Vulkem® 191 Primer – High-Performance Adhesion Enhancer
TDS
Boost the bond. Seal with confidence.
Vulkem® 191 Primer is a fast-drying, one-part primer specially formulated to promote superior adhesion of Tremco polyurethane sealants to a wide range of porous surfaces. Whether you're working with concrete, masonry, or wood, this primer ensures a long-lasting, secure seal.
Key Features:
- ✅ Excellent Adhesion – Enhances bonding of polyurethane sealants to porous substrates.
- ⏱️ Fast-Drying Formula – Ready for sealant application in as little as 30 minutes.
- 🧱 Versatile Use – Ideal for concrete, masonry, wood, and other porous materials.
- 🛠️ Easy Application – Single-component, brush-on application for quick and efficient use.
Recommended For:
- Expansion joints
- Window and door perimeters
- Precast concrete panels
- Parking decks and plazas
Coverage:
- Approximately 250–300 sq. ft. per gallon, depending on surface porosity.
Application Tips:
- Surface must be clean, dry, and free of contaminants.
- Apply with a brush or roller.
- Allow primer to dry completely before applying sealant.
