Highly breathable mineral silicate/acrylic hybrid coating for recoating elastomeric and silicone-based paints. Natural appearance, durable coating to preserve new concretes structures.
Where to use:
Over properly prepared silicone and elastomeric coatings; masonry paint, and new concrete.How to apply:
Brush or roller applied. Additional InformationPerformance Characteristics
- Painted surface compatibility M3P Overcoat was developed to maintain maximum vapor permeability of previously coated structures.
- Versatility M3P Overcoat can also be applied to sound uncoated masonry surfaces in addition to coated surfaces. M3P Overcoat is the preferred potassium silicate product for surfaces with exposed aggregate.
- Breathability Will not decrease MVT.
- Anti-carbonation Mitigates carbonation of concrete.
- Water repellent Siloxane component provides long term protection from water and water borne contaminants.
- Stable Unaffected by UV. Fire-resistant.
- Environmentally friendly Water-based, low odor, low VOC.
- Ease of application Single component, stir and apply.
- Extensive color spectrum 34 standard colors, plus Masonry Restoration standard colors and custom matching.
Surface Preparation
- Remove loose and deteriorated material, laitance, dirt, dust, oil, and any surface contaminants that will inhibit proper penetration.
- Surface must be dry and frost-free.
- New concrete or repairs must cure a minimum of 7 days prior to application.
Priming
- No priming is required.
Mixing
- Stir or mechanically mix using a low speed drill (400 – 600) until homogenous.
- Mix pails from different batches when an entire surface is visible.
Application
- Apply a test sample in an inconspicuous area to determine suitability.
- Always check adhesion by using a Tape test such as ASTM D3359.
- Roll or brush apply a uniform 7 mils wet coat. Allow to dry a minimum of 12 hours. Apply a second uniform 7 mils wet coat.
- Substrate temperature must be above 45°F.
- Ambient temperature must be above 45°F for the entire curing period.
- For roller applications use a 3/8 – 1/2 inch synthetic nap roller depending on texture of substrate.
- Work to pre-determined breakpoints in the structure.
- Maintain a wet edge.
Curing
- Protect from moisture for 24 hours.
Clean Up
- Clean tools and equipment with water. Clean adjacent areas with water before material dries.
Coverage/Yield
- 170 – 300 ft²/gal
- 100 – 180 ft²/gal for split block or rough surfaces.
Product Handling
- Packaging 5 gallon containers.
- Shelf Life 18 months in unopened containers.
- Storage Protect from freezing. Transport and store in cool, clean, dry conditions in unopened containers. High temperature will reduce shelf life.
Limitations
- Do not apply if precipitation is forecast within 24 hours of application.
- Do not apply in strong winds.
- Do not apply to frozen surfaces.
- Do not apply if temperature of substrate is below 45°F.
- Do not apply if ambient temperature is below 45°F.
Health and Safety
- Product is alkaline.
- Do not ingest.
- Avoid contact with skin and eyes.
- Refer to Safety Data Sheet (SDS) for additional information.
First Aid
- In case of skin contact, wash thoroughly with soap and water.
- For eye contact, flush immediately with a high volume of water for at least 15 minutes and contact a medical professional.
- For respiratory problems, remove person to fresh air.
- If respiratory difficulty persists, contact a medical professional.
Disposal
- Dispose of material in accordance with local, state, and federal regulations.
