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Refinishing a Heart Pine Floor That Lost Its Amber Color — Roswell, GA

Classy Flooring ATL refinished approximately 1,250 square feet of heart pine flooring in a Roswell, Georgia condominium in November 2025, covering two bedrooms, the living room, the kitchen, and the entry hallway. The floor had been refinished shortly before and came back pale, without the deep amber tone it had carried before that work, and the homeowner wanted that ambered character back. Color was rebuilt through a dewaxed shellac wash coat and a custom DuraSeal Quick Coat blend of Nutmeg and Chestnut, selected by the homeowner from six samples laid on the floor, then held under one coat of LOBA EasyPrime and two coats of LOBA 2K Duo in satin.

Project Overview

Three things defined this project: sanding the floor back to raw wood, flattening a surface left uneven by the previous refinish, and rebuilding the color the floor had carried before.

The reference for that color was still on the floor. Pine beneath the refrigerator had never been exposed to light and had not been touched by the previous refinish, so it held the original amber. The homeowner could select against her own wood, under her own light.

This Roswell project is one of Classy Flooring ATL’s documented hardwood refinishing projects — color restoration on old pine, pre-stain preparation, and surface correction. See the full range of our work on our Our Work page.

Project type: Hardwood floor refinishing

Location: Condominium, Roswell, Georgia

Scope: Approximately 1,250 square feet — two bedrooms, living room, kitchen, entry hallway

Crew: Two, Classy Flooring ATL in-house

Duration: Four working days

Year: 2025

Starting Condition

Color. The floor carried a waterborne finish and read pale, with no amber in it.

Surface. The previous refinish had left the floor sanded unevenly. Photographed in raking light — light crossing the floor at a low angle, which exaggerates any variation in the surface — reflections across the boards scattered and broke along the run.

Board variation. Several boards read lighter and flatter than the surrounding material, visible under the old finish and again once the floor came back to raw wood.

Heart pine flooring in a pale waterborne finish before refinishing, replacement boards reading lighter than the surrounding field, Roswell, Georgia
The same room before the work. The floor carried a waterborne finish with no amber tone, and several replacement boards sat visibly lighter and flatter than the boards around them.
Heart pine flooring photographed in raking light before refinishing, uneven sanding from a previous refinish visible along the board run, Roswell, Georgia
The floor shot low into the light before the work. The previous refinish had left the surface sanded unevenly, and raking light across the boards shows the variation a straight-on photograph does not.
Heart pine floor before refinishing at the sliding door — Roswell, GA
The floor at the sliding door before the work, carrying a waterborne finish with no amber in it. Several boards read lighter than the field around them.
Close view of heart pine flooring under a pale waterborne finish before refinishing, patched boards visible along a brick wall, Roswell, Georgia
The boards at close range before the work. The pine reads flat and pale under the existing waterborne finish, and the patched sections sit lighter than the boards around them.

Why Does a Pine Floor Lose Its Amber Color After Refinishing?

Because most of that amber sits in the finish, and sanding takes the finish off. What goes back on determines whether the amber returns.

Two things build the tone on an old pine floor. An oil-based finish ambers as it ages, and that color sits on top of the wood. The wood darkens too, and in heart pine that age and sun color runs deep — NWFA’s species guide notes it normally can’t be sanded out. Sanding removes the ambered finish, so the floor comes back much paler than it was, even with the wood’s own color still in it.

What happens next depends on the specific products chosen. Some clear finishes are formulated to stay clear and hold the wood close to its freshly sanded appearance. Others are made to amber, including waterborne polyurethanes built to give the warm look of an oil-based finish. A clear, non-ambering finish over raw pine produces a pale floor, and on a light floor or a cool-toned stain that is exactly the intended result.

This floor came back pale. The homeowner wanted the warmth it had before, so the color had to be put back deliberately.

Color stays recoverable. The amber that was lost sat in the finish, so a floor sanded to raw wood can go in any direction the species allows, including back toward the amber it carried before.

How This Project Was Executed

  1. Evaluated the floor, the surface condition, and the existing finish
  2. Moved the refrigerator and identified the unexposed original color beneath it as the reference
  3. Opened the floor at 40 grit, then 60 and 80 with the belt machine; edger at the perimeter; corners scraped by hand
  4. Took the finishing passes at 100 and 120 grit with the FG Floortec Discus planetary sander, flattening the surface across the full field
  5. Laid six stain samples directly on the sanded floor in bands separated by bare pine
  6. Presented the samples to the homeowner alongside the original color preserved under the refrigerator
  7. Applied a dewaxed shellac wash coat — Zinsser SealCoat thinned six parts denatured alcohol to one part sealer
  8. Stained in DuraSeal Quick Coat, custom blend of two parts Nutmeg to one part Chestnut
  9. Applied one coat of LOBA EasyPrime sealer
  10. Applied two coats of LOBA 2K Duo in satin

Finding the Color the Floor Used to Carry

Rebuilding a floor’s warmth starts with knowing what that warmth actually looked like. Household lighting and camera processing both shift color, so a photograph gives a direction. A stain chart shows a color on a different piece of wood.

This floor offered something better. The refrigerator had stood in one position for years, shielding the pine underneath from light and from the previous refinish. Moving it exposed the floor’s earlier appearance intact — aged wood under its old finish, preserved exactly as the rest of the floor had looked before it was sanded.

That put the floor as it was directly beside the floor as it had become, in the same wood and the same room.

Amber heart pine flooring preserved beneath a refrigerator meeting the pale exposed floor beyond it, showing the original colour of the floor, Roswell, Georgia
The refrigerator pulled out. The pine beneath it was never exposed and still carried the original ambered color, meeting the pale exposed floor at the edge of the appliance footprint.
Deep golden-amber heart pine flooring preserved beneath a refrigerator, showing the original colour of the floor, Roswell, Georgia
The pine in the appliance footprint at close range. Shielded from light and from the previous refinish, these boards held the deep amber the floor had developed under its original oil finish.

Sanding: Correcting an Uneven Surface

Sanding carried two jobs on this floor. Remove the existing finish, and flatten the surface.

The belt machine cut at 40, 60, and 80 grit, with an edger at the perimeter and hand scraping in the corners. Finishing passes went to the FG Floortec Discus planetary sander at 100 and 120 grit.

Surface correction builds across the whole sequence. The belt passes remove material and take out the bulk of the variation; the planetary passes then work across the board direction rather than along it, refining the surface and reducing the directional marks left by the earlier cuts.

The 120-grit finish also prepares the surface for stain, leaving the pine open enough to take color. Grit alone doesn’t make pine absorb evenly — NWFA’s species guide notes that pine accepts stain unevenly by nature — which is why the wash coat described below was applied before the stain.

All sanding was dust-contained, with the machines running hose-connected to a cyclone separator over a collection drum, capturing dust at the machine.

Heart pine floor sanded to bare wood during refinishing, grain and knots open with no finish remaining, Roswell, Georgia
The floor after sanding, with the previous finish fully removed. At this stage the pine is pale and open, and the density difference between boards is visible before any color goes on.
Classy Flooring ATL crew member running a hose-connected planetary sander across a sanded heart pine floor, Roswell, Georgia
The planetary sander on the finishing passes. Its multiple heads rotate independently of the machine's own rotation, which flattens the surface without leaving directional marks.
FG Floortec Discus planetary sander standing on a sanded heart pine floor at a doorway, Roswell, Georgia
The FG Floortec Discus at the doorway between rooms. The planetary head flattens the surface across the full width of the floor rather than following the board direction.
Cyclone dust separator and collection drum connected by hose to sanding equipment on a heart pine floor, Roswell, Georgia
The dust extraction running on site. The cyclone separates sanding dust into the drum ahead of the vacuum, and the machines stay hose-connected throughout.

Why Does Pine Stain Blotchy?

Because pine carries soft earlywood and dense latewood in the same board. Stain penetrates the soft bands more deeply than the dense ones, so the finished color maps the density of the wood; NWFA’s species guide treats this uneven stain acceptance as a property of pine, not a defect. On this floor, a wash coat of dewaxed shellac was applied before the stain: Zinsser SealCoat thinned with denatured alcohol at six parts alcohol to one part sealer.

Zinsser publishes SealCoat as a pre-stain conditioner for softwoods such as pine, thinned equal parts by volume with denatured alcohol. The six-to-one cut used here is Classy Flooring ATL’s working dilution for this job, considerably lighter than the published ratio.

The reasoning behind that lighter cut is our own, from work on pine floors: a wash coat this dilute partially evens out the porosity of the earlywood while staying well below the point of building a film, so the stain that follows still penetrates and reads as color. A heavier cut sits closer to sealing the surface than to conditioning it.

Dewaxed shellac also carries a waterborne finish over the top cleanly. Wax in the shellac would interfere with the bond, which is why the dewaxed product is specified.

Sampling

Six stain samples went directly onto the sanded floor in bands, each separated by a strip of bare pine so every color could be read against raw wood.

Sampling on the floor itself gives an old pine floor its own answer. The samples sit in the room’s light, on the actual wood, at the grain and density of that specific floor — and in this house, in the same rooms as the original amber preserved under the refrigerator.

Color varies board to board within each sample. Old pine does this, because individual boards carry different density and grain, and that variation carries through into the finished floor as part of its character.

The homeowner selected from the six. She chose the warm ambered direction the floor had carried, with the color under the refrigerator serving as the reference for that direction.

Six DuraSeal stain samples laid in bands across a sanded heart pine floor with stain cans alongside, Roswell, Georgia
Six stain samples laid directly on the sanded floor, each band separated by bare pine so every color could be read against raw wood. Color varies board to board within each sample, which is characteristic of old pine.

The Stain

DuraSeal Quick Coat, custom blend — two parts Nutmeg to one part Chestnut.

DuraSeal Quick Coat is a semi-transparent oil-and-resin penetrating stain. DuraSeal publishes a minimum dry time of two hours before topcoating, based on 77°F and 50% relative humidity.

Blending two colors opened the range needed to land the tone the homeowner had selected. The blend leans orange-brown, the direction that brings heart pine back toward the patina of an old floor.

The Finish System — Loba EasyPrime and 2K Duo

The clear finish build was one coat of LOBA EasyPrime followed by two coats of LOBA 2K Duo in satin.

Sealer — LOBA EasyPrime, one coat. A waterborne polyurethane-acrylate sealer that LOBA lists as reducing side bonding and the white-line effect. LOBA publishes roughly one hour of drying by roller and a requirement to recoat with a LOBA finish within 24 hours, and its procedure goes from the dried sealer straight to the finish, with no sanding in between.

Finish — LOBA 2K Duo, satin, two coats. A two-component waterborne polyurethane, catalyzed at LOBA’s published 10:1 base-to-hardener ratio, with a stated two-to-three-hour minimum recoat window. LOBA lists it as non-yellowing and calls for adequate ventilation through every phase of coating and drying. Satin sheen throughout.

The color on this floor lives in the stain, where the homeowner selected and approved it on her own wood. A clear finish over the top holds that color where it was set.

Waterborne finish being rolled across a stained heart pine floor, wet coat visible against the drier area, Roswell, Georgia
A finish coat being applied over the stained heart pine. The wet film reads lighter and more reflective than the area already coated.
Refinished heart pine floor photographed in raking light, reflections running unbroken along the boards showing a flat surface, Roswell, Georgia
The finished floor shot low into the light, the same angle used to document the starting condition. The reflections run unbroken along the boards where they previously scattered across the uneven surface.

The Result

The finished floor is approximately 1,250 square feet of heart pine carrying the warm ambered tone the homeowner selected, with grain, knots, and old nail holes reading through the color.

The surface is flat. Photographed in the same raking light used to document the starting condition, reflections now run unbroken along the boards.

Client Review from This Project
★★★★★ 5-star review — Source: Google Business Profile

“Claudiu Toma and the team at Classy Flooring ATL were absolutely brilliant! They took care of a custom refinish of 100 year old heart pine flooring in Roswell for me. There was nothing easy about this job. They implemented a dustless refinishing process, which included hepa vacs, to ensure that everything stayed clean throughout the process. They took their time to ensure a perfect, quality outcome, communication was second to none and their customer service was superior. I will continue to use Claudiu and the team from Classy Flooring ATL in the future. Job well done!”

— Jason Finck

Refinished heart pine floor with window light reflected across the boards, the reflection holding its shape on a flat surface, Roswell, Georgia
The finished heart pine with window light reflected across the boards. The reflection holds its shape along the run, which is what a flat surface does under directional light.
Refinished heart pine floor running past a doorway with daylight laid evenly across the boards, Roswell, Georgia
Daylight across the finished boards near the doorway. The lit strip holds an even edge along the run, which is what a flat surface does under directional light.
Refinished heart pine flooring in a warm amber tone against a pale gray-blue wall and open doorway, Roswell, Georgia, Classy Flooring ATL
The same amber tone carried through to the adjoining room, with the grain and knot figure of the heart pine reading clearly under the finish.
Wide-plank heart pine floor refinished to a warm amber tone, brick interior walls and black-framed windows, Roswell, Georgia
The finished heart pine, warm and ambered through the full run, with the patched boards carrying the color evenly alongside the original stock.

Ongoing Maintenance

The finish is LOBA 2K Duo, a two-component waterborne polyurethane. NWFA directs that a site-finished floor is cleaned only with cleaners the finish manufacturer recommends, so the cleaner comes from LOBA’s recommendations for its finishes.

  • Sweep, dust-mop or vacuum regularly — on a hard-floor setting with the beater bar off — to remove grit that wears the surface.
  • After the five-day cure, clean with a microfiber mop only slightly dampened and well wrung out, using a cleaner LOBA recommends for its finishes. A traditional mop and bucket and steam cleaners stay off wood floors, per NWFA.
  • Place felt protectors under furniture legs and breathable rugs at entry points.
  • Hold the house at 30–50% relative humidity and 60–80°F year-round — NWFA’s range when the flooring manufacturer doesn’t specify one — to limit seasonal movement.

LOBA’s data sheet puts full cure at five days and says not to cover the floor, put rugs back, or clean it with a damp mop before then. It gives no walk-on time; NWFA’s general guidance is foot traffic in clean socks after 24 to 48 hours. Rugs and furniture go back once the five-day cure has passed, with felt pads under the furniture.

Project Specifications

Species: Heart pine, existing — wide plank

Total area: Approximately 1,250 sq ft — two bedrooms, living room, kitchen, entry hallway

Building type: Condominium

Starting finish: Waterborne

Starting surface condition: Sanded unevenly during a previous refinish

Sanding sequence: 40, 60, 80 grit; then 100 and 120 planetary

Planetary sander: FG Floortec Discus

Dust control: Hose-connected cyclone separator and collection drum

Pre-stain treatment: Dewaxed shellac wash coat — 6 parts denatured alcohol to 1 part Zinsser SealCoat

Stain samples: Six, applied directly to the sanded floor

Stain: DuraSeal Quick Coat — 2 parts Nutmeg to 1 part Chestnut

Sealer: LOBA EasyPrime, one coat

Finish: LOBA 2K Duo, satin, two coats, catalyzed 10:1

Sheen: Satin

Full cure: 5 days per LOBA’s data sheet

Crew: Two, Classy Flooring ATL in-house

Duration: Four working days

Project type: Refinishing

Location: Roswell, GA

Completed: November 2025

Completed by: Classy Flooring ATL

Frequently Asked Questions

Is heart pine good for flooring?

Yes. Heart pine — the dense, resin-rich heartwood of longleaf pine — holds up to everyday traffic, and an old heart pine floor can be sanded and refinished again as long as enough wood remains above the tongue. NWFA’s species guide lists heart pine at 1,225 lbf on the Janka hardness scale, close to northern red oak at 1,290 and below white oak at 1,360, so it is slightly softer than oak. Its resin also clogs sandpaper and can extend finish dry times, which is why heart pine is sanded and finished differently from oak. This Roswell floor is wide-plank heart pine that had been refinished shortly before; it was sanded back to bare wood again, flattened, stained, and finished.

What is the best stain color for pine floors?

The one chosen on the floor itself. Pine’s density varies from band to band and from board to board, so the same stain reads differently on every floor, and a color picked from a chart rarely lands where it was expected. NWFA’s sand-and-finish guidelines call for testing stain for color before staining the whole floor, and DuraSeal’s directions for Quick Coat call for a test area first. On this floor six stain samples were applied directly to the sanded heart pine in bands separated by bare wood, beside the original amber still preserved under the refrigerator. The homeowner chose a custom blend of DuraSeal Quick Coat, two parts Nutmeg to one part Chestnut — a warm orange-brown that brought the floor back toward the aged amber it had carried.

How to get pine to take stain evenly?

Treat the wood before the stain. Pine carries soft earlywood and dense latewood in the same board, and NWFA’s species guide treats its uneven stain acceptance as a property of the species, not a defect. A pre-stain wash coat of dewaxed shellac partially seals the porous earlywood so the stain absorbs at a more even rate. Zinsser publishes its SealCoat dewaxed shellac as a pre-stain conditioner for softwoods such as pine, thinned one to one with denatured alcohol. On this floor the cut was much lighter — six parts denatured alcohol to one part SealCoat — which regulates the stain while leaving the wood open to take color. Even with a wash coat, old pine keeps some variation from board to board, and it reads as the floor’s character.

Is water or oil based stain better for pine?

On our pine floors, oil-based. We use DuraSeal Quick Coat, a semi-transparent oil-and-resin penetrating stain, under a waterborne LOBA or Bona finish. NWFA’s sand-and-finish guidelines note that waterborne stains raise the grain, and that the stain must be dry and the wood back to its starting moisture content before sealing; on soft pine, raised grain adds one more variable to a surface that already takes color unevenly. DuraSeal publishes a minimum dry time of two hours for Quick Coat before topcoating, at 77°F and 50% relative humidity, and NWFA adds that some species need longer than the manufacturer states. On this floor Quick Coat was applied over the shellac wash coat and under one coat of LOBA EasyPrime and two coats of LOBA 2K Duo in satin.

What grit sandpaper before staining pine?

Finish the sanding at a fine grit, without skipping grits on the way. NWFA’s sand-and-finish guidelines call for the final sanding sequence at fine grit or higher — 80 to 100 is fine, 120 and up is extra fine — skipping no more than one grit, and none within the fine and extra-fine range. Heart pine’s resin clogs the paper, so abrasive is changed more often than on oak. On this floor the belt machine cut at 40, 60, and 80 grit, the edger worked the perimeter, and the FG Floortec Discus planetary sander took the finishing passes at 100 and 120 grit — the surface that took the stain.

How do I clean my pine floors?

Dry first, damp second, and with the cleaner the finish manufacturer recommends. NWFA’s 2025 guidelines call for daily sweeping or dust-mopping, vacuuming on a hard-floor setting with the beater bar off, and damp mopping with a mop only slightly moistened and well wrung out; a traditional mop and bucket, steam cleaners, oil soaps on film finishes, and vinegar are on its list of things not to use. On a site-finished floor, the cleaner is the one the finish manufacturer recommends. This floor carries LOBA 2K Duo, and LOBA’s data sheet says not to clean it with a damp mop before the five-day cure; after that, it follows the routine above. Pine is softer than oak, so walk-off mats at the doors and felt pads under furniture do more of the work of keeping it unmarked.

Related Work

For hardwood floor refinishing and restoration using professional finish systems, including color work and surface correction, see our Hardwood Floor Refinishing & Restoration service page. For a project matching a refinished floor to an existing floor of a different species, see our Hardwood Floor Color Matching project in Dunwoody. For a reclaimed heart pine restoration with wide gap filling, see our Reclaimed Heart Pine Restoration in Big Canoe.

If you have a pine or heart pine floor that came back the wrong color after refinishing, contact Classy Flooring ATL to have the floor evaluated. Classy Flooring ATL serves homeowners and builders in Atlanta, Buckhead, Sandy Springs, Brookhaven, Dunwoody, Roswell, Alpharetta, Johns Creek, Milton, and Braselton.