3M Scotch-Weld™ DP820 Acrylic Adhesives

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3M Scotch-Weld™ DP820 Acrylic Adhesives
Categories:	Polymer; Adhesive; Thermoset; Acrylic/Cyanoacrylate Adhesive
Material Notes:	3M™ Scotch-Weld™ Acrylic Adhesive DP820 is a two-part, 1:1 mix ratio, toughened acrylic structural adhesives. They exhibit excellent shear and peel strengths along with good impact and durability and bond well to many metals, ceramics, wood and most plastics. Information provided by 3M
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Physical Properties	Original Value	Comments

Viscosity	45000 cP	Accelerator
	70000 cP	Base

Mechanical Properties	Original Value	Comments
Hardness, Shore D	75
Elongation at Break	50 - 75 %	ASTM D882
Shear Strength	300 psi	Overlap, Aluminum -solvent cleaned only
	300 psi	Overlap, CRS/CRS tested after 120°C/2 wks
	700 psi	Overlap, Fiberglass Reinforced Plastic
	850 psi	Overlap, CRS/CRS tested after 90°C/2 wks/90% RH
	850 psi	Overlap, CRS/CRS tested after tap water 1 wk/RT
	1000 psi	Overlap, Etched Alum, 93°C/100% RH/2 wks
	1000 psi	Overlap, ABS
	1150 psi	Overlap, Polycarbonate
	1150 psi	Overlap, CRS (oily) 49°C/100% RH/2 wks
	1200 psi	Overlap, Galvanized Steel
	1200 psi	Overlap, Fir Wood
	1250 psi	Overlap, Acrylic
	1350 psi	Overlap, CRS/CRS after 7 days of Immersion in IPA
	1500 psi	Overlap, CRS/CRS after 7 days of Immersion in Gasoline
	1500 psi	Overlap, FR-4/FR-4 tested after tap water 1 wk/RT
	1600 psi	Overlap, FR-4/FR-4 tested after 90°C/2 wks/90% RH
	1650 psi	Overlap, Etched Alum (oily) 49°C/100% RH/4 wks
	1750 psi	Overlap, PVC
	1950 psi	Overlap, CRS/CRS after 7 days of Immersion in Machine Oil
	2000 psi	Overlap, FR-4 Glass Epoxy
	2000 psi	Overlap, FR-4/FR-4 tested after RT aging
	2400 psi	Overlap, Cold Rolled Steel (oily)
	2500 psi	Overlap, Cold Rolled Steel
	2500 psi	Overlap, Control
	2500 psi	Overlap, CRS/CRS tested after RT aging
	2900 psi	Overlap, Aluminum -etched/oily
	3100 psi	Overlap, Aluminum -120 frit sandpaper
	3200 psi	Overlap, Aluminum-etched
	3300 psi	Overlap, FR-4/FR-4 tested after 120°C/2 wks
	1450 psi @Temperature 93.0 °C	Overlap, Etched Alum/Etched Alum
	1900 psi @Temperature 83.0 °C	Overlap, Etched Alum/Etched Alum
	3100 psi @Temperature -55.0 °C	Overlap, Etched Alum/Etched Alum
	3150 psi @Temperature 23.0 °C	Overlap, Etched Alum/Etched Alum
Peel Strength	9.00 pli	180° T-Peel, Black SBR/CRS
	11.0 pli	180° T-Peel, Neoprene/CRS
	19.0 pli	180° T-Peel, Etched Al/Etched Al
	22.0 pli	180° T-Peel, Etched Al/Etched Al
	22.0 pli	180° T-Peel, Etched Al/Etched Al
	22.0 pli	180° T-Peel, Etched Al/Etched Al
	22.0 pli	180° T-Peel, Etched Al/Etched Al
	22.0 pli	180° T-Peel, Etched Al/Etched Al
	22.0 pli	180° T-Peel, Nitrile/CRS

Electrical Properties	Original Value	Comments
Volume Resistivity	2.20e+12 ohm-cm	ASTM D257
Surface Resistance	>= 1.60e+14 ohm	ASTM D257
Dielectric Constant	2.8 @Frequency 10000 Hz	ASTM D150
	2.8 @Frequency 100000 Hz	ASTM D150
	3.0 @Frequency 1000 Hz	ASTM D150
	3.1 @Frequency 500 Hz	ASTM D150
Dissipation Factor	0.022 @Frequency 100000 Hz	ASTM D150
	0.032 @Frequency 10000 Hz	ASTM D150
	0.065 @Frequency 1000 Hz	ASTM D150
	0.083 @Frequency 500 Hz	ASTM D150

Thermal Properties	Original Value	Comments
CTE, linear	180 µm/m-°C @Temperature 20.0 - 70.0 °C
Glass Transition Temp, Tg	58.0 °C

Processing Properties	Original Value	Comments
Cure Time	24.0 - 48.0 hour	Full cure

Descriptive Properties
Appearance	Off-white	Base
	Pale Yellow
	Yellow	Accelerator

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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3M Scotch-Weld™ DP825 Acrylic Adhesives

PMM34595 / 169342

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