M3P

Mineral silicate-based, highly permeable paint/stain, with a natural finish for concrete, masonry, and terracotta. Durable protection for historic structures.

Where to use:

Long term protection and enhanced aesthetics of concrete, masonry, and stone. Opaque and semi-transparent finishes are available.

How to apply:

Brush or roller applied. Additional Information

Performance Characteristics

  • Anti‐carbonation Reacts with calcium hydroxide at surface, mitigating carbonation to depth of penetration.
  • Water repellent Siloxane component provides long term protection from water and water borne contaminants.
  • Non‐film forming Will not peel, blister or flake.
  • Breathability 97% vapor permeable.
  • Stable Unaffected by UV. Fire resistant.
  • Colorfast Fade resistant pigments.
  • Environmentally friendly Water based, low odor, low VOC.
  • Ease of application Can be blended for semi‐transparent finishes, stir and apply.
  • Extensive color spectrum 34 standard colors, plus Matrix colors and custom matching.

Surface Preparation

  • Remove loose and deteriorated material, laitance, dirt, dust, oil and any surface contaminants that will inhibit proper penetration.
  • Prepare surface to be sandpaper‐like texture (CSP 3) by mechanical abrasion or water blasting. Refer to ICRI Surface Preparation Guide 03732 for information about Concrete Surface Profile (CSP).
  • Surface must be dry and frost free.
  • New concrete or repairs must cure a minimum of 7 days prior to application.
  • Substrate must be absorptive for proper application.

Priming

  • M3P is a self‐priming two coat system. Mockups will determine if chalking can occur as a result of an unusually high absorption rate of the substrate

Mixing

  • Stir or mechanically mix using a low speed drill (400 ‐ 600) until homogenous. Product may settle during storage or shipping.
  • Box mix pails from different batches when an entire surface is visible.
  • For opaque finishes, no dilution is required.
  • For transparent finishes, mix with M3P‐X in ratios of 1:1, 1:2, 1:3, 1:4, etc. The more M3P‐X added, the greater transparency in the finish.
  • Higher dilution rates require more frequent stirring, be sure to mix/stir often to maintain color consistency.

Application

  • Two coats of M3P at selected dilution is required to achieve best results.
  • Apply a test sample to determine suitability. Ensure by visual inspection that M3P has penetrated the substrate. Surface must be absorptive for M3P application to be successful.
  • Ambient temperature must be above 45°F for the entire curing period.
  • For roller applications use a 3/8 ‐ ½‐inch synthetic nap roller depending on texture of substrate.
  • Brush or back roll into substrate for pinhole free, uniform coverage.
  • Work to pre‐determined break points in the structure. DO NOT CUT IN!
  • Maintain a wet edge while working to each architectural break point.
  • A second application of M3P can be applied after the first is dry‐to‐touch.

Curing

  • Protect from moisture for 24‐48 hours.

Clean Up

  • Clean tools and equipment with water. Clean adjacent areas with water before material dries.

Coverage/Yield

  • Coverage rates vary considerably from substrate to substrate for all potassium silicate coatings due to surface texture and absorption rates of the masonry being coated. Apply a mockup to determine coverage rates for specific project.
  • M3P – 150 – 300 ft²/gal.

Product Handling

Packaging
  • 5 gallon containers. 45 lbs. per unit.
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. Ambient temperature must stay above 45°F during curing period.

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
  • Pump & Spray
  • FAQs
  • Safety Data Sheet
  • Technical Bulletin
  • Color Card

Physical state & appearance

 

Thick liquid emulsion, natural

Base

 

Aqueous

pH

 

11.2

Percent solids by weight

 

31%

Viscosity

ASTM D562

65 - 69 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 penetration and leakage

ASTM E514

100% reduction

Water vapor transmission

ASTM D6490

96% WVT

Water vapor transmission – Procedure B

ASTM E96

75 perms

Heat stability

ASTM C932

Pass – 2 weeks @ 120ºF

Mud cracking @ 10 mils.

 

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
40°
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
40°
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

Mineral silicates chemically react with any substrate containing calcium hydroxide resulting in a surface that is will not peel or blister.  Mineral silicates are highly vapor permeable finishes particularly suitable for concrete and masonry structures.         

Mineral silicate technology is formulated to be used on concrete and masonry structures because it is highly permeable, durable, color fast, with a natural finish that does not look like paint.  M3P is a self-priming system that protects concrete and masonry from water entry, carbonation and other environmental contaminants.  M3P is a perfect choice when the goal is to preserve a natural appearance and provide a naturally organic matte finish.    

M3P is a paint that can be diluted with M3P-X at various rates to change the opacity of the finish. At a dilution rate of 1:1 and higher M3P is a stain.  As a stain, M3P is effective in blending color variations of the substrate to create a more uniform appearance.         

Because of its chemistry it is important to perform color matching on the specific substrate that is to receive the product and at the specific dilution rate if any. Conproco maintains two color labs in the US, staffed by personnel who combined have over 100 years of color matching experience to help make the process as fast and foolproof as possible.

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.

Projects Showcase

Hersheypark Stadium

Project History

Opened in 1939, Hersheypark Stadium is the most prominent outdoor venue between Philadelphia and Pittsburgh. The stadium hosts very diverse events from concerts to rodeos to racing. It was important that the coating selected to refresh the appearance was respectful of the stadium’s architecture. Carbonation, a concern for any building, would be a particular concern for a venue hosting racing events. Having a low odor system was important for scheduled events. The coating also had to be highly vapor permeable, as the stadium has no roof and water intrusion was likely. Conproco’s mineral silicate system was a natural choice. Since this system does not peel, blister or flake, there was no concern that the thousands of fans streaming through the venue would abrade or damage the coating. The final result was a very natural, vibrant finish.

 

Old Montgomery Courthouse

Project History

The Old Court House in Montgomery County, Ohio, was completed in 1850. Since that time, 14 Presidents have visited the structure and used its classic front steps as a platform for addressing audiences. The courthouse underwent several renovations during the 1900s to accommodate the flow of legal traffic. These renovations had the unintended result of dulling the impact of the original architecture. In 2000, Montgomery County and the Montgomery County Historical Society partnered to restore the building, and establish it as a civic focal point, with a budget of 4.2 million dollars. The limestone exterior had to be repaired and finished with materials which would blend seamlessly with the existing stone. Matrix was used as a repair mortar, not only for its performance and workability, but because it could be color matched on site. M3P was used for the extensive cornice repairs on the gables. The ability of M3P Stain to blend with these large sections contributed greatly to the completion of the project.

Products
Matrix
M3P

Architects
Jeff Wray
Architects,
Dayton, OH

Schooley Caldwell
Associates,
Columbus, OH

Contractor
Western
Restoration and
Waterproofing Co.,
Cincinnati, OH

 

Associated Products