Call Now for a Free Consultation: 1-800-249-0337

PUR Hot Melt Adhesive

Home PUR Hot Melt Adhesive

Cattie Adhesives – PUR Reactive Hot Melt


Automotive Interior and Component Assembly | General Assembly Filter Assembly | Flooring | Rigid Panel Bonding Textile Bonding | Window and Door Assembly | Wood Bonding

What is PUR Hot Melt Adhesive ?

PUR Hot Melt Adhesive (Polyurethane) is a reactive moisture curing adhesive known for –  Strong Bonds and  Exceptional Heat, Cold and Moisture-Resistance;  this makes them an excellent choice for most difficult to bond, low energy substrates and they perform very well in extreme weather environments.

Our PUR Reactive Hot Melt Adhesives can be Custom Formulated to have a  Very High Initial Tack and Green Strength.

After PUR Hot Melt adhesive has been applied to a substrate it will start to cross-link and form a final bond. Depending on air humidity % and substrate moisture conditions; PUR Hot Melt develops 50-80 % of its final bond strength within  3 – 6 hours.  The full reactive cure time is normally 24 to 36 hours after application.

PUR Hot has a  Wide Temperature performance range  – From:   -40°F  to  + 300°F. 

Cattie Adhesives manufactures a full line of PUR Reactive Hot Melt Adhesives for Industrial applications.  We have the knowledge and experience to help you design and scale-up your PUR hot melt adhesive production and help to improve your production speed, accuracy, efficiency and consistency.

Our PUR Hot Melt Adhesives are designed to form very strong permanent bonds to most materials including:

  • Solid Woods, Veneer
  • MDF/Particle Board
  • Metals
  • Papers
  • Glass
  • Fiber Glass, Foams
  • Plastics, Rubber
  • PVC, Foils

Our PUR Hot Melt Adhesives can be  Custom Formulated  for Strong, Fast setting-Permanent bonding applications; or Slower setting applications.  We have the ability to produce pigmented reactive hot melt adhesives, pre-polymers, and other custom products.

Our PUR Hot Melt Adhesives can be used with most Hot Melt Applicator Systems and are made to bond to most difficult substrates including – fiberglass, nylon, plastics, rubber, foam and coated papers.

PUR Hot Melt adhesives are applied molten like a conventional hot melt, but then cure by reaction with atmospheric moisture to form a cross-linked thermoset system.

PUR Hot Melts are fast drying  and most bonded parts have the Green Strength to be handled after a few minutes.

PUR Hot Melt adhesives are widely used for the bonding of Large Panels, such as  SIP Panels, Door manufacturing, Garage door Construction and the walls of Recreational vehicles.

PUR Hot Melt is commonly used for Laminating Foil to sheet metal for the production of Cans and Bottle Caps.

For bonding large areas; Spraying or Roll Coating are often the best application methods for PUR Hot Melt.

PUR Hot Melt does Not bond well to Untreated PolyEthylene (PE) or PolyPropylene (PP).

It is suggested that PE and PP are Corona treated, to improve the bond strength to these substrates.

Are you considering a PUR Hot Melt vs. Solvent based adhesives?

Polyurethane Hot Melt Adhesives (PUR) should be seriously considered when switching away from a Solvent-based adhesive system.  PUR Hot Melt adhesives have many advantages over solvent-based adhesives.

The primary advantages of using PUR Hot Melt include:

  1. The reduced cost of the adhesives, on a /lb. basis.55gal_steel_drum
  2. The removal of HAPs and VOCs; PUR is 100% solids.
  3. The very fast set up time with PUR.
  4. The elimination of a plant explosion risk; lower insurance costs.
  5. No more need for air pollution control devices.
  6. The removal of dryers in the production line.

Some considerations on PUR Hot Melt vs. Solvent-based adhesive:

  1. The initial expense of new equipment to apply the PUR Hot Melt.
  2. The higher temperatures required for application, up to 300F.
  3. The shorter shelf life of the PUR Hot Melt.
  4. The special handling and fast clean up requirements with PUR.
  5. PUR is more prone to crosslinking and has lower resistance to solvents.

Our PUR Hot Melts are available in many forms, to meet a wide range of PUR hot melt applicator systems.

  • Cartridges
  • Foil Slugs
  • Pails
  • Drums

Our PUR hot melts are commonly used in the following Applications:

  • Profile Wrapping
  • Bookbinding
  • Cabinet Assembly
  • Difficult to Bond-PET,PE,BOPP,UV
  • Foam & Mattress Fabricating
  • Furniture & Cabinet Assembly
  • R. V. and Panels
  • Woodworking and Picture Frames
  • General Product Assembly
  • Heavy Veneer, PVC and Metals

Below are some of our most common PUR Hot Melts.

Product #DescriptionSDS/TDS
8600PUR hot melt, Fast Initial Tack, Fast Setting, Strong Bonds to Most Substrates including: Cabinets, Steel, Woods, EPS, Cores. Application Temperature 250F, 4,000cps at 250F. 10 hr CURE Time, RUN Temperature Range 235F - 275F. OPEN TIME 4 MINUTES. Applied by Extrusion, Roll Coater.Request >>
8463PUR hot melt, Very Fast Initial Tack, Fast Setting, Strong Bonds to Most Substrates, Application Temperature 250F, 9,000cps at 250F. HIGH GREEN STRENGTH. RV PANELS 9000CPS 8 HR CURE Time, RUN Temperature 250F. RV CONSTRUCTION. OPEN TIME 3-4 MINUTES.Request >>
8730PUR one-component Cold Liquid moisture-cured polyurethane adhesive; our version of “Gorilla Glue”. A general purpose adhesive for gluing materials such as carpet, wood, foam, metal and most plastics to each other. Not recommended for vinyl (PVC), polypropylene, polyethylene and polyolefins. Provides a permanent, rigid final bond. Application Temperature 74F, 7,000cps at 74F.Request >>
PUR-Purge-1000PUR hot melt -Cleaning Compound. Designed for purging polyurethane reactive hot melt adhesives from hot melt application equipment to prevent the cured hot melt from clogging machines and tips. Reduces downtime and increases productivity. Application Temperature 250F -350F, 7,000cps at 350F.Request >>
8493PUR hot melt, Fast Initial Tack, Long Open Time 45 Min+, Strong Bonds to Most Substrates, Application Temperature 250F, 9,000cps at 250F. 2-4 HOUR CURE TIME, GoodFor EPS foam, FlexIble bonds to steel, woods, foams.Request >>

Liquid PUR  – Moisture-cured  – Polyurethane adhesive.

Our version of  Industrial Strength –  “Gorilla Glue”.

Our  Liquid PUR  adhesives form permanent bonds by a chemical reaction with moisture from the substrate or environment.

These Cold”  Liquid PUR adhesives are liquid at room temperature and Not Tacky when 1st applied;  so bonded parts must be pressed together and held or clamped during the initial curing process.

Liquid PUR adhesives form structural bonds to most difficult to bond substrates, and are especially good for gluing materials such as carpet, wood, foam, metal and most plastics to each other. It is not recommended for vinyl (PVC), polypropylene, polyethylene and polyolefins.

Liquid PUR produces extremely durable, highly elastic bonds that perform well in both high and low temperature extremes.

We also supply 2-part Polyurethanes and Epoxy Adhesives.

PUR Hot Melt: A Durable and Versatile Adhesive Solution

Polyurethane Reactive (PUR) hot melt adhesives are a popular choice for many industrial applications due to their strength, versatility, and durability. PUR hot melts are ideal for use in a variety of bonding applications, including assembly, laminating, and packaging.

PUR hot melts are made up of a reactive adhesive material that hardens when it comes into contact with moisture, creating a strong, long-lasting bond. This makes them an ideal solution for bonding a wide range of materials, including wood, plastic, metal, and foam.

One of the most significant advantages of PUR hot melts is their ability to withstand harsh environmental conditions. They are resistant to heat, cold, moisture, and chemicals, making them ideal for use in demanding industrial applications. They also offer excellent adhesion properties, making them suitable for bonding challenging materials.

In addition to their durability, PUR hot melts offer a range of other benefits. They have a low odor and emit low levels of volatile organic compounds (VOCs), making them a safer choice for use in manufacturing facilities. They also have a longer shelf life than many other types of adhesives, which means they can be stored for longer periods without losing their effectiveness.

PUR hot melts are available in a variety of forms, including pellets, cartridges, and sticks. They can be applied using a range of equipment, including hot melt guns, rollers, and spray systems, making them a versatile adhesive solution for many different industrial applications.

Some common applications for PUR hot melts include:

  • Automotive manufacturing: Used for bonding interior trim and upholstery materials.
  • Construction: Used for bonding insulation, roofing materials, and other construction components.
  • Furniture manufacturing: Used for laminating wood, fabric, and other materials.
  • Packaging: Used for bonding corrugated boxes, laminating film, and other packaging materials.

In conclusion, PUR hot melt adhesives are a durable and versatile solution for a wide range of industrial bonding applications. Their strength, resistance to environmental conditions, and excellent adhesion properties make them a popular choice for use in automotive manufacturing, construction, furniture manufacturing, and packaging.

To speak with a technical representative about your application, and to request samples, please call us at 1-800-249-0337 or email us at [email protected]

Call us 1-800-249-0337 or send us a message to get a call back