KY-A81 Aldehyde Resin

Taxonomy:Aldehyde Resin
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Date of release:2018/05/30
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Detailed introduction

醛树脂

KY-A81 Aldehyde Resin

KY-A81 Aldehyde resin is a kind of condensation from urea and aliphatic aldehydes, bright and resistant to yellowing. It shows excellent compatibility with many coating/printing raw materials. It is soluble in most organic solvents and has very good wetting and dispersion in the formulation of paints. It is a kind of marvelous multifunctional coating additive used to improve the adhesion, gloss, hardness, solid content, and fullness. It can also be used in universal pigment pastes.

Properties

		KY-A81
Appearance	eye test	White or little yellowish beads or powder
softening temperature （ISO 4625-1:2004)	Degree Celsius	90-100
color number ① (ISO 4630-1:2004)	Hazen	＜1
acid value (ISO 2114-2000)	mg KOH/g	＜3
hydroxyl value (DIN 53240-2:1998)	mg KOH/g	40-60
Kinematic viscosity② (GB/T 1660-2008)	mm²/s	≥15
Density (ISO1183-1:2004(E)B)	G/cm3	1.05-1.15

Application

● Because of their excellent solubility and compatibility, KY-A81 can be used in many types of ink/coating formulations.

● Depending on the application, KY-A81 improves the gloss, hardness, adhesion, and resistance to yellowing of coating.

● Because of their good pigment wetting and very low solution viscosity, KY-A81 can be used for the manufacture of pigment pastes with high pigment content.

● KY-A81 is very stable in heat and can be used for baking finishes, and it will not cause odor or discoloration.

● Because of its relatively low solvent retention, it only leads to a slight increase of the drying time of physically drying finishes (e.g. cellulose and nitrate).

Storage and shipping

Shipped in a light-free condition and stored at a dry room temperature. Shelf life is usually 1 year. If the bags are not open, that are stored in a dry and well ventilated place, and if the property is tested OK, it can last up to 2 years.