Reactive Diluents

 Epotec® Reactive Diluents are epoxy group-containing functional products which are low viscosity glycidyl ethers that can react with the curing agents to become the part of the cross-linked epoxy system. Reactive diluents are mainly used to reduce the viscosity of the base resin based on Bisphenol A, F and EPN resins to improve handling and ease of processing in various applications.  They are used in formulating solvent free paint and coating compounds as well as additives in combination with other polymers to improve adhesion, stabilization against degeneration reactions. They can be also used to optimize performance properties such as impact strength, adhesion, flexibility, filler-loading and solvent resistance of the epoxy system. 

The Epotec series of Reactive Diluents is the broadest available and in demand worldwide.

 Epotec® Reactive Diluents are divided mainly in three groups - Aliphatic, Aromatic and Cycloaliphatic. They are further classified based on their functionality as Mono-Functional, Di-Functional and Tri-Functional.

Mono-Functional Aliphatic Reactive Diluents

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Grade EEW1 Viscosity2 Color3 Features
RD 108 270 - 300 5 - 10 0.5 C12 - C14 glycidyl ether - good diluent and morphology, improved impact strength.
RD 109 275 - 300 5 - 10 0.5 C12 - C13 glycidyl ether.
RD 110 215 - 230 2 - 15 0.5 2 - Ethyl hexyl glycidyl ether.
RD 118 225 - 245 4 - 9 0.5 C8 - C10 glycidyl ether.
RD 123 235 - 255 4 - 9 0.5 Better non-yellowing characteristics compared to aromatic mono-functional reactive diluents. Excellent wetting characteristics.

 1 Epoxy Equivalent Weight (grams / equivalent), 2 Brookfield Viscosity @ 25°C (cPs), 3 Gardner Colour scale (max)

Di-Functional Aliphatic Reactive Diluents

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Grade EEW1 Viscosity2 Color3 Features
RD 103 130 - 145 12 - 22 0.5 1,4 - Butanediol diglycidyl ether - good property retention, moderate diluent.
RD 103LE 120 - 130 10 - 20 0.5 1,4 - Butanediol diglycidyl ether - improved wetting characteristics, reduce viscosity.
RD 107 147 - 161 15 - 25 0.5 1,6 - Hexanediol diglycidyl ether - good property retention, moderate diluent.
RD 111 145 - 165 45 - 75 0.5
Cyclohexane dimethanol - Good maintenance of physical properties and modulate dilution efficiency
RD 114LE 130 - 145 12 - 18 0.5 Neopentyl glycol diglycidyl ether - good property retention, moderate diluent.
RD 119LE 315-335 50- 70 0.5 Polypropylene glycol diglycidyl ether - imparts flexibility, improves water dispersibility.
RD 119HE 385 - 405 37 - 47 3 Long-chain aliphatic diglycidly ether - imparts flexibility, increase elongation, improved impact resistance.
RD 121 165 - 180 15 - 30 0.5 Dipropylene glycoldiglycidyl ether - improve impact strength & elongation.

1 Epoxy Equivalent Weight (grams / equivalent), 2 Brookfield Viscosity @ 25°C (cPs), 3 Gardner Colour scale (max)

Tri-Functional Aliphatic Reactive Diluents

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Grade EEW1 Viscosity2 Color3 Features
RD 113 130 - 150 100 - 250 0.5 Trimethylol propane triglycidyl ether.
RD 124 500 - 600 250 - 500 8 Imparts flexibility and impact resistance.Low odor and non-volatile

1 Epoxy Equivalent Weight (grams / equivalent), 2 Brookfield Viscosity @ 25°C (cPs), 3 Gardner Colour scale (max)

Multi-Functional Aliphatic Reactive Diluents

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Grade EEW1  Viscosity2  Color3  Features
RD 129 150 - 165 700 - 1,000 0.5 Pentaerythritol based polyglycidyl ether - low viscosity. 
RD 131 160 - 180 1,000 - 1,360 1 Medium viscosity polyglycerol based glycidly ether - adhesion promoter.

1 Epoxy Equivalent Weight (grams / equivalent), 2 Brookfield Viscosity @ 25°C (cPs), 3 Gardner Colour scale (max)


Mono-Functional Aromatic Reactive Diluents

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Grade EEW1  Viscosity2  Color3  Features
RD 104 155 - 170 6- 12 0.5 Phenyl glycidyl ether - better diluent, retention of chemical resistance.
RD 105 175 - 190 5 - 10 0.5 Cresyl glycidyl ether - overall excellent properties.
RD 106 215 - 240 10 - 30 0.5 p-tertiary Butyl phenyl glycidyl ether - low vapor pressure, low dilution efficiency.

1 Epoxy Equivalent Weight (grams / equivalent), 2 Brookfield Viscosity @ 25°C (cPs), 3 Gardner Colour scale (max)