FEISPARTIC F423

Shenzhen Feiyang Protech Corp., Ltd

Shenzhen Feiyang Protech Corp., Ltd · FEISPARTIC

FEISPARTIC F423 is a high-purity, solvent-free polyaspartic resin developed as an aminofunctional co-reactant for polyisocyanates in advanced coating and elastomer systems. It features low viscosity and very low residual fumarate monomer content, enabling the formulation of high-solid or solvent-free coatings with improved environmental performance. The resin exhibits high reactivity, achieving rapid surface drying in as little as 15 minutes when reacted with HDI trimers, enhancing production efficiency. It delivers coatings with excellent gloss, leveling, and film fullness, along with outstanding resistance to weathering, water, chemicals, and abrasion. Additionally, it provides strong adhesion to plastics and metals, broad compatibility with other resins, and versatility for both elastic systems (high elongation and tensile strength) and rigid coatings requiring high hardness and durability.

Specifications

Identifiers

Chemical name
Fumaric Acid Diethyl Ester; Aspartic acid, N,N'-(methylenedi-4,1-cyclohexanediyl)bis-, 1,1',4,4'-tetraethyl ester; Polyaspartic Resin
CAS number(s)
623-91-6, 136210-30-5
EC number
210-819-7; 429-270-1
Synonyms
Solvent-free aminofunctional co-reactant for polyisocyanates, Aspartic acid ester, Diethyl fumarate

Technical specifications

Properties

PropertyValueUnit
AppearanceLiquid, viscous-
ColorColorless to light yellow green transparent liquid-
OdorSlight inherent odour-
Flash Point> 93°C
Relative Density1.06 ± 0.02 (at 25 °C)g/cm³
Water SolubilityNot soluble in water-
Partition coefficient (n-octanol/water)5.16 (at 20 °C)-
Decomposition Temperature≈ 230°C
Dynamic viscosity800 – 2500 (at 25 °C)mPa·s

Specifications

Test ConditionSpecificationValueUnitTest Method
-AppearanceColorless to light yellow green transparent liquid--
-Color250 (max.)-Hazen Pt-Co
-Solid Content99.5 (min.)%-
-Diethyl fumarate content0.1 (max.)%-
-Amine Value190 – 215mg KOH/g-
-Amine Equivalent277g/mol-
-Hydroxyl value equivalent6.13%-
at 25 °CDynamic Viscosity800 – 2500mPa·s-
at 25 °CRelative Density1.06 ± 0.02--
-Shelf Life12 months--
-Storage Temperature40 (max.)°C-
Industries
AutomotiveBuilding & ConstructionPaints & CoatingsPlastics & Rubber
Product groups
Polyaspartic Resins
Applications
Foam coatingsLiquid car coatingOffshore steel structureOverhead pipeline DTMSpray polyurea elastomersWall & roof waterproof coatingsWind bladeWood coatings
Functions
BinderChain extenderCrosslinking co-reactant
Market segments
Anti-corrosion systemsAutomobilesElastomersWaterproofingWind power

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