Name: PERMABOND TA4820
Brand: Permabond, LLC
SKU: PERMABOND TA4820

Main features

Extended 10-15 Minute Pot Life
Thixotropic 2 mm Gap Filling
High Peel Strength with Cured Elongation

Product Description

Permabond TA4820 is a two-component 1:1 toughened methacrylate structural adhesive for thermoplastics, thermosets, metals and composites. At 23 deg C, pot life is 10-15 minutes, fixture time is 25-35 minutes and handling strength is reached in 45-60 minutes. The thixotropic adhesive fills gaps up to 2 mm and can be dispensed through a static mixer. After cure, typical lap-shear strength is 21-28 N/mm2 on steel and 17-24 N/mm2 on aluminum. Typical peel strength is 70-90 N/25 mm, and cured elongation is 15-20%.

Key features

10-15 minute pot life: Pot life is 10-15 minutes at 23 deg C, followed by 25-35 minute fixture time.
Thixotropic 2 mm gap filling: The 1:1 adhesive fills gaps up to 2 mm and can be dispensed through a static mixer.
Peel strength with cured elongation: Typical peel strength is 70-90 N/25 mm to ISO 4578 and cured elongation is 15-20% to ISO 37.

Applications

Structural bonding of thermoplastics, thermosets, metals and composites.

TDS, SDS & Technical Documents

Technical Specifications

General Properties

Appearance

Off-white/Amber

Chemistry Type

Methyl methacrylate

Specific Gravity

1.0

Physical Properties

Viscosity

200,000-300,000/120,000-200,000 mPa.s

Mechanical Properties

Elongation

15 - 20 %

Electrical Properties

Dielectric Strength

30-50 kV/mm

Additional Information

Technical properties

As-supplied / before-processing properties

Property	Value	Unit	Method / condition
Part A viscosity	200,000-300,000	cP	25 deg C
Part B viscosity	120,000-200,000	cP	25 deg C
Mix ratio	1:1	-	Part A : Part B
Maximum gap fill	2	mm	Mixed adhesive
Pot life	10-15	min	10 g + 10 g mixed mass; 23 deg C