Plastermix

Durable cementitious parge coat to fill bug holes and voids in concrete. Creates a smooth and textured finish for coatings and paints.

Where to use:

Fill voids and provide a uniform finish to cast concrete.

How to apply:

Trowel, sponge float, or spray applied. Additional Information

Performance Characteristics

  • Long term protection Density and thickness provide resistance to carbonation.
  • Enhanced aesthetics Significantly improves the natural appearance of concrete, filling voids, sealing pores and adding subtle, uniform texture.
  • Improves performance of supplemental coatings Fills voids and pores that coatings don’t, providing uniform, monolithic base for protective coatings, such as Conpro Lastic, Super Color Stain and Color Coat.
  • Anti-carbonation system Combined with Conpro Lastic provides protection from carbonation, chlorides and other environmental pollutants.
  • Economical High production, easy to apply by spray, trowel or sponge float.

Surface Preparation

  • Remove loose and deteriorated material, laitance, dirt, dust, oil and any surface contaminants that will inhibit proper bond.
  • Repair spalled areas, static cracks and voids with Conpro Set.
  • Substrate should have open-pored and textured surface.
  • For best results grind or abrasive blast (CSP 3). Refer to ICRI Surface Preparation Guide 03732 for information about Concrete Surface Preparation (CSP).
  • Apply Conpro Start where a consolidant is of benefit.
  • Saturate substrate with clean water, (saturated surface dry/SSD). Wall should be wet when Plastermix is applied.

Priming

  • No priming is required under normal circumstances.

Mixing

  • Mechanically mix using a low speed drill (400 – 600 rpm) and mixing paddle or mortar mixer.
  • Pour 3-3/4 quarts of potable water into a clean mixing vessel and slowly add all of the powder.
  • Add 1 quart of K-88 Admix (replacing 1 quart of water) per bag of material to increase adhesion and aid in curing, when the substrate is very dense and/or when rapid evaporation will occur due to high wind and high temperature.
  • The proper mix ratio is 4½ parts powder to 1 part water to ¼ parts K-88 Admix.
  • Mix continuously for 3 minutes to a uniform, lump-free consistency.
  • Add up to 1 pint of additional water if needed.
  • Allow to “breathe” for 1 minute and remix for 1 minute. This will improve workability and open time.
  • Do not over mix, as this will entrain excess air.

Application

  • At the time of application, surfaces should be saturated surface dry (SSD) but hold no standing water.
  • Bagging – mix 1 part K-88 Admix with 3 parts water to a slurry consistency. Apply with a sponge float to fill voids and bug holes.
  • Texture coat – apply with a trowel. Allow material to take up to thumb-print hard. Apply second application with a trowel and finish with a sponge float.
  • Do not exceed 1/16 inch total thickness.

Curing

  • Keep damp with a fine mist of water.
  • Protect from direct sunlight, wind, rain and frost during curing period.

Clean Up

  • Clean tools and equipment with water immediately after use.
  • Cured material must be removed mechanically.

Coverage/Yield

  • 100 ft.²/50 lbs.@1/16 inch.

Product Handling

Packaging
  • 50 lbs. paper bags.
Shelf Life
  • 12 months when properly stored.
Storage
  • Transport and store in cool, clean, dry conditions in unopened containers.
  • High temperature or high humidity will reduce shelf life.

Limitations

  • Do not apply unless substrate and ambient temperature can be maintained at a minimum of 40°F for 24 hours. Refer to ACI Cold Weather Application Guidelines.
  • Cold mixing water and low temperature will retard set. Hot water and high temperature will accelerate set.
  • Protect application from precipitation and high wind for at least 24 hours.
  • Do not add more water than specified.
  • Avoid overworking material during placement.

Health and Safety

  • Product is alkaline.
  • Do not ingest.
  • Avoid breathing dust.
  • 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.

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

Physical state and appearance

 

Fine gray powder

Base

 

Portland cement

pH

 

>12

Setting by vicat needle

ASTM C191

Initial 60 minutes – Final 285 minutes

Percent air by volumetric

ASTM C173

6%

  

7 Days       14 Days       28 Days

Compressive strength - psi

ASTM C109

2900             3000                 3400

Tensile strength - psi

ASTM C307

400                 500                  600

FOR PROFESSIONAL USE ONLY

Conproco warrants this product for one year from the date of manufacture to be free from manufacturing defects and to meet the technical properties on the current technical data sheet if used as directed within shelf life. User determines suitability of product for use and assumes all risks. Buyer's sole remedy shall be limited to the purchase price or replacement of product, exclusive of labor or cost of labor. June 25, 2020.

NO OTHER WARRANTIES EXPRESSED OR IMPLIED SHALL APPLY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. CONPROCO CORP SHALL NOT BE LIABLE UPON ANY LEGAL THEORY FOR SPECIAL OR CONSEQUENTIAL DAMAGES.

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

Cast-in-place concrete typically has bug holes and voids on the surface as a result of pockets of air.  Plastermix is a cementitious parge coat applied in a thin coat to fill the voids and create a uniform surface.         

Mix 1 part K-88 Admix with 3 parts water to a slurry consistency.  Apply with a sponge float.  For a texture coat, apply with a trowel, allow to take up until thumbprint hard.  Apply a second coat with a trowel and finish with a sponge float.  Do not exceed 1/16".

Projects Showcase

Harbor Towers 2008

Project History

The Harbor Towers were designed by architect I.M. Pei and constructed in the 1970s. In the mid 1990s the buildings had shown effects of their location in Boston Harbor.
Over a three-year period restorations and waterproofing to the building were made using Conpro Lastic. In 2008 the Towers were in need of a touch up, the appearance of the buildings was mottled and extremely dirty. These effects were again due to the constant ocean spray from the harbor coupled with the airborne particulate from the ten-year long “Big Dig”. Working with WJE, contractor NER Construction Management, Inc. found that the best solution was to prime the existing surface using Conproco Point 5 acrylic primer and recoat with Conpro Lastic elastomeric coating.
The building was power washed, primer was applied, followed by two 15-mil coats of Conpro Lastic. Conpro Lastic is a waterproof membrane, ideal for these high-rise buildings as it bridges minor cracking and performs well with the harsh conditions of the city and the driving rains of the North Atlantic.

 

TWA Terminal

Project History

Eero Saarinen, an influential American architect was commissioned to design the TWA terminal in 1956. Along with the structural engineers Ammann & Whitney the “birdlike” structure was conceived as a complete environment. The architectural expression was intended to embody movement and transition. The construction of the terminal required a staff of 14 engineers and 150 craftsman. The selection of a shell-type structure offered the most dramatic architectural opportunities and made TWA stand out at the airport. For the concrete framework, steel-pipe scaffolding was erected on a grid, with each vertical accurately placed to support the underside of the form at the proper elevation and position. The terminal was closed in 2001 after TWA ceased to exist. DOCOMOMO-US, the Municipal Art Society of New York as well as the New York Landmarks Conservancy have been active in protecting the iconic structure. Today the beautifully restored terminal has reopened as a portal for Jet Blue Airways.

 

Associated Products