Aldehyde Resin A-81 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.
Spefications:
Item
|
Test standard
|
A-81
|
Appearance
|
Visual
|
White pellets
|
Specific
gravity(20 ¡æg/cm3)
|
ISO 1183-1:2004(E)B
|
1.1
|
Hydroxyl
£¦#118alue(mgKOH/g)
|
DIN 53240-2:1998
|
55¡À10
|
Acid
£¦#118alue(mgKOH/g)
|
ISO 2114:2000
|
<1
|
Chroma
Color
|
ISO 4630-1:2004
|
¡Ü1
|
Softening
point(¡æ)
|
ISO 4625-1:2004
|
95¡À10
|
Solubility
It is soluble in almost all
paint solvents, such as aromatic hydrocarbons,alcohols,ketones,esters,but
please note that it is insoluble or have low solubility in water,in a
completely non-polar solvents such as mineral oil,aliphatic hydrocarbons,alicyclic
hydrocarbons.
Application
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.
General Formulations:
It shall account for 5%-15% in
general formulations,and it will be better less than 20%.In some
coatings,A-81 resin will affect the levels of adhesive,flexibility,or
weatherability.If there are no specials requirements,5% can also be used
directly as coating,printing ink, paints as excellent additives.
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Hit£º1757 Time£º2018/8/6 |
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