Primer is a long open time bonding agent used to improve adhesion between existing cementitious surfaces and new repair mortars/toppings.
Where to use:
Bonding primer for overlays and repair materials to hardened concrete.How to apply:
Spray, roller, or brush applied. Additional InformationMinimize InformationPerformance Characteristics
- Single component No mixing, no waste.
- Long open time Apply up to 72 hours before placing covering material.
- Color trigger Pink when applied, turns orange when ready for covering material – about 30 minutes.
- Alkali trigger Alkalinity of cement causes material to react.
- Breathability Water vapor permeable.
- Non re-emulsifying Once cured will not be affected by water.
- Environmentally friendly Water based, low odor, non-flammable.
- Easy to use Spray with low pressure or airless sprayer.
Surface Preparation
- Remove loose and deteriorated material, laitance, dirt, dust, oil and any surface contaminants that will inhibit proper penetration.
- Follow the specific surface preparation instruction for the Conproco material to be used.
- When placing fresh concrete expose aggregate of existing substrate a minimum of 1/8 inch (CSP 6). Refer to ICRI Surface Preparation Guide 03732 for information about Concrete Surface Profile (CSP).
- Protect adjacent areas from overspray.
Priming
- Conpro Primer is a priming treatment that is applied in a thin, uniform application.
Mixing
- Stir or shake container
Application
- Spray, roll, or brush Conpro Primer in a thin, uniform application.
- Do not allow Conpro Primer to form a surface film. It is critical to avoid excessive Conpro Primer thickness as this will result in a cohesive adhesion failure and delamination. On scarified horizontal applications, broom Conpro Primer immediately after spraying to avoid ponding. Conpro Primer is formulated to penetrate into the substrate.
- For roller applications use a 3/8 – 1/2 inch synthetic nap roller depending on texture of substrate.
- For spray applications use a low pressure or airless sprayer.
- Apply to all surfaces to receive covering material including the edges perpendicular to the repair zone.
- The material is pink when applied.
- The material will turn orange when dry – approximately 30 minutes @ 70°F and 50° RH.
- Apply covering material when Conpro Primer is orange.
- Install covering material within 72 hours.
- Re-apply Conpro Primer if more than 72 hours passes without placing covering material.
Curing
- No curing is required.
Clean Up
- Clean tools and equipment with water.
Coverage/Yield
- 150 – 200 ft.2/gal. depending on porosity of treated surface.
- Apply a test sample to determine actual coverage.
Product Handling
- Packaging 1 and 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 unless substrate and ambient temperature can be maintained at a minimum of 40°F for 8 hours. Refer to ACI Cold Weather Application Guidelines.
- Do not use Conpro Primer in lieu of proper surface preparation. Refer to ICRI Surface Preparation Guidelines for complete information.
- Contact Conproco for information on using Conpro Primer for DOT applications.
- Protect adjacent surfaces, Conpro Primer is pigmented and will discolor porous surfaces.
- Do not apply to frozen substrates.
- Do not apply on painted surfaces.
- Use caution when spraying in windy conditions.
Health and Safety
- Product is alkaline.
- Do not ingest.
- Avoid contact with eyes.
- Refer to Safety Data Sheet (SDS) for additional information.
First Aid
- In case of skin contact, wash thoroughly with soap and water.
- In case of 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.