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FAQ – Polybind Sealers

Can the re sealer be used over a competitors product?

Yes it can, if the competitors product is solvent based. Alliance resealer can be used over any Polybind sealers, except the Natural Look. It is always recommended to test it first in an inconspicuous place, to be sure that there are no issues. Note: A solvent sealer can be used on top of another solvent or water based sealer. However, a water-based sealer can never be used over a solvent based. If doing a solvent based resealer over one of the Polybind eco sealers, the existing Hybrid sealer must be intact no bare spots otherwise there will be a difference in the finished look. For resealing we recommend our resealer again always do a small test area first.

Can the Natural Look Sealer be used indoors?

Yes it can. Our Natural Look water-based sealers can be used indoors. It should only be used on concrete or natural stone – not for use on ceramic or porcelain tiles. We do not recommend our solvent based sealers for in door use.

What is the life expectancy of the sealers? Water based / Solvent based?

This depends on many factors, but normally sealers last 2 to 5 years – except for our Natural Look product – it is guaranteed 10 years.
• Natural Look –is the longest lasting – life expectancy 10 years.
• Satin Look and Wet Look are Solvent normally the finish lasts – 3 to 5 years.
• Eco Seal water based normally lasts the finish lasts 2-3 years.
• The environment dictates the amount of time that the finish lasts.
• Please note: There is no guarantee, after the containers have been opened and the sealer has been stored.

What makes the Natural Look Sealer your best sealer?

We use Fluorochemical products in the Natural look. It is a costlier product but unlike Siloxanes that breakdown with UV after 1 year our Polybind Natural Look is a Fluorochemical product and will last 10 years.

What is the shelf life of the sealers & cleaners?

12 – 18 months. If stored in a cool area out of the direct sun.

Is pressure washing the area before sealing – good enough?

No, we always recommend using our Flexlock efflorescence cleaner, this preps the surface assuring a good bond for the sealer. If the area is only pressure washed you are likely to have visible marks and possibly other problems such as the sealer flaking or pealing.

Will the cleaners remove the sealer?

It depends on which cleaner and which sealer, always read the instructions and always test in a small inconspicuous area first, to be sure before continuing. There is a potential for damaging the sealer, in particular when using the rust remover or the paint and tar remover, it will dissolve the sealer.

The cleaner is not removing my stain, how many times can I go over the same spot?

First make sure you use the appropriate cleaner for the stain. If the stain has been there for some time or has deeply penetrated the surface – several applications may be required – Not all stains can be fully removed. Sometimes it may be necessary to remove and relocate the paver.

Can the wet look sealer be used on stamped concrete?

The answer is not clear-cut – stamped concrete is a specialized process and usually the contractors use a solvent based sealer, our recommendation would be to do a test area first using our Resealer.

Can I seal Wet cast pavers?

Yes, and the ultimate products would be; Ultra Series sealant for Wet cast concrete products to enhance color or always Ultra Series Natural finish with zero sheen that will not enhance the color but protect your surfaces from oil, grease and other stains.

How many coats of sealer should be used?

We only recommend one coat.

What is the difference between the solvent-based and water-based sealers – and which one lasts longer?

Generally solvent-based sealers tend to be harder and more durable, in terms of glossy finishes, meaning that the shine will generally last longer.
Note: Our Natural Look sealer, which is water based, has no shine, but actually protects the longest 10 years. This is a new and unique non-film forming formula.

Can I use the sealers on walls?

We only recommend a highly breathable sealer on walls, like our Natural Look sealer. Walls are more porous (less dense) than pavers; hence you want a breathable sealer as opposed to a film forming.

What can I use to remove the milky spots (haze)?

If it resembles spilt milk, this is over application of sealer. The remedy depends on if the sealer is solvent or water based. For Solvent based use Gatorene, always do a small test area. Water based sealers do not respond well to cleaning with a solvent and will require a number of applications of solvent and vigorous scrubbing with a stiff nylon brush or a soft brass brush – again always test your procedure in a small inconspicuous spot. Bad areas may even require removing (stripping) the sealer, if so use Gator sealer Stripper.

What is causing the milky blotchy spots in some areas after using a sealer?

There are several possibilities that can cause whiteness-
• Trapped moisture.
• Too thick a layer of sealer, or multiple layers of sealer.
• Surface was too hot when applied.
• Surface was not clean at time of sealing.
• Or a combination of the above.

How often can a sealer be applied?

1) The Polybind Natural Look sealer is very long lasting guaranteed for 10 years.

2) Normally a sealer is reapplied in 2 to 5 years, depending if it has visibly worn. When reapplying a sealer, it is recommended to use Polybind resealer, particularly for an existing solvent-based sealer. Polybind resealer can be used over Polybind solvent based or Polybind water-based sealers, provided the existing sealer surface does not have bare spots, or is not flaking. However, if doing so the project now becomes a solvent sealed job. Always clean the surface with Polybind Efflorescence cleaner prior sealing (or resealing) this ensures a clean surface and a good bond for the sealer. Never apply a Water-based sealer over a solvent-based sealer. If resealing a job previously done with Polybind water-based sealers, if there is no apparent finish left the area can be cleaned with Polybind efflorescence Cleaner allowed to dry and reapply the desired finish Polybind water-based sealer.

Will the sealer affect the color of the paver / stone?

The Natural look sealer and Flexlock Eco Zero gloss sealant will intensify color by approximately 5%.

The Flexlock Eco Semi Gloss Sealant and Eco Maxi Gloss Sealant will not affect the color, but will add a clear gloss.

The Satin-look Flexlock sealer: will accentuate and intensify the colors, add a little gloss.

The Wet look Flexlock sealant: will accentuate and intensify colors, higher gloss.

How long should you have to wait before walking or driving on it?

We recommend waiting 24 hours.

Can a sealer be applied immediately after applying the sand?

1) Wait a minimum of 48 hours for the polymeric sand to dry and harden.

2) Always use Flexlock efflorescence cleaner after the Flexlock polymeric sand is dry and before sealing.

3) Allow pavers to thoroughly dry after cleaning before sealing.

Note: Pavers and stone surfaces must be cool to the touch when the sealer is applied (between 60℉ (16℃) and 85℉(30℃)).

Why is there a white haze on certain sections of the sealed surface?

It is important that the paver surface is dry before sealing. There can be sections that are still humid and these sections can become hazed.

Why is my sealed surface milky or blotchy?

There is improper adhesion from the paver surface in regards to the sealer applied. A re-sealer can adjust this with technical instructions.

Why wait 1 year for sealant?

We wait 1 year because the efflorescence bleeding process is unpredictable. Before sealing any surface one must ensure that there is no efflorescence in the pavers.

Will the sealer affect the sand or dust?

No, the sealer won’t affect the sand or dust.

Is there a specific sealer I should use for natural stones vs. concrete or clay?

Yes, since all stone or concrete are not created equal, not all sealer is applicable for all. Please refer to the comparative chart to establish the proper sealer used for your application.

Make sure to change the chart on Flexlock website with Flexlock sealer product Currently Alliance.

https://www.flex-lock.com/products/signature-series/sealer-comparison-chart/

Will a sealer protect the pavers?

Yes, sealer renders the surface impermeable.

What is the difference between sealer and re-sealer?

Sealer is the initial application (first time sealing)

Resealer is applied when surface is already sealed.

What is re-sealer and when should it be used?

It is used on the 3rd year.
It is also used when one wants to refurbish the sealed surface without changing its aesthetic finish within a 3 year period

Should I re-apply sealer yearly?

No, it is recommended every 2-3 years.

Are there different procedures for new pavers vs. old pavers?

Same procedures.

Can the sealer be removed?

Yes, with a special product called the Gator Sealer Stripper.

How long after it has rained should I wait to seal?

48 hours of dry weather.

Will it affect the sealer if it rains within a few hours after it is applied?

Yes, the rain will hinder proper adhesion.

How long do I have to wait before walking or driving on it?

You should wait 24 hours.

Is there an optimum temperature?

For solvent-based sealer: 16℃ -29℃ / 60℃ – 85℃.
For water-based sealer. 5℃ -29℃ / 40℃ – 85℃.