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For Use On For Use On |
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![]() | Cartridge |
Certificate Certificate |
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![]() | Material Certificate with Traceable Lot Number and Product Shelf Life |
Clarity Clarity |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Dielectric Strength Dielectric Strength |
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Hardness Rating Hardness Rating |
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Mixer Nozzle Included Mixer Nozzle Included |
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Mixing Required Mixing Required |
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Overall Dry Time Overall Dry Time |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Tensile Strength Tensile Strength |
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Thermal Conductivity Thermal Conductivity |
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Touch Dry Time Touch Dry Time |
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About Paint and Protective Coatings
More
Heavy Duty High-Purity Coatings for Electronics

This coating is formulated for use in sensitive applications such as manufacturing semiconductors. Thinner than potting compounds, the coating flows easily into small spaces between electrical components. Use it to secure and insulate hardware on printed circuit boards. Rigid and wear resistant, has excellent chemical and moisture resistance, withstands a wide range of temperatures, and provides excellent electrical insulation. It requires a gun and a mixer nozzle (each sold separately) to dispense.
Certificates with a traceable lot number and product shelf life are available for these products. Download certificates from ACTIVITY after your order ships.
Dry Time | ||||||||||
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Mfr. Model No. | Container Size | Consistency | Touch, min. | Overall, hrs. | Dielectric Strength, V/mil | Temp. Range, °F | For Use On | Color | Each | |
Loctite® Coatings—Extra Hard | ||||||||||
M-21HP | 1.7 oz. | Paste | 20 | 24 | 500 | -65° to 300° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Silver, Plastic, Composites, Fiberglass | Off-White | 0000000 | 000000 |
Mixer Nozzle for 1.7-oz. Cartridges | 00000000 | Each | 00000 |
Dispensing Gun for 1.7-oz. Cartridges | 00000000 | Each | 00000 |
Mixer Nozzle for 6.8-oz. Cartridges | 00000000 | Each | 0000 |
Snap In | 000000000 | Each | 0000 |
Twist Lock | 0000000 | Each | 0000 |
Twist Lock | 000000000 | Each | 0000 |
10:1 Mix Ratio Plunger | 0000000 | Each | 000000 |
10:1 Mix Ratio Plunger | 0000000 | Each | 000000 |