How Often to Reapply Ready Seal: Maintenance Guide
How Often Should You Reapply Ready Seal?
Straight answer: it depends almost entirely on whether the surface is horizontal and how much sun it gets. Everything else is a rounding error.
A fence on the north side of a yard may go years. A south-facing deck floor in full sun will need attention inside two seasons. Same product, same application, ten times the difference.
The intervals
| Surface and exposure | Plan on |
|---|---|
| Deck floor, full sun most of the day | Every 12 to 18 months |
| Deck floor, partial sun | Every 18 to 24 months |
| Deck floor, mostly shaded | Every 2 to 3 years |
| Railings and spindles | 2 to 3 years |
| Fence, both sides | 3 to 5 years |
| Siding and log homes | 3 to 5 years |
| Pergolas and arbors, top surfaces | Treat like a deck floor |
Be straight with customers about where these numbers come from. Ready Seal claims up to five years, and on vertical surfaces that is reasonable. Independent field testing on a full-sun horizontal pressure-treated pine deck measured significant color loss between 9 and 18 months, with most color gone around fourteen. Both are true. They describe different surfaces.
Maryland specifics
Our climate is harder on finishes than the averages suggest. Humid summers push mildew pressure up. Freeze-thaw cycling opens and closes wood grain repeatedly through winter. Tree cover and pollen mean more organic debris sitting on horizontal surfaces.
The practical effect: take the shorter end of every range above for a Montgomery County deck floor. Fences and siding hold to the longer end fine.
Best window to recoat is spring or early fall. Summer works, since Ready Seal has no temperature ceiling, but you will want the wood dry and that is harder in July humidity.
How to tell it is time, without guessing
- Water stops beading. Sprinkle water on the deck. If it soaks straight in, the finish is spent. This is the single most reliable indicator.
- Color has flattened. Not darkened, faded toward gray, especially in traffic lanes and the sunniest section.
- Boards look dry. A finished board has depth. A spent one looks thirsty.
- Uneven wear. Traffic lanes going first while the edges hold is normal, and it means the whole surface is close.
What you will never see is peeling, cracking, chipping, or flaking. Ready Seal does not form a film, so there is nothing to fail that way. If a deck is peeling, something other than Ready Seal is on it and it has to be stripped.
What a maintenance visit actually involves
- Wash. Deck cleaner and a rinse. No stripper, no sander.
- Dry. 48 to 72 hours, verified at 12 percent moisture content or less with a moisture meter.
- Recoat. Spray or roll straight over the previous coat.
That is the entire job. No stripping is the reason this product supports maintenance contracts and film-forming stains do not. A peeling finish turns a maintenance visit into a restoration, and restoration pricing is a different conversation with the customer every single time.
The contract math
A maintenance coat uses less product than the original. Wood that already holds Ready Seal takes stain at roughly 175 square feet per gallon, versus about 100 on weathered bare wood. That is close to half the material.
Labor drops further. No stripping, no brightening, no neutralizing, no sanding. A crew that took two days on the restoration takes half a day on the recoat.
So the recurring visit costs you a fraction of the original job and can be priced at a healthy share of it. That gap is the business. Sell the second visit at the end of the first one, while the customer is standing on a deck that looks new.
Run the numbers for a specific property with the coverage calculator and set the wood condition to maintenance coat.
Between visits
What actually extends the interval:
- Sweep leaves and debris off. Wet organic matter sitting on boards holds moisture and feeds mildew.
- Move planters and mats occasionally. Anything that traps water against wood shortens the life of the finish under it.
- Rinse pollen and dirt off in spring.
- Trim back overhanging branches where practical. More airflow and sun on a damp shaded deck is worth more than any product choice.
Ready Seal has a paraffinic base with no linseed oil and no sugars or starches, so there is nothing in it for mold and mildew to feed on. That helps, but it does not make a permanently damp shaded deck immune.
If the customer wants longer intervals
Be honest rather than overselling. On a full-sun deck floor where the customer genuinely wants three years between visits, TWP 1500 or Armstrong-Clark hold color longer, and we stock both conversations. See the full comparison.
Ready Seal is the right call when the customer values a deck that looks good every year over one that looks acceptable for three.
Buy Ready Seal in Gaithersburg, Maryland
Ready Seal deck stain and sealer is on the shelf at Sun Brite Supply of Maryland, 16620 Oakmont Ave, Gaithersburg, MD 20877. Contractor and pallet pricing available, call (301) 519-9274.
How to apply Ready Seal | Which color to use | Deck and wood cleaners