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Urea Formaldehyde Resin A-81HW

Urea Formaldehyde Resin A-81HW is a kind of aldehyde condensation resin with higher MW of 600-1000, which is colorless or yellowish. It is soluble in almost paint solvents but not in water and compatible with almost coating raw materials, it is excellently yellowing-resistant. It is usually as grinding resin in universal pigment dispersion and applied widely in coating formulation. It can effectively improve adhesion, hardness, gloss, solid content of paint and fullness of coatings. It is a kind of excellent multifunctional additive to coating/painting.

Chemical Name :
Urea formaldehyde resin
Application :
Coating, Paint, Adhesives,Gloss coats,nail polish, plastic, printed circuits
Product model :
A-81HW
Appearance :
Colorless or little yellowish pastilles
brand :
Kabasph

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product introduction

Urea Formaldehyde Resin A-81HW from China AAB Group is a high polyaldehyde condensation resin with a molecular weight of 600-1000, colorless or slightly yellow. It is soluble in most coating solvents, insoluble in water, compatible with most coating raw materials, and has excellent yellowing resistance. It is usually used as a grinding resin for general pigment dispersions and is widely used in coating formulations. It can effectively improve the adhesion, hardness, gloss, solid content and fullness of the coating. It is a multifunctional coating/paint additive with excellent performance.

Compatibility

Urea formaldehyde resin A-81HW is compatible with many coatings raw materials including:

Alkyd resin	Phenolic resin	Vinyl chloride copolymers	Phthalate plasticizer
Cellulose nitrate	Urea-formaldehyde resin	Acrylic resin	Melamine-formaldehyde resin
Cellulose acetate-butyrate	Epoxy resin	Polyurethane resin	Polyamide resin
Petroleum resin	Rosin	Chlorinated rubber

Solubility

Urea formaldehyde resin A-81HW is soluble in almost common paint solvents such as aromatic hydrocarbons, alcohols, ketones, esters and so on but insoluble in water. Its solubility in nonpolar solvents such as mineral oil, aliphatic hydrocarbon, alicyclic hydrocarbon is limited.

Properties

Item	Urea Formaldehyde Resin A-81HW	Test Method
Appearance	Colorless or little yellowish pastilles	Naked eye
Softening temperature(℃)	80-100	ISO 4625-1:2004
Color number^[1] (Hazen)	≤1	ISO 4630-1:2004
Acid value(mg KOH/g)	≤3	ISO 2114:2004
Hydroxyl value(mg KOH/g)	30-80	DIN 53240-2:1998
Density(g/cm³)	1.10±0.05	ISO 1183-1:2004(E)B
Moisture content(%)	≤1.0	ISO760:2000
MW	600-1000	GPC

Application

Urea formaldehyde resin A-81HW is used in fields with higher requirements for weather resistance and surface quality,such as Automotive Coatings, wildly applied in the following fields:

• Paint & Coating: It used to improve the yellowing resistance, weather resistance, gloss and adhesion of coatings.

• Universal color paste: As a carrier resin for pigment color paste, it improves the compatibility and storage stability of pigment color paste.

• Ink system: Used to improve the gloss, adhesion, flexibility and pigment wettability of ink.

• Adhesive: Used to improve the leveling of adhesives and adhesion to substrates.

• Powder coatings: Used to improve the leveling of powder coatings and enhance adhesion to substrates.

• Plastic:Used as a plastic modification additive and a composite component of engineering plastics.

Storage

Urea formaldehyde resin A-81HW must be stored in dry and cool place, the period of validity is one year, it also can be used after one year if examined again and conformance to requirements.

Our Production base support customized models, and feel free to contact us for free samples and technical documents.

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Persisting on the operation concept of "Pursue honesty and quality at the same time, win hearts and profits together", the China AAB group’s people insist on the enterprise spirit of “environmental-friendly and continuous innovation, and dedicates service to all followers and customers around the world.” we have become long-term stable suppliers for many paint giants in the Europe, North American, the Middle East, Southeast Asia, Japan, South Korea and other countries and regions.