Where to use:
Over properly prepared silicone and elastomeric coatings; masonry paint, and new concrete.How to apply:
Brush or roller applied. Additional InformationMinimize 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.
- Technical Data
- Data Bulletin
- CSI Spec
- Competition
- Curing
- FAQs
- Safety Data Sheet
- Color Card
- Coating Selector
Physical state & appearance | Â | Thick liquid emulsion, natural |
---|---|---|
Base | Â | Aqueous |
pH | Â | 11.2 |
Percent solids by weight | Â | 51% |
Viscosity | ASTM D562 | 95 - 105 KU – paint paddle |
Density of liquid coatings | ASTM D1475 | 9.4 lbs./gal |
Drying time |  | 1 hour @ 65ºF – dry to touch |
Fungus resistance | Fed. Spec. TT-P-19D | No growth |
Accelerated weathering – QUV | ASTM G154 | 2000 hours – UV-B cycled with condensation - no effect |
Hiding power of coating @ 5 mils. | ASTM D2805 | Excellent |
Water vapor transmission | ASTM D6490 | 71% WVT |
Water vapor transmission – Procedure B | ASTM E96 | 65 perms |
Water penetration and leakage | ASTM E514 | 100% reduction |
Heat stability | ASTM C932 | Pass – 2 weeks @ 120ºF |
Mud cracking @ 10 mils. | Â | None |
Vertical
Conproco | Sika | BASF | Sto | Tamms | Keim |
---|---|---|---|---|---|
Sikagard 670W Sika Color | Parkcoat Super Colorcoat Sealcoat Thorocoat 200 Thorosheen Thoro 35 | Concrete Coating 232 and 230 Maxicryl 201 | Tammosheen Tammscoat | None | |
Elastocolor 550W | Thorolastic Thorogard Colorflex Flexcoat | Stolastic 211 Stolastic 212 | Tammolastic | None | |
None | None | None | None | Soldalit TDS | |
None | None | None | None | Soldalit TDS | |
None | None | None | None | Soldali-Dilution | |
Skiaguard 740W | Master Protect H107 | None | Baracade 40/100 | None | |
None | None | None | Aquastain T-96 | None |
Horizontal
Conproco | Sika | BASF | Sto | Tamms | Keim |
---|---|---|---|---|---|
None | None | Texture Coat 510 | None | None | |
None | None | None | Aquastain T-96 | None |
Cementitous Products
Product | Minimum Temperature | Minimum to 55° F | 55°F – 70° F | 70° F and above | Minimum Time to Coat |
---|---|---|---|---|---|
ISR CM | 40° | 12 Hours | 4 Hours | 2 Hours | 3 to 5 days depending on temperature |
ISR VO | 40° | 12 Hours | 4 Hours | 2 Hours | 3 to 5 days depending on temperature |
ISR AG | 40° | 12 Hours | 4 Hours | 2 Hours | 3 to 5 days depending on temperature |
Conpro Set | 40° | 12 Hours | 4 Hours | 2 Hours | 3 to 5 days depending on temperature |
Quick Shot | 40° | 8 Hours | 2 Hours | 1 Hour | 3 to 5 days depending on temperature |
Forment (remove forms) | 40° | 72 Hours | 48 Hours | 24 Hours | 3 to 5 days depending on temperature |
Gun Shot LPS | 40° | 12 Hours | 4 Hours | 2 Hours | 3 to 5 days depending on temperature |
Injection Grout (remove clay) | 40° | 24 Hours | 24 Hours | 24 Hours | 3 to 5 days depending on temperature |
One Shot 2C | 45° | 24 Hours | 12 Hours | 6 Hours | 3 to 5 days depending on temperature |
Matrix | 40° | 12 Hours | 4 Hours | 2 Hours | 3 to 5 days depending on temperature |
Matrix TR | 50° | 12 Hours | 4 Hours | 2 Hours | 3 to 5 days depending on temperature |
Repoint | 40° | 12 Hours | 4 Hours | 2 Hours | 3 to 5 days depending on temperature |
Plastermix | 40° | 12 Hours | 4 Hours | 2 Hours | 3 to 5 days depending on temperature |
Structural Skin | 40° | 12 Hours | 4 Hours | 2 Hours | 3 to 5 days depending on temperature |
Conpro One Coat | 40° | 12 Hours | 4 Hours | 2 Hours | 3 to 5 days depending on temperature |
Conpro Stucco | 40° | 12 Hours | 4 Hours | 2 Hours | 3 to 5 days depending on temperature |
Foundation Coat | 40° | 12 Hours | 4 Hours | 2 Hours | 3 to 5 days depending on temperature |
Super Seal | 40° | 12 Hours | 4 Hours | 2 Hours | 3 to 5 days depending on temperature |
Liquid Products
Product | Minimum Temperature | Minimum to 55° F | 55°F – 70° F | 70° F and above | Minimum Time to Coat |
---|---|---|---|---|---|
Conpro Start | 40° | 18 Hours | 12 Hours | 6 Hours | Refer to temperature |
ECB | 40° | 8 Hours | 1 Hour | 30 Minutes | Dry to touch |
Primer | 40° | 8 Hours | 1 Hour | 30 Minutes | Color change to orange |
Shield MX | 40° | 24 Hours | 18 Hours | 12 Hours | Dry to touch |
M3P & M3P-X | 45° | 24 Hours | 18 Hours | 12 Hours | Dry to touch |
M3P Overcoat | 45° | 24 Hours | 18 Hours | 12 Hours | Dry to touch |
Conpro Lastic | 45° | 24 Hours | 18 Hours | 12 Hours | Dry to touch |
Color Coat | 45° | 24 Hours | 18 Hours | 12 Hours | Dry to touch |
Super Color Stain | 45° | 24 Hours | 18 Hours | 12 Hours | Dry to touch |
Elastideck | 45° | 24 Hours | 18 Hours | 12 Hours | Dry to touch |
Terra Color | 45° | 24 Hours | 18 Hours | 12 Hours | Dry to touch |
Terracotta Finish | 45° | 24 Hours | 18 Hours | 12 Hours | Dry to touch |
Each additional coat of paint, particularly elastomeric and silicon-based coatings, reduces vapor transmission of the wall system. This can lead to deterioration in the wall because the moisture naturally generated from inside is not able to escape as designed. Each additional coating application can further exacerbate the problem.     Â
M3P Overcoat is a highly permeable coating that is formulated to bond tenaciously to elastomeric coatings, as well as acrylic and silicone paints. M3P Overcoat passes ASTM E514 (100% reduction of water penetration and leakage).              Â
M3P Overcoat is a mineral silicate-based chemistry with the addition of an acrylic component. The addition of the acrylic is to create adhesion between Overcoat and a previously applied coating. Silicone and elastomeric coatings reduce the breathability. Application of M3P Overcoat produces a fresh natural appearance without changing water vapor transmission.
How to use this chart
Choose the 3 or 4 most important characteristics from the Performance Criteria. Determine which product is best suited to the specific application by adding the value numbers for each product and comparing the totals.
5 = Best Available; 4 = Excellent; 3 = Above average; 2 = satisfactory; 1 = Not a characteristic of the product.
PERFORMANCE CRITERIA – VERTICAL APPLICATIONS
 | M3P | M3P Overcoat | Conpro Lastic | Color Coat | SuperColor Stain | Terra Color |
---|---|---|---|---|---|---|
Breathable/Vapor transmission | 5 | 5 | 3 | 3 | 4 | 3 |
Flexible | 1 | 1 | 5 | 2 | 2 | 2 |
Weather and Water Protection | 4 | 4 | 5 | 3 | 3 | 3 |
Long-Term Durability | 5 | 4 | 4 | 3 | 3 | 3 |
Carbonation Mitigation | 5 | 5 | 5 | 3 | 2 | 3 |
Fade Resistance | 5 | 5 | 4 | 4 | 4 | 4 |
Crack Bridging | 1 | 1 | 5 | 1 | 1 | 1 |
Dirt Pick-up | 5 | 5 | 3 | 4 | 5 | 4 |
Stain Resistance | 5 | 5 | 3 | 4 | 5 | 4 |
Abrasion Resistance | 2 | 2 | 4 | 4 | 4 | 4 |
Fugus and Mildew Resistance | 5 | 5 | 4 | 4 | 4 | 4 |
Maintenance Requirement | 5 | 5 | 4 | 3 | 4 | 3 |
Opacity / Hiding Power | 2 | 4 | 5 | 4 | 3 | 4 |
M3P: An inorganic mineral silicate based paint that provides long-term protection and water repellency without changing the natural appearance of the substrate.
Best Suited: Protection from water and carbonation for structures that are difficult to maintain or impractical to recoat in the future. Provides a natural “not painted” appearance. Use when the object is to blend the color of the substrate to be more uniform
M3P Overcoat: Highly breathable hybrid mineral silicate/acrylic coating for application over painted or unpainted surfaces providing a natural non-gloss finish.
Best Suited: Previously painted substrates, particularly silicone and elastomeric coatings which after multiple application reduce vapor transmission to low levels. On unpainted surfaces to preserve natural appearance while hiding significant color variations in the substrate.
Conpro Lastic: An elastomeric waterproof breathable membrane for vertical exterior surfaces.
Best Suited: Structures that require a membrane waterproofing treatment because of cracks, mortar joints, porosity and other physical characteristics that allow water, carbonation and other contaminants into the substrate.
Color Coat: A water-based acrylic coating for concrete and masonry substrates.
Best Suited: Ideal for weather protection of concrete and stucco. High vapor transmission makes this coating well suited for nosing and underside of balconies. Good performance to cost ratio.
Super Color Stain: A penetrating opaque water-based stain that provides uniform color to concrete and masonry.
Best Suited: Horizontal and vertical surfaces that require water repellency as well as uniform color.
TerraColor: Formulated to match colored glaze finishes.
Best Suited: Repairing and restoring terracotta and brick.
PERFORMANCE CRITERIA – HORIZONTAL APPLICATIONS
 | Elastideck | SuperColor Stain |
---|---|---|
Breathable/Vapor transmission | 4 | 4 |
Flexible | 5 | 2 |
Weather and Water Protection | 5 | 3 |
Long-Term Durability | 3 | 3 |
Carbonation Mitigation | 5 | 2 |
Fade Resistance | 4 | 4 |
Crack Bridging | 5 | 1 |
Dirt Pick-up | 2 | 5 |
Stain Resistance | 2 | 5 |
Abrasion Resistance | 4 | 4 |
Fugus and Mildew Resistance | 4 | 4 |
Maintenance Requirement | 4 | 4 |
Opacity / Hiding Power | 5 | 3 |
Elastideck: A flexible, breathable waterproof membrane for horizontal surfaces.
Best Suited: Balconies, walkways and slab -on-grade surfaces. Excellent for pedestrian and light vehicular traffic.
Super Color Stain: A penetrating opaque water-based stain that provides uniform color to concrete and masonry.
Best Suited: Apply to Elastideck in the same color to provide resistance to dirt pick up and staining.
THINGS YOU SHOULD KNOW WHEN CHOOSING A COLOR AND COATING
The actual color of the coating and stain may vary from the color samples in this card.
Always order a wet sample to be applied to the intended substrate. Allow to cure for a minimum of 24 hours before evaluating.
Stains are generally used in a color similar to the substrate and tend to be more natural looking compared to paints.
Paints are generally used to change the color of the substrate.
Elastomeric coatings are used to waterproof substrates that have movement (cracking or when carbonation is a concern).
The curing rate will affect the final color of Conpro Stucco. Substrate absorption, temperature, wind, moisture and the changing angle of the sun or obstructions that block the sun while curing will contribute to color variation of cementitious coating.
Always apply a sample of the material to the structure to determine actual coverage and the degree of adhesion (ASTM D3359). Allow one week curing before conducting adhesion test.
Plastermix applied to concrete prior to a coating will dramatically improve the overall appearance by creating a uniform, bug-hole free surface.
Untreated CMU surface

Color Coat on CMU
One Coat

Two Coats

M3P Overcoat on CMU
One Coat

Two Coats

M3P on CMU
One Coat

Two Coats

Super Color Stain on CMU
One Coat

Two Coats

Conpro Lastic on CMU
Two Coats
