Covestro Dispercoll® U54 waterborne polyurethane adhesive raw material

...

Type	Water-based polyurethane dispersion
Form of Supply	water-based Dispersion
Appearance	milky white

Features
Covestro Dispercoll U54 is a high molecular weight water-based anionic polyurethane dispersion, which is a raw material for heat-activated polyurethane adhesives and can be used in furniture, automobiles, shoemaking, construction and other industries. The solid content of Baike U54 is high. It exhibits excellent bonding properties to a variety of materials, including soft PVC.

Basic product performance

Features	Value	Measurement unit	Method
Solid content	50±1	%	DIN EN ISO 3251
Viscosity	40～600	mPa· s	DIN 53 018
PH	6.0～9.0		DIN ISO 976
Density	about1.07	g/ cm3	DIN 51 757
Minimum activation temperature	about 45～55	℃	Bayer Method
Minimum film forming temperature	about5	℃	DIN ISO 2115

Application
Dibaike U54 exhibits outstanding bonding properties to many synthetic materials and natural materials, adding 2-5% (weight ratio) of water-emulsifiable polyisocyanate curing agent- Desmodur D can improve the thermal stability of bonding, resistance to plasticizers, grease resistance and oil resistance. The curing agent should be added before the adhesive is used, and should be dispersed evenly. Pay attention to the working time of the mixed adhesive. In order to expand the technical performance of special application fields or customized products, resin dispersions, emulsifiers, thickeners, etc. can also be added. Before use, especially before spraying, the formulated adhesive product must be filtered to remove polymer particles that may form in the adhesive.

Packaging
120kg polyethylene plastic drum, 1100L container, tank truck.

Save
Stored in the original airtight container at 23°C, the shelf life of Dabaike U54 after shipment is 6 months. Storage Avoid storage temperatures above 30°C. The storage temperature should not be lower than 5°C, otherwise the product will freeze and solidify. Frozen Dapedia U54 will be completely useless. The packaging container must be tightly closed and protected from direct sunlight, otherwise the evaporation of water will cause it to form a non-redispersible polymer film.

Depending on the application field or the technical performance of customized products, resin dispersions, emulsifiers, thickeners, etc. can also be added. Before use, especially before spraying, the formulated adhesive product must be filtered to remove polymer particles that may form in the adhesive.

Packaging
120kg polyethylene plastic drum, 1100L container, tank truck.

Save
Stored in the original airtight container at 23°C, the shelf life of Dabaike U54 after shipment is 6 months. Storage Avoid storage temperatures above 30°C. The storage temperature should not be lower than 5°C, otherwise the product will freeze and solidify. Frozen Dapedia U54 will be completely useless. The packaging container must be tightly closed and protected from direct sunlight, otherwise the evaporation of water will cause it to form a non-redispersible polymer film.