A81 Aldehyde Resin for Water-based Coatings (for ink,paint)

Product Description


Aldehyde resin K-A 8 1 H W is a kind of aldehyde condensation resin, 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.


Product Parameters

 

Item		K-A81HW
Apperance	eye test	White or little yellowish beads or powder
softening temperature （ISO 4625-1:2004)	Degree Celcius	80-100
color number (ISO 4630-1:2004)	Hazen	≤ 1
acid value (ISO 2114-2000)	mg KOH/g	≤3
hydroxyl value(DIN 53240-2:1998)	mg KOH/g	30-80
Density(ISO1183-1:2004(E)B)	G/cm3	1.10±0.05
Moisture content(ISO760:2000)	%	≤1.0

[1] 50% (mass fraction) solution in butyl acetate and ethanol, butyl acetate and ethanol account for 85% and 15% respectively.
[2]50% resin solution of ethanol, solution temperature remains 25°C when viscosity is tested

Usage method

Solubility:
Aldehyde Resin K-A81HW 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.
Compatability:                                                        
Aldehyde Resin K-A81HW is compatible with many coatings raw materials including:
• Alkyd resin
• Cellulose nitrate
• Cellulose acetate-butyrate
• Petroleum resin
•Phenolic resin
• Urea-formaldehyde resin
• Epoxy resin
• Rosin
• Vinyl chloride copolymers
• Acrylic resin
• Polyurethane resin
• Chlorinated rubber
• Phthalate plasticizer
• Melamine-formaldehyde resin
• Polyamide resin

Application

• Aldehyde Resin K-A81HW can be used in many types formulation of coating/printing.
• Aldehyde Resin K-A81HW can improve gloss, hardness, adhesion, and yellowing resistance of coating/printing.
• Aldehyde Resin K-A81HW shows excellent wetting to filling and pigment, and is a kind of excellent grinding resin in universal pigment and can improve solid content when applied in coating.
• Aldehyde Resin K-A81HW is usually used in formulation if common coating/printing.
• Aldehyde Resin K-A81HW is usually used in formulation of environmental-friendly coating/printing

Package & Storage

25kg composite kraft paper packaging bag (including inner bag)
Others: can be customized according to customer's needs.
Aldehyde Resin K-A81HW 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.
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