H.B. Fuller - FH8620 - 1K (1 component) Adhesive

Enhanced TDS

Identification & Functionality

Chemical Family: Epoxides,
Epoxy & Epoxy Derivatives
Product Type: 1K (1 component) Adhesive,
Reactive Adhesive
Technologies: Adhesives & Sealants
Product Families: Adhesives & Sealants — Bonding Technology
1K Liquid Reactive Adhesives

Features & Benefits

Labeling Claims: Halogen-free,
Non-Corrosive
Ready-to-Use Product Features: Electrically Non Conductive,
Fast Cure,
Good Adhesion,
High Temperature Resistance,
Low Shrinkage,
Low Temperature Curing,
Low Temperature Resistant,
Low Warpage
Features and Benefits: One component; no mixing required

Fast cure at 80°C

Low modulus to prevent warpage

Non-conductive; non-corrosive

Halogen free; REACH and Rohs compliant

High and low temperature resistance

Applications & Uses

Markets: Consumer Goods
Applications: Consumer Goods — Appliances & Electronics
Directions for Use: 1. Prior to bonding, surfaces must be free of any dust, oils, or other contaminants.
2. Bring material to room temperature (25°C) before using (typical thaw time for 30mL syringes is 2-4 hours). We do not recommend thawing the material more than 3 times.
3. FH8620 is sensitive to humidity; do not expose the material to air for an extended period of time. The recommended relative humidity during dispensing is <60%.
4. If the material is left idle in the syringe tip for an extended period of time, the tip should be purged or solvent cleaned.
5. Seal any remaining material and store immediately at -18°C.
Clean-Up: Equipment and any spillage can be cleaned promptly after use with a mixture of anhydrous isopropyl alcohol and acetone that should be discarded after each use.

Properties

	Value	Units	Test Method / Conditions
Hardness (cured 30 min, at 80°C)	80.0	-	Shore D
Elongation at Break (cured 30 min, at 80°C)	1.8	%	-
Shear Strength (cured 30 min, at 80°C)	14.0	MPa	-
Glass Transition Temperature (cured 30 min, at 80°C)	33.0	°C	-
Coefficient of Thermal Expansion (Alpha 1, cured 30 min, at 80°C)	65.0	m/m.°C	-
Coefficient of Thermal Expansion (Aplha 2, cured 30 min, at 80°C)	195.0	m/m.°C	-
Water Absorption (after 24 h, cured 30 min, at 80°C)	0.16	%	-

	Value	Units	Test Method / Conditions
Pot Life	3.0	days	-

Regulatory & Compliance

Technical Details & Test Data

Cure Schedule: Cure schedule:

10-20 minutes at 80°C

20-30 minutes at 70°C

FH8620 will cure faster with increased temperature. The curing temperature and curing time should be adjusted according to the heating device and the material to be bonded.

Packaging & Availability

Storage & Handling

Shelf Life: 6 Months
Storage Conditions: FH8620 should be stored at -18°C.
Shelf life is a 6 months from date of manufacture, in original unopened containers.