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About Paint and Protective Coatings
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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.
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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 fl. oz. | Paste | 20 | 24 | 500 | -65° to 300° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Silver, Plastic, Composites, Fiberglass | Off-White | 0000000 | 000000 |