Drywall Primer / Brush, Roller or Spray / Southeast Michigan
The primer that stops joints from showing through your paint. Drywall Complete Services uses First Coat to even out the suction between board paper and joint compound — so the wall reads as one surface instead of a map of every taped seam.
Painters call it joint banding, or photographing. It happens because gypsum panel face paper and dried joint compound are not the same material — they differ in porosity and in surface texture, so they drink paint at different rates and reflect light differently.
Add direct natural light and a gloss or semi-gloss paint, and the difference stops being subtle: every seam and every fastener head reads through the finish coat. The taping wasn't wrong. The wall just wasn't equalized before it was painted.
A finished wall at 4 p.m. with sun coming down it. Switch the primer on and off.
This is the part most people get wrong. First Coat is not a sealer, and it isn't trying to be.
Lays down a film over the substrate to lock it off. That film can still sit over two surfaces that reflect light differently, which is why banding can survive a sealer coat.
Leaves no sealing film. It builds a base that evens out the absorption rate between face paper and joint compound, and carries the pigments and fillers — the ones many conventional primers lack — that level out surface texture differences too.
Minimizes joint banding and photographing so the finish coat covers as one continuous surface.
Dries to a white finish fast under normal conditions, so the paint crew isn't standing around waiting on the primer.
Gloss and semi-gloss magnify every porosity difference. This is the coat that makes those sheens safe to spec.
Goes on with a brush, a roller, an airless gun or conventional spray, so it fits tight remodels and open new construction alike.
180–200 sq. ft. per gallon at 3–5 mils wet — a cheap insurance policy against repainting a banded wall.
Supplied white and can be tinted, which helps deep or hard-to-cover topcoat colors reach full hide sooner.
First Coat is a base coat and must be overpainted once dry. It is not the finish, and unpainted primer is not a durable surface.
Going to wallpaper or vinyl wallcovering? Let the primer dry, then apply a quality wall size before the covering goes up.
The material ages naturally in storage and must be protected from freezing, moisture, free water and temperature extremes. Old stock that never got rotated can cause performance problems on the wall.
Surfaces must be dry, clean, sound and free of oil, grease and efflorescence.
Stir gently. Never thin it for brush or roller work. For spray only, water can be added in half-pint increments, up to a maximum of 1 qt. per gallon.
Watch the thinning. Overthinned material can lose adhesion, lose hide, and dry with uneven suction — which is the exact problem the primer is there to solve.
Whichever method the job calls for, it goes on as a full coverage coat, and air, product and surface temperatures stay at 55 °F (13 °C) or above through application and until the surface is dry.
Cut-ins, tight corners, patch areas and detail work around trim and fixtures.
The workhorse for occupied remodels and smaller rooms where overspray isn't welcome.
Open new construction and large ceiling planes. On a less-than-ideal surface, backrolling the sprayed coat helps it lay down.
First Coat also doubles as the carrier for a sandlike texture when you want a surface with some tooth instead of a flat plane.
The prepared surface gets a prime coat of First Coat and is left to dry. Fine perlite aggregate — USG Sheetrock® Brand Sand Finish Paint Additive or an equivalent — is then stirred in slowly at roughly 4 lbs. per 5 gal. and mixed until it's evenly dispersed. That mix is applied by brush or roller, and a sponge, whisk broom or other tool can be worked over it to push the texture further.
Painting happens after an overnight dry, or later in slow-drying conditions once the surface is confirmed dry, following the paint manufacturer's directions.
| Color | White — may be tinted |
|---|---|
| Binder | Vinyl acrylic |
| Dilution (water) | Spray application only, up to 1 qt./gal. (946 mL / 3.7 L) |
| pH | 9.0 to 9.9 |
| VOC content | 47 g/L |
| Weight solids | 54–56% |
| Volume solids | 41–43% |
| Drying time | To touch in under 30 min. at 75 °F / 50% R.H.; varies with temperature, humidity and film thickness |
| Coverage | 180–200 sq. ft./gal. (4.3–4.8 m²/L) at 3–5 mils wet; 0.7–1.2 mils dry |
| Storage | Close container after use; dry place at moderate temperatures; protect from freezing; up to 12-month shelf life; rotate stock first-in, first-out |
| Packaging | 1 gal. and 5 gal. pails |
| Cleanup | Wash equipment with warm, soapy water |
Figures shown are the manufacturer's published values (USG submittal sheet J1095, rev. 6-21). Always confirm against the current data sheet and SDS at usg.com before specification.
We install, finish and prime across Ypsilanti, Ann Arbor, Saline and the rest of Southeast Michigan — residential and commercial, new build and remodel.
Get a number on it
Fifty-plus years and a 40-person crew across Southeast Michigan. Tell us the square footage, the paint sheen and the light conditions, and we'll come back with a real scope and a real price.
(734) 368-5568
info@drywallcompleteservices.com
