HB Fuller - H.B. Fuller EV Therm 420 - Acrylics & Acrylates

Enhanced TDS

Chemical Family: Acrylics & Acrylates
Product Type: 2K (2 component) Adhesive,
Conductive Adhesive,
Structural Adhesive,
Thermal Adhesive
Technologies: Adhesives & Sealants
Product Families: Adhesives & Sealants — Functional Adhesives
Conductive Adhesives,
Structural Adhesives,
Thermal Adhesives

Labeling Claims

Low Odor

Ready-to-Use Product Features

Excellent Multi-Substrate Adhesion,

Features and Benefits Information

This product has following Features and Benefits

Thermally Conductive
No Surface Preparation Required
Excellent Adhesion Properties
Excellent Strength to Metals, E-Coat, Thermoplastics, Thermosets, and Engineering Plastics
High Impact Resistance
Suitable for Easy Manual and Pneumatic Dispensing
UL94 V0 Flame Retardancy
100% Reactive
Room Temperature Cure
10:1 meter-mix product for ease of application
Use on aluminum, stainless and plated steels forms tough, high strength bonds without surface preparation
Low Odor

Flame Rating

UL 94 V0

Physical Form

Liquid

Appearance

Off white or amber viscous liquid

Cured Mechanical Properties


	Value	Units	Test Method / Conditions
Gap Fill Dimension Hardness	75 Shore D	-	ASTM D2240
Over Lap Shear Strength Carbon Steel	16.0	MPa	ASTM D1002, 25°C 50% RH
Over Lap Shear Strength Aluminum	16.0	MPa	ASTM D1002, 25°C 50% RH
Over Lap Shear Strength Nickel Coated Low - Carbon Steel Plated	22.0	MPa	ASTM D1002, 25°C 50% RH
Thermal Conductivity	1.0	W/mK	-
Dielectric Strength	18.1 - 19.9	kV/mm	-
Elongation at Break	min. 4	%	-

Cured Thermal Properties


	Value	Units	Test Method / Conditions
Thermal Service Range	-67 - 212	°F	-

Technical Data

Uncured Properties


	Value	Units	Test Method / Conditions
Flash Point	min. 200	°F	-
Open Time	6 - 9	minutes	-
Fixture Time	10 - 20	minutes	-
Cure Temperature and Time (room temperature)	24.0	hr	-

Rheological Properties

General Instructions: The product is best used at temperatures between 65°F and 80°F. Temperatures below 65°F will slow the cure speed of the material and viscosities will be higher. Temperatures above 80°F will cause the material to cure faster and viscosities will be lower. For consistent dispensing maintain temperature in the above mentioned range. For optimum bond strength and to insure maximum performance in the finished assembly mate parts together within the specified work time of the adhesive. Make sure the bond joint has uniform coverage and that a sufficient amount of adhesive is in the bond area. It is important to have the adhesive applied, parts aligned and positioned, within the established work times for the product. To ensure maximum performance in the finished assembly parts should remain undisturbed until the fixture time is reached.

Packaging Type: Drums,
Pails
Packaging Information: EV Therm 420 is conveniently packaged in 50 ml, 490 ml, pail, and drum kits.

Shelf Life: 9 months
Storage Information: Product should be stored in a cool dry place out of direct sunlight. The shelf life of EV Therm 420 is 9 months from date of manufacture. Shelf life is based on the products being stored properly at temperatures between 55°F and 75°F. Exposure to temperatures above 75°F will reduce the shelf life. This product should NEVER BE FROZEN.