Description
PRIMER 733 a solvent-based, quick-drying primer is used for priming masonry joints and other recommended substrates before the application of NP 1, NP 2, Ultra, SL 1, and SL 2 sealants. PRIMER 733 improves adhesion to substrates requiring a primer.
Features
- Solvent-based
- Adhesion promoting
- Compatible with BASF polyurethane sealants
Benefits
- Quick drying
- Improves adhesion to substrates requiring a primer
- Versatility and convenience
- PRIMER 733 is a solvent-based primer for NP 1, NP 2, Ultra, SL 1, and SL 2 sealants
For priming masonry joints and other recommended substrates before the application of BASF polyurethane sealants.
Typical properties*
| Flashpoint |
18°C |
| Viscosity |
90 cps |
| Solids (% by volume) |
35 |
Test results are averages obtained under laboratory conditions.
Reasonable variations can be expected.
How to apply
Surface preparation
Masonry surfaces must be sound, clean, dry, and free of all paint, grease, oil, dirt, and foreign matter. Surfaces must be fully cured and free of laitance, moisture or form oils.
Where necessary, clean joint surfaces by grinding, sandblasting, or mechanical abrading; remove dust, dirt, and loose particles before priming.
Metal-edged joint surfaces must be clean, and free of all rust, oil, and dirt.
Application
Apply PRIMER 733 to the cleaned joint surfaces by brushing on a thin, uniform coat. Use primer as is; do not thin. Too much primer may act as a bondbreaker.
Allow primer to dry tack free before applying sealant. Drying time will vary depending on temperature and humidity. Sealant must be applied the same day as primer.
Clean up
Brushes and tools may be cleaned with CLEANING SOLVENT NO. 2.
Drying time
15 minutes at 21°C and 50% humidity.
For best performance
Substrates such as copper, stainless, and galvanized typically require the use of a primer. An adhesion test is recommended for any other questionable substrate. Make certain the most current version of this data guide is being used; call Customer Service (04-8851000) to verify the most current version. Proper application is the responsibility of the user. Field visits by BASF Middle East personnel are for the purpose of making technical recommendations only, and are not to supervise or provide quality control on the job site.
Packaging
PRIMER 733 is available in 473 ml cans.
Color
Light amber
Shelf life
Shelf life is typically 2 years when stored in unopened containers under normal conditions.
Coverage
6.87 - 7.86 m²/L or approximately 137m for a 13mm deep joint.
Danger
PRIMER 733 contains xylene, propylene 1glycol methyl ether acetate, carbon tetra-chloride, 2,4-toluene diisocyanate, toluene, calcium oxide.
Risks
Flammable liquid and vapor. Skin, eye and respiratory irritant. May be absorbed through skin. Repeated or prolonged exposure increases the risk of absorption. Potential skin/respiratory sensitiser. Potential skin and/or respiratory sensitiser. Contains material, which may cause cancer. Risk of cancer depends on duration and level of exposure. Ingestion may cause irritation. Reports associate repeated or prolonged occupational overexposure to solvents with permanent brain, nervous system, liver and kidney damage. Overexposure during pregnancy may cause harm to unborn fetus. INTENTIONAL MISUSE BY DELIBERATELY INHALING THE CONTENTS MAY BE HARMFUL OR FATAL.
Precautions
READ MSDS AND TECHNICAL DATA GUIDE BEFORE USING. DO NOT USE UNTIL ALL BYSTANDERS HAVE BEEN WARNED OF PRODUCT HAZARDS. KEEP AWAY FROM HEAT, FLAME AND SOURCES OF IGNITION. Vapors are heavier than air. DO NOT cut or weld on or near empty container. Empty container may contain explosive vapors or hazardous residues. Keep container closed. All label warnings must be observed until container is commercially cleaned or reconditioned. Use only with adequate ventilation. DO NOT get on skin, in eyes, or on clothing. Wash thoroughly after handling. DO NOT breathe vapors. Wear clothing to cover skin. Use impervious gloves, eye protection and if the TLV is exceeded or product is used in a poorly ventilated area, use NIOSH / MSHA approved respiratory protection. NOT RECOMMENDED FOR USE IN AREAS WHERE VAPORS CAN ACCUMULATE OR BECOME ENTRAPPED.
First aid
In case of eye contact, flush thoroughly with water for at least 15 minutes. SEEK IMMEDIATE MEDICAL ATTENTION. In case of skin contact, wash affected areas with soap and water. If irritation persists, SEEK MEDICAL ATTENTION. Remove and wash contaminated clothing. If inhalation causes physical discomfort, remove to fresh air. If discomfort persists or any breathing difficulty occurs, or if swallowed, SEEK IMMEDIATE MEDICAL ATTENTION. Refer to Material Safety Data Sheet (MSDS) for further information.
VOC content
PRIMER 733 contains 588 g/L less water and exempt solvents.