Acrylic sealers are available in two major types :

- Solvent based. PermaPro Sealer SL.

- Water based. PermaPro Enviro Sealer.

They can be purchased in a medium or high gloss.
Solvent-based sealers are a good and durable choice for exterior applications. They have a strong odor to them and caution and safeguards need to be employed before they are interiors.

They are also flammable and should not be exposed to open flames.

Water based sealers are your best and safest option for interior use, and areas exposed to chemicals (example-pool chemicals) or gasoline (garages).

Solvent-based sealers are clear in color, very durable, long lasting, but are very aromatic. If used on interior floors, precautions MUST be taken to protect the applicator and to ventilate the area with fans. The applicator also should use an approved respirator. During the curing process, the solvent in the sealer is airborne and potentially explosive.

NO SMOKING. If using for interiors, open windows and exterior doors. Extinguish pilot lights, any open flames, and any other source of ignition. Provide adequate ventilation. Acrylic sealers require an ambient temperature of 15 degrees C and rising and slab temperature of at least 5 degrees C. They will look normal on a too-cold slab until it has dried, at which point it will turn to a streaky or cloudy white film. This is most likely caused by moisture under the sealer. If the slab feels very cold to your hand, seal a sample of two or three square feet. Choose a spot near an exterior wall or a doorway rather than the warmest part of the floor. Let the sample dry to the touch, from one half hour to 3 hours. Clean the area, and melt (re-emulsify) the sealer by rubbing a rag with xylene / toluene on it. This will soften the sealer and allow the moisture to evaporate before it hardens. Be very safety conscious and use eye protection and rubber gloves when using any of these products.

Water based acrylic sealers are one of your alternative for an interior application. The ones that dry to a gloss finish do the best job of showing off the depth of the vibrant colors of the acid stains. These sealers, do not have a strong smell associated with them, and therefore work very well in interior residential applications.

Exterior:

First recommendation for the application of sealers is with an airless/power sprayer.

Apply two thin coats. Let the first coat dry thoroughly before applying second coat. The time may vary according to the temperature and humidity. Wait until it is tack free and then wait an additional 15 minutes.
Apply second coat at right angle to first coat.

Second recommended type of application for sealer, is with a short nap roller.
Before first application, saturate the short nap roller with sealer to reduce possible air bubbles. If air bubbles do appear, back roll the sealer to eliminate them. Apply sealer in THIN coats using short nap roller. Apply second coat after the first has thoroughly dried, and at a right angle to first coat.
Allow 1-3 hours drying time between applications, depending on local conditions.
Re-seal the sealer container tightly, to preserve for future applications.

Allow at least 24 hours before allowing foot traffic
Allow at least 48-72 hours before allowing vehicular traffic.
For exterior applications, re-apply sealer periodically, as needed, to protect the surface and maintain the look. Typical range of re-applications varies from 2-5 years. This depends upon the concentration (% solids) of the sealer, the type of sealer used (solvent or water based), type of exposure and amount of traffic it is exposed to.

Interior:

For interior applications, we strongly recommend our PermaPro Wax that can be applied to protect the surface from the wear and tear of traffic. It is easier to re-apply a coat of liquid floor finish to maintain the surface than to re-apply a coat of sealer.

If you choose NOT to apply a floor polish to interior surfaces, and do not maintain the sealer, you will eventually wear through the sealer into the acid stain.