PUR Adhesive - hopsonglue

Hopson Chemical Industry

PUR adhesive, also known as polyurethane reactive adhesive or polyurethane hot melt adhesive is a one-component, 100% solid content, isocyanate (NCO) capped adhesive. When PUR adhesive glue contacts the moisture in the air, the polyurethane prepolymer reacts with the moisture in the air to cure and crosslink forming a strong bond.

PUR adhesive glues provide versatile solutions across numerous industries. They are particularly well-suited for bonding wood and certain plastics. Additionally, PUR adhesives excel in assembling plastic, glass, and metal materials, making them ideal for applications in the automotive, electronics, and general assembly sectors, etc.

PUR glue, also known as “PUR foam glue,” is demonstrated in the video. It showcases the foaming process of the PUR adhesive and includes a test of the bonding effect after the adhesive has initially cured on bonded wood.

As a prominent adhesive manufacturer in China, Hopson® offers a range of PUR adhesive products, including 250ml/500ml bottled PUR adhesive glue, 150g aluminum-plastic tube PUR glue, and bulk PUR adhesive, catering to diverse industrial needs.

Contact our adhesives experts today for more information on the best polyurethane glue for your special application.

Adhesive Type	Urethane Adhesive
Application Method	Manual extrusion or extruded from hand held or bench mounted applicators
Application Temperature From (Celsius)	-55 ℃
Application Temperature To (Celsius)	80℃
Brands	Hopson® or OEM Brand
Container Size	150g, 250ml, 500ml, Bulk
Design Challenges	Impact & Shock Absorption
Full Cure Time	24 hr
Indoor/Outdoor	Both
Industries	Woodworking, Automotive, Construction, Consumer Goods, Electronics, Furniture, General Industrial, Metalworking, Military & Government, Retail, Signage, Specialty Vehicle, Transportation
Physical Form	Liquid
Product Color	Yellolw
Smallest Saleable Unit	Aluminum-plastic pipe or bottle
Solids Weight Percent (Approximate)	1
Storage Temperature (Celsius)	16 to 27 °C
Storage Temperature (Fahrenheit)	60 to 80 Degree Fahrenheit
Packing	250ml, 24bottles/ctn 500ml, 12bottles/ctn
Viscosity	Self-leveling
Work Time	1 min

Single-component.
Quick initial curing, can reach initial curing after 10 to 20 minutes after gluing.
Has gap-filling properties.
No pot life problems.
High-strength bond.
Easy to use and apply.
Low VOC, Green produc
Good high and low-temperature resistance.
Excellent weather resistance, sealing, corrosion resistance, aging resistance, creep resistance, and temperature shock resistance.

Recommended Applications

Wood or plastic for furniture and cabinetry.
Edge moldings and trim for countertops, tables, shelving, and desks.
Wood or MDF drawer bottoms, backs, and facings.
Thin bond line applications in woodworking.

Applications in WoodWorking

Strongly Bonds wood to wood.
Used for Windows and door frame assembly
Staircase assembly.
Laminate bonding of wood and wood materials.
Joint bonding for outdoor use. Eg: Edge-to-edge joints, I-beam joints.
Suitable for bonding tropical wood, and sandwich panels.
Takes to wood stains easily.
Other applications in Plywood, mineral building boards, rigid plastics, foams, concrete, and ceramics.
More other uses(Construction, Furniture, Laminating, shipbuilding, Cladding, etc. )

Flexible even after bonding – allows for movement in wood joinery.

Other Areas of Application

Metal Foam Fiberglass.
Plasterboard, masonry.
Fiberboard, particleboard.
Stone, ceramic, brick, marble.
Rubber, some plastics, and many other substrates.

The surface to be bonded should be dry, clean, and free from oil or grease.
By Brush/Roller/Spatula – Apply to one surface in a thin layer, assemble the parts and leave to set, it will set in 30 minutes.
During cure, this product will expand to fill gaps and rough surfaces, when foamed.
Firmly clamp both substrates. A strong bond will be obtained after 2 – 3 hours and full strength will be realized after 24 hours at room temperature.
Individual substrates should be evaluated for bonding performance prior to any large-scale application.
Clean up – Mineral spirit or acetone when the glue is wet, and sand & scrape when the glue is dry.

Note

The container is to be closed tightly after use as the product is moisture-curable. The use of Protective Hand gloves & goggles is strongly recommended to avoid skin contact.

Store PUR adhesives in a dry, cool place. Avoid sunlight exposure, and prohibit contact with steam, water, and alcohol solvents.

Recommended storage temperature: 5-25 degrees Celsius, shelf life is 12 months.