H.B. Fuller EV Protect 300

Identification

Chemical Family

Polyurethanes (PU)

GBU

EA

RTU Product Type

Encapsulant,

2K (2 component) Adhesive

Categories

Markets → Automotive & Transportation → Applications → Automotive → Electrical & Electronic Systems

Markets → Electrical & Electronics → Applications → Packaging & Assembly → Potting Compounds

Markets → Electrical & Electronics → Applications → Parts & Components → Batteries

Technologies → Adhesives & Sealants → Product Families → Functional Adhesives → Encapsulants

Applications

Application Area

Batteries,

Battery Cells,

Electric Vehicle (EV)

Applications & Uses

Cure Profile

Full room temperature cure is achieved within 2-4 days and may be expeditated with an oven cure.

Mixing Information

• Use suitable 2-part metering and mixing equipment. The A-component settles over time and requires mixing before use.
• Blend ratio is 4:1

Features

Ready-to-Use Product Features

Excellent Flow Properties,

Fast Curing,

Flame Retardant,

Good Thermal Conductivity,

Highly Flexible,

Low Viscosity,

Soft,

Reduces Thermal Propagation,

Room Temperature Curing

Features & Benefits

Typical Features & Benefits

• Flame retardancy meets requirements of UL94 Flammability of Plastic Materials Vertical
• Burn Test Rating V-0

Packaging & Availability

Regional Availability

• Asia Pacific
• Europe
• North America
• Latin America
• India/MiddleEast/Africa (IMEA)

Physical Properties

Physical Form

Liquid

Appearance

Off white liquid

Properties

Density:

1310 kg/m³

Glass Transition Temperature (Tg):

22 °C

Shelf Life:

11.99755 months

Specific Gravity:

1.31

Tensile Strength:

9.1 MPa

Viscosity:

2500 cps

Physical Properties

	Value	Units	Test Method / Conditions
Coefficient of Thermal Expansion (alpha 1)	73	μ/m/°C	Thermomechanical Analyzer
Coefficient of Thermal Expansion (alpha 2)	235	μ/m/°C	Thermomechanical Analyzer
Glass Transition Temperature	22	°C	Thermomechanical Analyzer
Hardness	60	Shore A	ASTM D-2240
Thermal Conductivity	0.512	W/mK	-

Component B

	Value	Units	Test Method / Conditions
Density	10.1	lb-mass/gal	ASTM 0792
Viscosity (at 25°C)	1000	cPs	Brookfield RV

Uncured Properties

	Value	Units	Test Method / Conditions
Blend Ratio (by volume)	100:27.8	-	-
Blend Ratio (by weight)	100:25	-	-
Density (blend uncured)	11	lb-mass/gal	ASTM 0792
Gel Time (at 25°C)	9	minutes	-
Viscosity (at 25°C, blend)	2000	cPs	Brookfield

Component A

	Value	Units	Test Method / Conditions
Density	11.2	lb-mass/gal	ASTM 0792
Viscosity (at 25°C)	2500	cPs	Brookfield RV

Cured Properties

	Value	Units	Test Method / Conditions
Elongation at Break	147.6	%	ASTM D638
Tensile Strength (at break)	9.1	MPa	ASTM D638
Young's Modulus	2.2	MPa	ASTM D638

Typical Properties

	Value	Units	Test Method / Conditions
Consistency	Low viscosity liquid	-	-
Curing Time	2 - 4	days	-

Appearance

Off white liquid

Regulatory & Compliance

Certifications & Compliance

UL 94

Storage & Handling

Storage and Shelf Life

Components should be stored in a cool, dry area. The B-component should be kept in a tightly sealed container flushed with nitrogen.

Shelf Life

180 days (Component B), 365 days (Component A)

Thermal Properties

Flame Rating

UL 94 V0