What Does Percent Solids Mean in Floor Finish?

Two finishes can sit side by side at very different prices per gallon, and the cheaper one can cost you more on the floor. The number that explains it is percent solids. It tells you how much of what is in the bottle actually stays on the floor, and it is the right way to compare finishes.

Close-up of a glossy commercial floor finish surface
Quick answerPercent solids is the share of a floor finish that remains as dry film after the water and solvent evaporate. Higher solids means more material per coat, so a high-solids finish builds faster, often in fewer coats, and can be more durable per coat. Compare finishes on cost per finished square foot, not price per gallon.

What percent solids measures

Floor finish is mostly liquid carrier that evaporates, plus the solid polymer that stays behind as the protective film. Percent solids is that second part: the proportion, by content, that remains on the floor once a coat dries. A 25 percent solids finish leaves about a quarter of its volume on the floor as film; the rest evaporates. The solids are what you are actually buying.

Typical ranges

Solids levelRoughlyImplication
Lower-solidsabout 15 to 18%Thinner build per coat, more coats needed
Standardabout 18 to 22%Common commercial range
High-solidsabout 25%+ More film per coat, builds faster

These are general ranges; always read the actual product label.

Why higher solids matters

It connects directly to how many coats a floor needs, a high-solids finish can hit the same build in fewer coats than a thin one.

Reading it on the label

Percent solids is usually listed on the product label or technical data sheet, sometimes as nonvolatile content. Use it together with the coverage rate (square feet per gallon per coat) to understand what a product actually delivers. A higher price per gallon often reflects higher solids, which is not the same as being more expensive to use.

Compare on cost per finished square foot

This is the number that matters. Price per gallon is misleading, because a cheap, low-solids finish needs more coats and more gallons to reach the same build. To compare fairly: take the price per gallon, divide by coverage per gallon to get cost per coat per square foot, then multiply by the coats needed to reach a durable build. A high-solids finish that costs more per gallon frequently costs less per finished square foot once you count the coats. That is the comparison to make before switching products.

Keep reading

Related: how many coats of wax, floor finish types, sealing vs. waxing, and cost calculator.

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Questions

What does percent solids mean in floor finish?

It is the share of the finish that stays on the floor as dry film after the liquid evaporates. Higher solids means more protective material per coat.

Is higher solids floor finish better?

Often, because it builds faster and can be more durable per coat, but the right choice depends on your maintenance method and budget. Compare on cost per finished square foot.

What is a good percent solids for floor finish?

Common commercial finishes run roughly 18 to 22 percent, with high-solids products at about 25 percent and up. Read the label for the exact figure.

Does high-solids finish mean fewer coats?

Usually yes. More film per coat means you can reach a durable build in fewer coats than with a thin, low-solids product.

How do you compare two floor finishes fairly?

On cost per finished square foot: price per gallon divided by coverage, times the number of coats needed for a durable build, not on price per gallon alone.

Is percent solids the same as gloss?

No. Solids is about how much film stays on the floor; gloss is about how shiny that film is. They are related but distinct properties.

Why is one floor finish so much more expensive than another?

Often higher solids and better polymer chemistry. A higher price per gallon can still be cheaper per finished square foot if it needs fewer coats.

Do high-solids finishes last longer?

A thicker film per coat can wear longer between services, which is part of why high-solids products are popular for high-traffic floors. Application still matters.

What Does Percent Solids Mean in Floor Finish?: quote planning details

Quote planning: This page helps facility managers, procurement teams, and floor-care providers understand the scope, facility context, and next action before a commercial floor-care request is routed. Commercial floor-care requests should capture facility type, floor type, approximate square footage, traffic level, condition, access windows, timing, photos when available, and whether a phone review, remote video walkthrough, or in-person walkthrough is useful for the scope.

This guide should support both education and conversion: define the issue clearly, explain when the topic affects strip-and-wax, scrub-and-recoat, VCT care, burnishing, polishing, sealing, or maintenance programs, and point the reader to quote, cost, facility, and provider pages where the next step belongs.

Buyer details to collect

Facility type, floor material, square footage, current condition, service needed, timing, access window, photos, traffic areas, safety concerns, and decision-maker contact details.

Quote-quality controls

Photos are optional but helpful. A remote video walkthrough is a convenience option when condition or access is hard to explain. Larger schools, hospitals, universities, municipalities, portfolios, and complex projects may still need an in-person walkthrough.

Reliable quote process expectations

Strip&Wax.com builds coverage carefully by collecting real facility requirements, provider service areas, capability details, and quote outcomes. The site focuses on accurate scope, clear expectations, and useful commercial floor-care guidance before an opportunity is routed.

Related commercial floor-care pages

Use these related pages to compare services, understand cost, plan facility-specific work, and route the right commercial floor-care opportunity.

What makes this floor-care project worth scoping

Commercial floor-care buyers are usually trying to protect a facility, prepare for traffic, improve presentation, control safety risk, or restore floors before a deadline. The best quote requests connect the floor problem to the service, floor type, facility type, schedule, and access requirements.

Project drivers

High-value requests often include thousands of square feet, multiple rooms, heavy traffic lanes, old finish buildup, school or healthcare scheduling windows, retail entrances, warehouse walkways, municipal procurement steps, or a multi-location maintenance need. The buyer should understand that price changes with condition and access, not just square footage.

Scope questions

Useful quote notes include the facility type, floor material, current condition, deadline, preferred service window, whether furniture or shelving must move, whether the building needs low-odor products, and whether photos or a remote walkthrough can show the problem better than a written description.

Next step

Use the links below to compare scrub vs strip, review VCT floor care, check industry examples, estimate pricing with the cost calculator, or request a quote.

Use these resources to narrow the request into the right service, surface, and facility type: commercial floor waxing, floor stripping and waxing, VCT maintenance, scrub-and-recoat, burnishing, school floor care, healthcare floor care, retail floor care, and industrial floor maintenance. The buyer does not need every technical term before submitting the request.

Get a free floor assessment

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