Master Bond EP21TDC-4 Two Component, Highly Flexible Epoxy System

Category	Polymer , Adhesive , Thermoset , Epoxy , Epoxy Adhesive
Manufacturer	Master Bond Inc.
Trade Name
Port	Shanghai port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Master Bond EP21TDC-4 Two Component, Highly Flexible Epoxy System.pdf
Price	EMAIL US sales@lookpolymers.com
	Online Service lookpolymers 27660005

Material Notes:

Master Bond Polymer System EP21TDC-4 is a two component, flexible epoxy resin system for high performance bonding, sealing and coating. It is formulated to cure at ambient temperatures or more quickly at elevated temperatures, with a one to four mix ratio by weight. The cured system has a peel strength greater than 30 pli and an elongation of over 200%. EP21TDC-4 bonds well to a wide variety of metals, plastics and especially rubbers.

Physical Properties	Metric	English	Comments
Water Absorption	<= 1.0 %	<= 1.0 %	tap water submersion @25°C for 14 days
Viscosity	9000 - 14000 cP	9000 - 14000 cP	Part A
	225000 - 350000 cP	225000 - 350000 cP	Part B

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	30	30	after curing for 24 hrs at 25°C and 5 hours at 65°C
Tensile Strength	>= 20.7 MPa	>= 3000 psi
Elongation at Break	>= 200 %	>= 200 %
Shear Strength	>= 6.89 MPa	>= 1000 psi	Al to Al
Peel Strength	>= 5.26 kN/m	>= 30.0 pli

Thermal Properties	Metric	English
CTE, linear	110 - 130 µm/m-°C	61.1 - 72.2 µin/in-°F
Maximum Service Temperature, Air	121 °C	250 °F
Minimum Service Temperature, Air	-73.3 °C	-100 °F

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+13 ohm-cm	>= 1.00e+13 ohm-cm

Processing Properties	Metric	English	Comments
Cure Time	180 - 240 min @Temperature 65.6 °C	3.00 - 4.00 hour @Temperature 150 °F
	240 - 300 min @Temperature 23.9 °C	4.00 - 5.00 hour @Temperature 75.0 °F
Pot Life	>= 90 min	>= 90 min	100 gram mass
Shelf Life	12.0 Month @Temperature 23.9 °C	12.0 Month @Temperature 75.0 °F	in original unopened containers

Descriptive Properties	Value	Comments
Mixing Ratio (A to B)	1:4

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