: 2.5cc sponge applicator (Straw)
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3M Scotch 4298 Adhesion Promoter: 2.5cc sponge applicator (Straw)

Our Price: $6.41 & eligible for FREE Super Saver Shipping on orders over $35.
SKU:

FTVID6253

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Description:

3M 4298 Adhesion Promoter is a liquid primer used for most low surfaces energy plastics. This would include common low surface energy plastics used for automotive dash and interior trim applications (TPO, PPO, PP, PC, PC and ABS, etc.). It is specifically formulated to be used with 3M VHB Acrylic Foam Tapes. Since formulations and surface energies can vary for these types of materials, each application should be verified through testing. This adhesion promoter is supplied in an easy-to-use sponge applicator packet. Application Instructions: The liquid contents of the packet should be completely used as soon as possible after opening. Hold packet upright and avoid squeezing an opened packet to prevent spillage of liquid contents. The packet can be opened by tearing across the top of the packet at the notches. This will expose the sponge applicator. Do not remove the sponge or squeeze a freshly opened packet. Handling the bottom section of the packet should enable application of 3M adhesion promoter 4298 with no mess. Apply a thin, uniform coating to the bonding surface, using the minimum amount that will fully coat the surface. A wet coating thickness of 0.002 inch or less is recommended. Apply promoter only to areas that will be fully covered with tape. Although drying times may vary due to temperature and/or humidity, a drying time of 30 to 90 seconds is typically indicative of this thickness. The primer should be dry before applying tape. For best results, apply tape immediately after primer application or no more than one hour afterwards. Be sure the primed surface remains free from contaminants prior to tape application.

Features:

Drying Time: 30 to 90 seconds


Flashpoint:: -20°C (-4°F)


Coverage: Approximately 150 square inch per packet


Product Details:
Product Length: 3.0 inches
Product Width: 3.0 inches
Product Height: 0.13 inches
Product Weight: 0.5 pounds
Package Length: 0.2 inches
Package Width: 0.2 inches
Package Height: 0.2 inches
Package Weight: 0.5 pounds
Average Customer Rating: based on 39 reviews
Customer Reviews:
Average Customer Review: 4.5 ( 39 customer reviews )
Write an online review and share your thoughts with other customers.


Most Helpful Customer Reviews

5 of 5 found the following review helpful:

2Not as advertised and very clostly for what you get.Jul 17, 2013
By Kathy C.
The packet is the size of a hand cleaner from a restaurant. Very costly for what it is.
Perhaps I failed to understand the specifications from 3M.

2 of 2 found the following review helpful:

3The product works superbly, but I had to do a search on the internet to find the application instructions!Feb 22, 2015
By Mighty M. Mouse
I used this product to attach a cell phone mount with an unusually small footprint to the pebbled dashboard material of a 2000 Camry. The 4298 Technical Data Sheet states the product "is a liquid primer used for most low surface energy plastics . . . [which] would include common low surface energy plastics used for automotive dash and interior trim applications."

According to the Technical Data Sheet, expected coverage is approximately 150 square inches per sponge applicator packet, but this product also comes as a 4-pack, with four times the liquid for just twice the price, 3M + (4 pack) ADHESION PROMOTER - Part # 6396 Attachment Tape Liquid Primer, which may be a better value for applications requiring more than one packet.

Since I had a tiny area to do I cut a small hole in packet and applied a thin layer with a Q-tip. It worked superbly, the only problem being that there was no final "adjusting." Once the tape under the mount touched the dash there was no way I wanted to pull it off to just align it slightly better a second time.

If you look at Amazon's photo of the package it has an image of a thermometer showing a temperature range of 60-80 degrees fahrenheit, which I assume is the range in which the product is designed to work best, but I had to search the web to find the Technical Data Sheet in order to get the "Application Procedure," which should have come with the product!

"3M Adhesion Promoter 4298 is supplied in an easy-to-use sponge applicator packet. The liquid contents of the packet should be completely used as soon as possible after opening. Hold packet upright and avoid squeezing an opened packet to prevent spillage of liquid contents. The packet can be opened by tearing across the top of the packet at the notches. This will expose the sponge applicator. Do not remove the sponge or squeeze a freshly opened packet. Handling the bottom section of the packet should enable application of 3M adhesion promoter 4298 with no mess.

Apply a thin, uniform coating to the bonding surface, using the minimum amount that will fully coat the surface. A wet coating thickness of 0.002 inch or less is recommended. Apply promoter only to areas that will be fully covered with tape. Although drying times may vary due to temperature and/or humidity, a drying time of 30-90 seconds is typically indicative of this thickness. The primer should be dry before applying tape. For best results, apply tape immediately after primer application or no more than one hour after primer application. Be sure the primed surface remains free from contaminants prior to tape application."

I also used an Exacto knife to make a cardboard template in the shape of the footprint of the mount, only just a little smaller all the way around. I used it to avoid getting any Adhesion Promoter on the dashboard that wouldn't be hidden underneath, and totally covered by, the footprint of the mount.

One complaint about the phone mount I was trying to stick on the dashboard was in very hot weather the double sided 3M foam tape it came with would separate from the mount, leaving just the tape stuck to the dashboard and the mount, with cell phone attached, falling to the floor of the car. To prevent that from happening I scraped the original tape off of the mount using a single-edge razor blade, prepared the surface with coarse sandpaper, then spread a thin layer of Krazy glue with a flat toothpick all over the roughened surface in order to permanently replace the old tape with double-sided foam Scotch 414/DC Extreme Mounting Tape, 1 by 60-Inch, Black. I let the bond cure overnight and removed all the excess tape the next day using a scissors.

2 of 2 found the following review helpful:

5Works great, be aware of the sizeNov 12, 2014
By M L
Great thing to have if you are prepping for automotive body parts. I was replacing a side skirt on my car that had sagged, after I cleaned the area I wiped up and down the sills of the driver side with *2* of these (keep in mind the size!).

The 3M sticky tape I used held very well after letting it "cure" for 24 hours against pressure.

This promoter is not cheap and you have to get a lot of it for larger jobs, but it works very well and you will only have to do what you are doing once. Yeah, I could have skipped using this and just applied the adhesive after a good clean, but I would probably have to repair it again in a few years.

Now I won't.

2 of 2 found the following review helpful:

5worked for me.Jan 17, 2014
By Wade Zehr
Apply as directed and body side molding is still attached to my truck. Just as side note, I did use acetone and letting it dry before applying.

1 of 1 found the following review helpful:

4it was a pretty small applicator and the sponge fell apart after a ...Oct 18, 2014
By jeepmagic
it was a pretty small applicator and the sponge fell apart after a little use. It did work for the five foot x one inch trim area I was working with, but just barely. If I had to do both sides of the car, I would have needed more. Cost seemed high for what little I got. I can only assume it improved the quality of the adhesive bond, but how can I tell? The bond of the attaching tape did seem excellent. This was my first time using it. It's held on fine for one month.

See all 39 customer reviews on Amazon.com
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