McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    21 Products

    Conformal Coatings

    Image of Product. Front orientation. Conformal Coatings. Conformal Coatings, Aerosol Can.

    Aerosol

    Can

    Image of Product. Front orientation. Conformal Coatings. Conformal Coatings, Bottle.

    Bottle

    Image of Product. Front orientation. Conformal Coatings. Conformal Coatings, Pen.

    Pen

    These coatings protect circuit boards and other electronics from moisture, dust, and static. They’re thinner than potting compounds, so they flow into the smallest contours of your components to cover them completely. Apply these coatings without needing a potting box or other container. You can remove them if necessary.
    Acrylic Plastic—Acrylic plastic coatings are our thinnest option, so they’re the easiest to apply. They’ll also come off the easiest when you have to rework or repair your component—just use a solvent. These coatings dry in a day or less.
    Silicone/Acrylic Plastic—Silicone/acrylic plastic coatings combine the flexibility and temperature resistance of silicone with the thinness of acrylic for easy application. Use them in the environments you’d use silicone coatings, such as high-vibration and high-temperature areas.
    Sprayon—Sprayon acrylic plastic coatings dry in just 30 minutes, the quickest of our conformal coatings. They resist grease, oil, and alkalies. Ideal for metal parts, they prevent rusting. Along with circuit boards, they’re often used on batteries.
    Bottle—Coatings in a bottle come with a brush for touch-ups.
    Pen—Coatings in a pen are best for precise application. Use them to repair scratches and chips on components, or touch up areas you missed while coating. They’re also good for blocking off areas you don’t want solder to flow into.
    Ultraviolet—Coatings with ultraviolet visibility show up under a black light, so you can easily check if you’ve applied them evenly.
    IPC-CC-830—Coatings that meet IPC-CC-830 are certified for use on circuit boards.
    UL 94 V-0—Coatings that meet UL 94 V-0 have passed a test for flame retardance.
    Cannot Be Sold To—Coatings that cannot be sold to the listed areas are restricted due to VOCs (volatile organic compounds) regulations.
    Dry Time
    Temperature,
    ° F
    Container
    Size, fl. oz.
    Container
    Net Wt., oz.
    Touch,
    min.
    Overall
    Color
    Visibility
    Dielectric Strength,
    V/mil
    Min.
    Max.
    Specs. Met
    Flammability
    Rating
    For Use On
    Cannot Be Sold To
    Each
    Acrylic Plastic
     
    Aerosol Can
    —12324 hr.ClearUltraviolet1,000-85250IPC-CC-830UL 94 V-0
    		Aluminum, Brass, Bronze, Copper, Steel, Stainless SteelOutside United States and Canada6801A39000000
     
    Bottle
    1.8—1024 hr.ClearUltraviolet1,000-85255IPC-CC-830UL 94 V-0
    		PlasticCanada6801A20200000
     
    Pen—0.03" Diameter Tip
    0.16—1024 hr.BlackUltraviolet1,000-85255——PlasticCanada6801A20700000
    0.16—1024 hr.ClearUltraviolet1,000-85255IPC-CC-830UL 94 V-0
    		PlasticCanada6801A20800000
    0.16—1024 hr.GreenUltraviolet1,000-85255——PlasticCanada6801A20900000
    0.16—1024 hr.WhiteUltraviolet1,000-85255——PlasticCanada6801A21100000
     
    Acrylic Plastic—Sprayon EL2000
     
    Aerosol Can
    —111030 min.Clear—8,000Not Rated150Fed. Spec. TT-L-50—Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel—6801A4100000
     
    Silicone/Acrylic Plastic
     
    Aerosol Can
    —12848 hr.ClearUltraviolet1,000-40390—UL 94 V-0
    		PlasticCanada6801A20400000
     
    Bottle
    1.8—848 hr.ClearUltraviolet1,000-40390—UL 94 V-0
    		PlasticCanada6801A20300000
     
    Pen—0.03" Diameter Tip
    0.16—1048 hr.ClearUltraviolet1,000-40390—UL 94 V-0
    		PlasticCanada6801A20600000
     

    Conformal Coatings for Harsh Environments

    Image of Product. Front orientation. Conformal Coatings. Conformal Coatings for Harsh Environments, Bottle.

    Bottle

    High humidity, harsh chemicals, water submersions, and salt are no match for these electronic coatings. They also resist UV light, so they’ll work outdoors. Use them on circuit boards, sensors, and LED drivers in heavy machinery. They’re thinner than potting compounds, so they flow into the smallest contours of your components to cover them completely.
    PVDF—PVDF coatings are more flexible than epoxy coatings. They’re IPC certified for use on circuit boards. You can also use them to protect against corrosion on metal joints. To apply, brush or spray them on, or dip your components in.
    Dry
    Time, min.
    Container
    Size, fl. oz.
    Consistency
    Touch
    Overall
    Mixing
    Req.
    Dielectric Strength,
    V/mil
    Thermal Conductivity,
    W/(m⋅°C)
    Temp. Range,
    ° F
    Specs.
    Met
    For Use
    Outdoors
    For Use On
    Color
    Autoclavable
    Each
    PVDF—Hard
     
    Bottle
    1Thick Liquid530No7500.2-65 to 255IPC-CC-830YesAluminum, Brass, Bronze, Steel, Stainless Steel, Titanium, Cast Iron, Iron, Silver, Plastic, Rubber, Composite, FiberglassClearYes6148N12000000
     

    EMI/RFI Shielding Conformal Coatings

    Image of Product. Front orientation. Conformal Coatings. EMI/RFI Shielding Conformal Coatings.
    Protect sensitive electronic parts, enclosures, and prototypes from electromagnetic interference (EMI) and radio frequency interference (RFI) with these coatings. Also known as conductive paint, these coatings block EMI and RFI from disrupting electrical, data, and radio signals, which can cause circuit malfunctioning and data loss.
    For best adhesion, apply to clean, oil-free surfaces. If applying to highly chemical-resistant plastics such as PVC and PTFE, use a primer first.
    Carbon Acrylic Plastic—Carbon acrylic plastic coatings are made with ground carbon powder mixed with acrylic. They're best for RFI and low-frequency shielding applications, such as protecting jumpers and resistors in initial prototypes, since they're not as conductive as nickel and silver acrylic plastic coatings. They don’t contain metal, so they’re also great for electronics where metal-filled coatings could cause malfunction, such as metal detectors.
    Nickel Acrylic Plastic—Nickel acrylic plastic coatings are made with nickel flakes mixed with acrylic. They’re the best in our offering for protecting magnetic components, since they absorb and redirect magnetic fields. While not as conductive as silver acrylic plastic coatings, they still protect against a broad spectrum of EMI and RFI frequencies. Use them to repair small circuits on circuit boards and to coat devices such as meter and scanner housings. They have good corrosion resistance.
    Silver Acrylic Plastic—Silver acrylic plastic coatings are made with silver flakes mixed with acrylic. They’re the most conductive coatings in our offering, so they protect against the broadest spectrum of EMI and RFI frequencies. They’re also the most corrosion resistant. Use them to coat portable electronics, access panels, industrial cabinets, and engine control modules.
    Cannot Be Sold To—Coatings that cannot be sold to the listed areas are restricted by product labeling requirements.
    Dry Time
    Temperature,
    ° F
    Container
    Net Wt., oz.
    Consistency
    Touch,
    min.
    Overall,
    hr.
    Interference Reduction
    @ Freq.
    Surface Resistivity,
    ohm/sq.
    Min.
    Max.
    For Use
    On
    For Use
    Outdoors
    Color
    Cannot Be
    Sold To
    Each
    Carbon Acrylic Plastic
    12Thin Liquid52410 dB @ 1 GHz100-40245PlasticYesBlackCanada77075T111000000
     
    Nickel Acrylic Plastic
    12Thin Liquid52455 dB @ 1 GHz0.49-40245PlasticYesGrayCanada77075T11200000
     
    Silver Acrylic Plastic
    12Thin Liquid302470 dB @ 1 GHz0.10Not Rated185PlasticNoSilver—77075T39000000
     

    Solder Mask

    Image of Product. Front orientation. Solder Mask.
    Shield circuit boards from flux, solder, conformal coatings, and high temperatures. Heat resistant up to 640° F, solder mask is most often used to protect open through-holes and components during wave soldering. Solder mask can also act as a short-term adhesive to keep parts in place when you’re soldering a two-sided SMT circuit board. An alternative to masking tapes that require cutting to shape, solder mask flows easily into small spaces and doesn’t leave a residue when removed.
    Wash-Away Removal—Choose wash-away solder mask if you use a water-based cleaning process such as a batch or in-line cleaning system.
    Peel-Away Removal—Choose peel-away solder mask if you use a solvent-based cleaning process or don’t clean your circuit boards.
    15 min. Overall Dry Time—Solder mask with a 15-min. overall dry time cures more evenly than peel-away solder mask with a one-hr. overall dry time, so it can be applied in thick layers. It's also nonflammable.
    1 hr. Overall Dry Time—Peel-away solder mask with a one-hr. overall dry time produces low odors because it doesn’t contain ammonia. Wash-away solder mask with a one-hr. overall dry time is nonflammable. It's not completely water soluble, so it can’t be used in closed-loop cleaning systems.
    2 hr. Overall Dry Time—Solder mask with a two-hr. overall dry time is completely water soluble for use in closed-loop cleaning systems. It's slightly flammable.
    Cannot Be Sold To—Product regulations restrict sales to the listed jurisdictions/areas.
    Dry Time
    Container
    Size, fl. oz.
    Consistency
    Touch,
    min.
    Overall
    Max. Temp.,
    ° F
    Mil. Spec.
    For Use On
    Color
    Features
    Cannot Be Sold To
    Each
    Wash-Away Removal
    8Gel601 hr.640MIL-STD-2000Aluminum, Brass, Copper, Steel, Stainless Steel, Titanium, Gold, SilverBlue—Outside United States and Canada2533N3000000
    8Gel602 hr.640—Aluminum, Brass, Copper, Steel, Stainless Steel, Titanium, Gold, SilverRedClosed-Loop CompatibleOutside United States and Canada2533N400000
     
    Peel-Away Removal
    8Gel1515 min.640MIL-STD-2000Aluminum, Brass, Steel, Stainless Steel, Titanium, Gold, SilverWhite—Outside United States and Canada2533N200000
    8Gel601 hr.640MIL-STD-2000Aluminum, Brass, Copper, Steel, Stainless Steel, Titanium, Gold, SilverRed—Outside United States and Canada2533N100000
     

    Heavy Duty Heat-Transfer Conformal Coatings

    Image of Product. Front orientation. Conformal Coatings. Heavy Duty Heat-Transfer Conformal Coatings.
    These thermally conductive coatings keep electrical components cool by dissipating heat. Use them to bond transformers, transistors, and other heat-generating components to printed circuit boards and heat sinks. They require a gun (sold separately) to dispense.
    Dry Time
    Container
    Size, fl. oz.
    Consistency
    Touch,
    min.
    Overall,
    hr.
    Mixing
    Req.
    Dielectric Strength,
    V/mil
    Thermal Conductivity,
    W/(m⋅°C)
    Temp. Range,
    ° F
    For Use On
    Color
    Each
    Acrylic Plastic—Extra Hard
     
    Syringe
    1Paste52No7500.864-85 to 347Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Cast Iron, Iron, Silver, Plastic, Rubber, Composite, FiberglassWhite1688N12000000
     
    Guns
    Each
    Dispensing Guns for Syringes7422A41000000

    Heavy Duty Light-Activated Conformal Coatings

    Image of Product. Front orientation. Conformal Coatings. Heavy Duty Light-Activated Conformal Coatings.
    Thinner than potting compounds, these coatings flow easily into small spaces between electrical components. They require an ultraviolet curing lamp to reach full strength. Use them to secure and insulate hardware on printed circuit boards.
    Syringe—Syringe coatings require a gun (sold separately) to dispense.
    Dry Time
    Mfr.
    Mfr. Model
    No.
    Container
    Size, fl. oz.
    Consistency
    Touch,
    sec.
    Overall,
    min.
    Hardness
    Rating
    Dielectric Strength,
    V/mil
    Temp. Range,
    ° F
    Light Intensity Req.
    to Reach Full Strength
    For Use On
    Color
    Each
    Syringe
    Loctite®37514/5Thin Liquid102Extra Hard730-65 to 27010 sec. @ 100 mW/cm²Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Silver, Plastic, Composite, FiberglassYellow74545A55000000
     
    Guns
    Each
    Dispensing Guns for Syringes7422A41000000
    back to top