3M Scotch 4298 Adhesion Promoter [Sponge Applicator Packet]
NOTE: Federal regulations prohibit the shipment of restricted products (aerosol cans, flammable items, etc.) by air so please only choose UPS Ground/Standard as your shipping method if including this product in your order.
4298 Standard sizes
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2.5cc sponge applicator
Single Packet (1-49 Packets)
1 - 4 Cases (50-249 Packets)
5 - 9 Cases (250-499 Packets)
10+ Cases (>= 500 Packets)
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.
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.
* Multiple cases may be shipped per package in order to minimize the charge for shipping.
3M Scotch 4298 Adhesion Promoter
- Drying Time: 30 to 90 seconds
- Flashpoint:: -20°C (-4°F)
- Coverage: Approximately 150 square inch per packet
- Composition: Cyclohexane, Xylene, Ethylbenzene, Ethyl Alcohol, etc.
Note: Specifications are those given by manufacturers and are not tested for accuracy.
hot melt rubber (synthetic)
Offers the widest range of application flexibility available. Exhibits excellent processing performance whether manually or automatically applied. Has superior tensile strength, adhesion properties and holding force which ensures consistent, reliable seals. Hot melt adhesive will bond faster to a surface which is referred to as quick-grab or quick-stick. It typically has higher tack (will feel stickier to the touch), but is also softer. It has lower heat resistance, shear resistance, and sometimes UV resistance than an acrylic adhesive. NOTE: it is called hot melt because the adhesive is applied hot by the manufacturer and then hardens as it cools (you do not need to apply heat to the tape yourself).
Properties are similar to that of hot melt rubber, but natural rubber often holds where other adhesives won't (recycled fibers, dust, cold, heat and heavy loads). It provides good overall adhesion and moisture resistance.
Offer excellent performance, especially for applications in temperatures less than 40°F and greater then 120°F. It provides excellent clarity, has high shear strength, is usually more permanent/durable even when exposed to moisture, and it ages well over extended periods in fluorescent and sunlight. Since it remains clear for the life of the application and does not yellow over time it is ideal for applications such as sealing white cartons. While it has good initial adhesion it does take 24-48 hours to cure and to achieve its maximum bond strength (has gradual adhesion buildup). Another difference between hot melt rubber and acrylic adhesive is if you fold tape over making the two adhesive sides touch the acrylic adhesive will remain attached to the carrier (e.g. paper, film) while a hot melt adhesive will stick to itself and pull off of the carrier. It is the best choice for clarity, UV resistance and aging characteristics.
Is great for extreme temperature applications since silicone adhesive can work in continuous operating temperatures from -100°F to 500°F. They also exhibit good chemical resistance, retain electrical properties, and remove cleanly with little or no residue.
Zinc oxide based adhesive formula is a skin-friendly adhesive which is commonly used on sports medicine tapes.
Thickness, AKA caliper or gauge, refers to the distance from one surface of a tape backing, or adhesive, to the other.
1 mil = 1/1000 of an inch
Examples: 1/16 inch = 62.5 mils; 1/32 inch = 31.25 mils