Aldehyde Resin SH-A81 is a kind of aldehyde polycondensation resin, which is colorless or yellowish. It is soluble in almost paint solvents but not in water and compatible with practically all coatings raw materials, it is excellently yellowing-resistant. It is mainly used as grinding resin in universal pigment and applied in coating formulation. It is a kind of outstanding vehicle for paint and can effectively improve the adhesion, hardness, gloss, solid content of the paint and fullness of coatings. It is a kind of excellent multifunctional additive to coating/painting. 

Solubility 

Aldehyde Resin SH-A81 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. 

Application 

-The excellent solubility and compatibility of Aldehyde Resin SH-A81 enable it to be used in many types of coating/printing formulation. 

-It can be used to improve gloss, hardness, adhesion, and yellowing resistance. 

-It shows excellent wetting to the coating and filling, it has low dissolved and melting viscosity, -It is a kind of excellent grinding resin in universal pigment and can improve the solid content when applied in coating. 

Storage 

Aldehyde Resin SH-A81 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.