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Epoxies, Ect. 40-3909

Category:	Epoxy , Epoxy; Epoxide
Manufacturer:	Epoxies, Etc.
Trademark:	Epoxies, Ect.
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	qWKT7L_Epoxies-Ect-40-3909.pdf
PRICE:	Order Products email sales@su-jiao.com

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Message
40-3909 is a two component epoxy adhesive and coating filled with silver coated nickel. This electrically conductive epoxy resin provides low volume resistivity of less than 5x10^3 ohm-cm. Silver coated nickel offers a lower cost alternative to many silver filled epoxy systems. 40-3909 has a convenient 1:1 mix ratio by weight. It is designed to cure at room temperature overnight but can also be accelerated with mild heat. Due to its excellent electrical continuity and high thermal conductivity, 40-3909 has been used in the assembly or repairs of printed circuit boards, connectors, wave guides, high frequency shields, and as a cold solder. Features: Electrically conductive Thermally conductive Room temperature cure Easy 1:1 mix ratio Good bond strength Cost effective alternative to silver epoxy

Message

40-3909 is a two component epoxy adhesive and coating filled with silver coated nickel. This electrically conductive epoxy resin provides low volume resistivity of less than 5x10^3 ohm-cm. Silver coated nickel offers a lower cost alternative to many silver filled epoxy systems.

40-3909 has a convenient 1:1 mix ratio by weight. It is designed to cure at room temperature overnight but can also be accelerated with mild heat. Due to its excellent electrical continuity and high thermal conductivity, 40-3909 has been used in the assembly or repairs of printed circuit boards, connectors, wave guides, high frequency shields, and as a cold solder.

Features:

Electrically conductive

Thermally conductive

Room temperature cure

Easy 1:1 mix ratio

Good bond strength

Cost effective alternative to silver epoxy

General Information
Filler / Reinforcement	Nickel
Features	Bondability Electrically Conductive Good Adhesion Thermally Conductive
Uses	Connectors Electrical/Electronic Applications Printed Circuit Boards
Appearance	Grey

Mechanical	Nominal Value	Unit
Flexural Strength	70.3	MPa

Thermal	Nominal Value	Unit
Thermal Conductivity	1.4	W/m/K

Additional Information	Nominal Value	Unit
Operating Temperature	-40.0 to 135	°C

Uncured Properties	Nominal Value	Unit
Color	Grey
Mix Ratio by Weight (PBW)
Part A	1.0
Part B	1.0
Density
25°C ¹	3.03	g/cm³
25°C ²	3.03	g/cm³
Curing Time
90°C	0.25	hr
65°C	1.0	hr
25°C	24	hr
Pot Life ³(25°C)	60	min
Shelf Life	12	month

Cured Properties	Nominal Value	Unit
Shore Hardness (Shore D)	80
Lap Shear Strength ⁴	14.5	MPa
Volume Resistivity	5.0E-3	ohms·cm

Note Message
1 .	Part B
2 .	Part A
3 .	100 grams
4 .	Al to Al

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