Bluing Paste | McMaster-Carr

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	Color Color	Show

	Blue

	Color Color	Hide

	Silver
	Gray
	White
	Black
	Blue
	Brown
	Clear
	Off-White
	Green
	Yellow
	Aluminum
	Beige
	Light Yellow
	Yellow to Green-Blue
	Amber
	Light Amber
	Light Blue
	Tan
	Red
	Teal

	Container Type Container Type

	For Use On For Use On

	Clarity Clarity

Semi-Clear

Opaque

	For Use With For Use With

	Container Size Container Size

	Maximum Temperature Maximum Temperature

Less than 250° F

250° to 499° F

500° to 999° F

	Type Type

Surface Filler

Thread Sealant

Protective Coating

	Consistency Consistency

Paste

	Thermal Conductivity Thermal Conductivity

0.808 W/m-K

0.95 W/m-K

Not Rated

	Mixing Required Mixing Required

Yes

	Cure Type Cure Type

Non-Hardening

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Minimum Temperature Minimum Temperature

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	For Maximum Thread Diameter For Maximum Thread Diameter

	Dielectric Strength Dielectric Strength

410 V/mil

678 V/mil

Not Rated

	Specifications Met Specifications Met

NSF/ANSI

CSA

	Maximum Pressure for Gases Maximum Pressure for Gases

3,000 psi

	Formulation Formulation

Acrylic

Epoxy

Silicone

	For Use Outdoors For Use Outdoors

Yes

	Overall Dry Time Overall Dry Time

24 hrs.

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13 Products

About Paint and Protective Coatings

About Sealant Flexibility

For use in processing equipment that carries large particles 1/16" in diameter and larger, these ceramic-filled epoxies rebuild and repair surfaces exposed to abrasion from particles, such as pump housings, chute linings, and hoppers. The size listed is the combined total of the two parts.

	Container
Mfr. Model No.	Net Weight, lbs.	Type	Begins to Harden, min.	Reaches Full Strength, hrs.	Consistency	Mix Ratio	Approx. Coverage @ Thick.	Max. Thick.	Temp. Range, °F	Color	Finishing Method	For Use On		Each
Loctite® Nordbak Wearing Compound
PC 9599	6	Jar, Can	10	3	Paste	2:1	310 sq. in. @ 1/4"	1/4"	-20° to 220°	Blue	Machine, Drill, Sand, Saw, Tap	Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Cast Iron, Titanium	000000	0000000

Fine-Particle Abrasion-Resistant Surface Fillers for Metal

For use in processing equipment that carries particles smaller than 1/16" in diameter, these ceramic-filled epoxies rebuild and repair surfaces exposed to abrasion from particles, such as dust collectors, fan blades, and fan housings. The size listed is the combined total of the two parts.

	Container
Mfr. Model No.	Net Weight, lbs.	Type	Begins to Harden, min.	Reaches Full Strength, hrs.	Consistency	Mix Ratio	Approx. Coverage @ Thick.	Max. Thick.	For Use Outdoors	Temp. Range, °F	Color	Finishing Method	For Use On		Each
Loctite® Nordbak Pneu-Wear
PC 7455	6	Can	10	3	Paste	2:1	310 sq. in. @ 1/4"	1/4"	Yes	-20° to 220°	Blue	Machine, Drill, Sand, Saw, Tap	Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Cast Iron, Titanium	0000000	0000000

Non-Hardening Thread Sealants with PTFE

PTFE provides a slippery surface that keeps threads from binding. These sealants never fully harden, remaining pliable enough to self-heal and stop leaks before they start, so they’re often used in high-vibration applications that could cause standard thread sealants to fail. Since they have low locking strength, these sealants can be adjusted without tools.

To adhere to safety standards for drinking water systems, use sealants that meet NSF/ANSI 61.

VOC (volatile organic compounds) regulations restrict sales of sealants that cannot be sold to the listed jurisdictions/areas.

Container		Max. Pressure, psi
Size, fl. oz.	Type	For Fluids	For Gases	Temp. Range, °F	For Max. Thread Dia.	Consistency	Specifications Met	Color	Cannot Be Sold To		Each
Low Locking Strength
Sealants
0.125	Tube	10,000	3,000	-100° to 600°	2"	Paste	CSA Certified, CSA-US Certified, UL Classified	Blue	CO, CT, DC, DE, IL, IN, MA, MD, ME, MI, NH, NJ, Northern VA, NY, OH, PA, RI, UT	00000000	00000
2	Tube	10,000	3,000	-100° to 600°	3"	Paste	CSA Certified, CSA-US Certified, UL Classified	Blue	CO, CT, DC, DE, IL, IN, MA, MD, ME, MI, NH, NJ, Northern VA, NY, OH, PA, RI, UT	0000000	0000
4	Brush-Top Can	10,000	3,000	-100° to 600°	3"	Paste	CSA Certified, CSA-US Certified, UL Classified	Blue	CO, CT, DC, DE, IL, IN, MA, MD, ME, MI, NH, NJ, Northern VA, NY, OH, PA, RI, UT	0000000	00000
8	Brush-Top Can	10,000	3,000	-100° to 600°	3"	Paste	CSA Certified, CSA-US Certified, UL Classified	Blue	CO, CT, DC, DE, IL, IN, MA, MD, ME, MI, NH, NJ, Northern VA, NY, OH, PA, RI, UT	0000000	00000
16	Brush-Top Can	10,000	3,000	-100° to 600°	2"	Paste	CSA Certified, CSA-US Certified, UL Classified	Blue	CO, CT, DC, DE, IL, IN, MA, MD, ME, MI, NH, NJ, Northern VA, NY, OH, PA, RI, UT	00000000	00000
32	Brush-Top Can	10,000	3,000	-100° to 600°	2"	Paste	CSA Certified, CSA-US Certified, UL Classified	Blue	__	00000000	00000

Non-Hardening Thread Sealants

Often used in high-vibration applications that could cause standard thread sealants to fail, these never fully harden and remain pliable enough to self-heal and stop leaks before they start. They have low locking strength, so they can be adjusted without tools.

To adhere to safety standards for drinking water systems, use sealants that meet NSF/ANSI 61.

Sealants that cannot be sold to the listed regions are restricted due to local VOC (Volatile Organic Compounds) regulations.

Container		Max. Pressure, psi
Size	Type	For Fluids	For Gases	Temp. Range, °F	Consistency	Specifications Met	Color	Cannot Be Sold To		Each
Low Locking Strength
Sealants
8 fl. oz.	Brush-Top Can	6,000	3,000	20° to 140°	Paste	NSF/ANSI 61	Blue	CO, CT, DC, DE, IL, IN, MA, MD, ME, MI, NH, NJ, NY, OH, PA, RI, UT, Northern VA	000000	000000

Ready-to-Use Silicone Potting Compounds

Cartridge

No mixing required --these potting compounds come ready to apply. Use them to encase electronic assemblies for protection from dust, moisture, mechanical shock, and vibration. Softer and more flexible than epoxies and urethanes with the widest temperature range, silicone potting compounds are the best choice for high-temperature applications and electronics exposed to thermal cycling. They have good moisture resistance but poor chemical and abrasion resistance. Silicones provide excellent electrical insulation. They're also known as RTV (room-temperature vulcanizing).

	Container			Dry Time
Mfr. Model No.	Size, fl. oz.	Type	Consistency	Touch	Overall, hrs.	Dielectric Strength, V/mil	Thermal Conductivity, W/m-K	Temp. Range, °F	For Use On	Clarity	Color		Each
Dow Corning Compounds—Soft
839	10.3	Cartridge	Paste	35 min.	24	Not Rated	Not Rated	-45° to 390°	Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Plastic, Rubber, Composites, Fiberglass, Ceramic, Glass	Semi-Clear	Blue	0000000	000000

Heat-Transfer Potting Compounds

Formulated to draw heat away from sensitive electronic components, these potting compounds have higher thermal conductivity than standard potting compounds. Use them to encase electronic assemblies for protection from dust, chemicals, moisture, mechanical shock, and vibration. Rigid and wear resistant, epoxies are the strongest of the potting compounds. They have excellent chemical and moisture resistance, withstand a wide range of temperatures, and provide excellent electrical insulation.

One-Time-Use Packet Compounds—Extra Hard

		Dry Time
Container Net Weight, oz.	Consistency	Touch, min.	Overall, hrs.	Dielectric Strength, V/mil	Thermal Conductivity, W/m-K	Temp. Range, °F	Heating Requirements to Reach Full Strength	For Use On	Color		Each
1.4	Paste	90	24	410	0.95	-90° to 230°	2 hrs. @ 140° F	Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Silver, Titanium, Plastic, Composites, Fiberglass	Blue	00000000	000000

Heavy Duty Precise-Gap Heat-Transfer Coatings for Electronics

To effectively dissipate heat in the tightest spaces, this coating contains a filler that acts like a shim to produce a consistent 0.005" to 0.006" gap between components. Use it to bond transformers, transistors, and other heat-generating components to printed circuit boards and heat sinks.

		Dry Time
Container Size, fl. oz.	Consistency	Touch, min.	Overall, hrs.	Dielectric Strength, V/mil	Thermal Conductivity, W/m-K	Temp. Range, °F	For Use On	Color		Each
0.8	Paste	5	24	678	0.808	-65° to 300°	Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Cast Iron, Iron, Silver, Plastic, Rubber, Composites, Fiberglass	Blue	0000000	000000

High Spot Blue Marking Paste

Identify high spots, interference points, and improper fit on bearings, gears, and valves. Apply this blue paste, also known as engineers’ blue, to parts or components and assemble them into working position. Any improper fit will show up as a blue streak. Paste cannot be sold to Canada because it exceeds local regulatory limits on VOCs (volatile organic compounds). Remove paste with Marking Fluid Remover.

Container Size	Fluid Type	Clarity	Container Type	Color	Cannot Be Sold To		Each
0.55 fl. oz.	Paste	Opaque	Tube	Blue	Canada	0000000	000000

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