Concrete Primers | McMaster-Carr

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	Color Color

	Gray		Red
	Clear		White
	Black

	Container Type Container Type


Aerosol Can	Can	Bottle

	For Use On For Use On	Show

Concrete

	For Use On For Use On	Hide

Warning: Products have one, but not necessarily all, of the selected characteristics.

	Primer Type Primer Type

General Purpose

Block Filler

Stain Blocking

	Type Type

Primer

	For Topcoat Composition For Topcoat Composition

Solvent Based

Water Based

	Spray Position Spray Position

Upright

Inverted

	Container Size Container Size

8 1/2 oz.

12 oz.

1 gal.

	Touch Dry Time Touch Dry Time

	Formulation Formulation

	Overall Dry Time Overall Dry Time

	Mixing Required Mixing Required

Yes

	Composition Composition

Solvent Based

Water Based

	Approximate Coverage @ Thickness Approximate Coverage @ Thickness

	For Use Outdoors For Use Outdoors

Yes

	Maximum Temperature Maximum Temperature

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

RoHS Compliant

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

DFARS Specialty Metals
COTS-Exempt

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

REACH Compliant

	Manufacturer Manufacturer

Loctite®

	Manufacturer Model Number Manufacturer Model Number

P591

PC 7641

	Drying Time Drying Time

15 min.

	Mix Ratio Mix Ratio

1:1

4:1

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15 Products

About Sealant Flexibility

About Paint and Protective Coatings

Use these primers on metal surfaces in enclosed occupied areas, such as hospitals, schools, and offices. They have excellent resistance to moisture and corrosion and bond well to metal to extend the life of paint and coatings. Apply with a brush, roller, or sprayer.

Container			Dry Time
Size	Type	Composition	Touch, min.	Overall, hrs.	Approx. Coverage @ Thick.	Max. Temp., °F	For Topcoat Composition	For Use On	Color		Each
1 gal.	Can	Water Based	30	2	255 sq. ft. @ 2 mil	400°	Water Based	Aluminum, Steel, Iron, Galvanized Iron, Galvanized Steel, Masonry, Concrete	Gray	0000000	0000000

Primers

Prepare metal, wood, and concrete for paint. Primers adhere to underlying surfaces to create a base layer that bonds well with paint for a long-lasting finish.

Use primer in an aerosol can for quick jobs and touch-ups.

Apply primer in a one-gallon can with a brush, roller, or sprayer. Use red primer on rusty and abrasive-blasted steel. Follow with a coat of gray primer. Use gray primer on galvanized steel and on all other surfaces.

Primers that cannot be sold to the regions listed exceed local regulatory limits on VOC (volatile organic compounds).

			Dry Time
Container Size	Composition	Formulation	Touch	Overall	Approx. Coverage @ Thick.	Max. Temp., °F	For Topcoat Composition	For Use On	Color	Cannot Be Sold To		Each
Aerosol Cans
12 oz.	Solvent Based	Alkyd	12 min.	24 hrs.	15 sq. ft. @ 1 mil	200°	Solvent Based	Steel, Iron, Masonry, Concrete, Wood	Gray	__	0000000	00000
12 oz.	Solvent Based	Alkyd	15 min.	60 min.	20 sq. ft. @ 1 mil	150°	Solvent Based	Steel, Iron, Masonry, Concrete, Wood	Gray	__	000000	00000
Cans
1 gal.	Water Based	Acrylic	2 hrs.	4 hrs.	300 sq. ft. @ 2 mil	200°	Water Based	Steel, Galvanized Iron, Galvanized Steel, Masonry, Concrete, Wood	Red	Los Angeles County, CA; Orange County, CA; Riverside County, CA; San Bernardino County, CA	0000000	00000
1 gal.	Water Based	Acrylic	2 hrs.	4 hrs.	300 sq. ft. @ 2 mil	200°	Water Based	Steel, Galvanized Iron, Galvanized Steel, Masonry, Concrete, Wood	Gray	Los Angeles County, CA; Orange County, CA; Riverside County, CA; San Bernardino County, CA	0000000	00000

Stain-Resistant Primers

Cover stains from smoke, water, and ink to prevent them from bleeding through your topcoat, extending the life of paint and coatings.

Acrylic primer can be applied directly to metal. It resists corrosion, mold, and mildew. Apply with a brush, pad, roller, or sprayer.

Shellac primer seals in odors and has the best stain-blocking ability of any of the primers we offer. It also seals knots and sap in wood. Apply with a brush, roller, or sprayer.

		Dry Time
Container Size, gal.	Composition	Touch, min.	Overall	Approx. Coverage @ Thick.	Max. Temp., °F	For Topcoat Composition	For Use On	Color		Each
Acrylic Primers
1	Water Based	30	7 days	300 sq. ft. @ 2 mil	90°	Solvent Based, Water Based	Aluminum, Brass, Bronze, Copper, Steel, Plastic, Composites, Fiberglass, Concrete, Drywall	Gray	000000	000000
Shellac Primers
1	Solvent Based	20	45 min.	250 sq. ft. @ 2 mil	200°	Solvent Based, Water Based	Aluminum, Plastic, Fiberglass, Masonry, Concrete, Drywall, Wood	White	000000	00000

Each

		Dry Time
Container Size, oz.	Composition	Touch, min.	Overall, hrs.	Approx. Coverage @ Thick.	Max. Temp., °F	For Topcoat Composition	For Use On	Color		Each
Alkyd Primers
12	Solvent Based	10	2	10 sq. ft. @ 1 mil	250°	Solvent Based, Water Based	Concrete, Drywall, Wood	White	0000000	00000

Pkg.

		Dry Time
Container Size, oz.	Composition	Touch, min.	Overall, hrs.	Approx. Coverage @ Thick.	Max. Temp., °F	For Topcoat Composition	For Use On	Color	Pkg. Qty.		Pkg.
Alkyd Primers
12	Solvent Based	10	2	10 sq. ft. @ 1 mil	250°	Solvent Based, Water Based	Concrete, Drywall, Wood	White	12	00000000	0000000

Low-Odor Primers

Use these primers in enclosed occupied areas, such as hospitals, schools, and offices. They cover stains and prepare your surface, extending the life of paint and coatings. Apply with a brush, roller, or sprayer.

Epoxy primer prepares surfaces for epoxy coatings. The size listed is the combined total of the two parts.

			Dry Time
Container Size, gal.	Composition	Formulation	Touch, min.	Overall	Approx. Coverage @ Thick.	Application Time After Mixing, hrs.	Max. Temp., °F	For Topcoat Composition	For Use On	Color		Each
1	Water Based	Epoxy	30	2 hrs.	345 sq. ft. @ 2 mil	2	250°	Water Based	Aluminum, Steel, Iron, Masonry, Concrete	White	000000	0000000

Smooth-Surface Primers

Increase paint’s ability to bond to hard, smooth surfaces, such as tile and metal.

Epoxy primer is designed for use on floors to improve the longevity of paint and coatings. This low-odor primer can be used in enclosed occupied areas. For indoor use only. The size listed is the combined total of the two parts. Apply with a brush or roller.

			Dry Time
Container Size, gal.	Composition	Formulation	Touch	Overall, days	Approx. Coverage @ Thick.	Application Time After Mixing, min.	Max. Temp., °F	For Topcoat Composition	For Use On	Color		Each
1	Water Based	Epoxy	3 hrs.	7	425 sq. ft. @ 2 mil	90	85°	Solvent Based, Water Based	Aluminum, Ceramic, Concrete	Gray	000000	0000000

Primers for Concrete Floors

These thin primers penetrate deeply into concrete floors to create a hard surface that can then be coated with any urethane or epoxy coating. Primers resist abrasion and chemicals, such as mild acids, alkalies, salt, and fuel. Apply with a roller. The size listed is the combined total of the two parts.

Mfr. Model				Dry Time
Name	No.	Container Size, gal.	Composition	Touch, hrs.	Overall, hrs.	Approx. Coverage @ Thick.	Max. Temp., °F	Application Temp. Range, °F	For Topcoat Composition	For Use On	Color		Each
Loctite® Primers
Fixmaster Epoxy	PC 7641	1	Water Based	2	6	250 sq. ft. @ 2 mil	180°	50° to 120°	Solvent Based, Water Based	Ceramic, Concrete, Stone, Wood, Plaster	Clear	0000000	0000000

Extra-Thick Primers for Concrete Floors

Also known as block filler, these primers fill cracks and smooth surface irregularities. Use them to prepare concrete floors to extend the life of paint and coatings. Apply with a brush, roller, or sprayer.

		Dry Time
Container Size, gal.	Composition	Touch, min.	Overall, hrs.	Approx. Coverage @ Thick.	Max. Temp., °F	Application Temp. Range, °F	For Topcoat Composition	For Use On	Color		Each
1	Water Based	60	4	80 sq. ft. @ 8 mil	150°	50° to 90°	Solvent Based, Water Based	Masonry, Concrete	White	0000000	000000

Primers for Drywall

Use this zero-VOC primer on drywall in enclosed occupied areas, such as hospitals, schools, and offices, to extend the life of paint. Apply with a brush, roller, or sprayer.

		Dry Time
Container Size, gal.	Composition	Touch, min.	Overall, hrs.	Approx. Coverage @ Thick.	Max. Temp., °F	For Topcoat Composition	For Use On	Color		Each
1	Water Based	30	2	640 sq. ft. @ 2 mil	200°	Water Based	Masonry, Concrete, Drywall, Wood	Gray	0000000	000000

Sealant Primers

Prepare joints and surfaces to ensure proper sealant adhesion.

Primer for use on PVC plastic and TPO plastic is often used on roof joints.

	Container
Mfr. Model No.	Size	Type	Drying Time	Color	For Use On		Each
3M Primers
P591	8.5 oz.	Bottle	15 min.	Black	Aluminum, Stainless Steel, Steel, Cast Iron, Galvanized Steel, ABS Plastic, Acrylic Plastic, Polycarbonate Plastic, Polystyrene Plastic, Polyurethane Rubber, PVC Plastic, Concrete, Glass, CPVC Plastic, PETG Plastic, PVDF Plastic, Polyimide Plastic, Fiberglass, Wood, Iron, Galvanized Iron	0000000	000000

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