Reactive Adhesive Systems – Solutions by Industry
Why Reactive Hot Melt?
The benefits of hot melt PURs can make a huge difference in your operations.
Benefits of reactive adhesive systems:
- NStand up better to high and low temperatures.
- NIncrease production rate while reducing scrap rate.
- NDecrease overall cost of production by making parts “better, faster and less expensive.”
- NIncrease quality control because any defects are immediately visible and can be corrected.
- NOffer outstanding performance with the only truly structural bond in hot melt adhesive technology.
- NReduce the number of employees required for production as well as the amount of movement those employees have to make.
- NEliminate warping, a complication in particular with wood flooring and water-based adhesives when pressed with high temperature equipment.
- NVirtually eliminate drying times over traditional water-based adhesives, which involve expensive drying ovens and a large footprint for machinery on the plant floor.
- NBond to a wide variety of substrates, no matter how difficult to bond, including plastics to metal to wood to cloth, even low temperature-susceptible materials.
- NGive manufacturers the ability to employ Lean Manufacturing principles, because of the small plant footprint required. You can melt and apply the adhesive, lay up the part, press and trim the finished product in continuous motion.
Advantages of ITW Dynatec’s Non-Contact Application Methods
Contact vs. Noncontact Adhesive Application
| Contact | Non-Contact |
|---|---|
| Cost effective only up to a certain width | ITW Dynatec UFD and Delta non-contact applicators can be configured in the exact width you need with no limitations |
| Delivers a limited range of coat weights and uses more adhesive | ITW Dynatec UFD and Delta non-contact applicators can deliver extremely low coat weights, saving adhesive |
| Can create adhesive waste due to changes in viscosity under temperature | ITW Dynatec UFD and Delta non-contact applicators prevent adhesive from coming into contact with the environment until the moment of application, meaning no early cure and no waste. Its applied only where and when you need it. |
| Requires intense end-of-shift or even after extended breaks in production, cleanup procedures; with additional waste of adhesive. | No flushing involved. Just turn off ITW Dynatec UFD and Delta non-contact applicators and go home. |
| Cannot offer a perfectly smooth adhesive application across a wide substrate (deflection) | ITW Dynatec UFD and Delta non-contact applicators deliver high-precision, even application at greatly reduced coat weights |
| Doesn’t perform well on raised or three dimensional profiles | ITW Dynatec UFD and Delta non-contact applicators apply the perfect amount of adhesives where you need it in the exact way you need it |
| Grabs rough, picky pieces from substrates like wood, creating the need to stop production to clean off the roll | Non-contact means never having a roller to clean |
| Thin or delicate substrates, can wrap themselves on the applicator roll and destroy the substrate | ITW Dynatec UFD and Delta non-contact applicators never touch substrate, so they never cause damage and work effectively on any kind of substrate |
| Over time, hot adhesive will cause the rolls to wear down, creating the need to stop production and send out roller for repair or replacement | No wear items means longer life for all parts with minimal replacement cost |
Product Assembly Adhesive Equipment Solutions
Below is a list of hot melt adhesive equipment commonly used to apply adhesive during product assembly:
UFD™ Equity Applicator
Lamiated Plate Technology with Uniform Fiber Deposition – some companies say that they innovate, but only ITW Dynatec has the patents to prove it.
UFD™ Fiberized Applicator
Lamiated Plate Technology with Uniform Fiber Deposition – some companies say that they innovate, but only ITW Dynatec has the patents to prove it.
DeltaFx™ Applicator
DeltaFx™ fiberized spray applicators provide exceptional value and flexibility for wide adhesive lamination.
CrossCoat™ Slot Applicator
The CrossCoat™ is a non-contact, metered slot applicator that produces a precise flow of adhesive for coating applications that require streak-free results.
Dynamelt™ PUR Bag Melter
The Dynamelt PUR Series bag melter is designed to meet the unique needs for the melting and delivery of PUR hot melt adhesives.
DM55 DynaDrum™
The DM55 DynaDrum™ Bulk Adhesive Melter provides uninterrupted flow of hot melt adhesive for high volume production demands.