5.5 Oz. Tub & Tile Adhesive Caulk, Biscuit

DAP® 18539 Kwik Seal Plus™ Tub & Tile Adhesive Sealant – Technical Product Information

DAP® Kwik Seal Plus™ 18539 is a professional-grade siliconized latex adhesive sealant engineered for demanding tub, tile, and fixture installations. The advanced hybrid formulation provides strong adhesion, superior flexibility, and a watertight seal across multiple substrates, including ceramic, fiberglass, glass, metal, plastic, and wood. Designed for use in high-moisture environments, this sealant features MICROBAN® Antimicrobial Product Protection to resist mold, mildew, and bacterial growth on the cured surface. It cures to a durable, paintable finish that accommodates movement and maintains seal integrity under thermal and mechanical stress, making it ideal for contractors requiring performance, reliability, and efficiency in bathroom and kitchen applications.

Technical Specifications

• Manufacturer: DAP® Industries
• Product Name: Kwik Seal Plus™ Tub & Tile Adhesive Sealant
• Model Number: 18539
• Form: Paste
• Container Size: 5.5 oz. Tube
• Base Chemistry: Hybrid Siliconized Latex
• Color: Biscuit
• Odor: Very slight ammonia
• Specific Gravity: 1.2
• VOC Content: 38.7 g/L (Low VOC formulation)
• Composition:
  • Calcium Carbonate
  • Proprietary Phthalate Esters
  • Limestone
  • White Mineral Oil
  • Titanium Dioxide
  • Texanol
  • Trimethoxyvinylsilane
• Application Temperature Range: 40°F to 100°F (4°C to 38°C)
• Setting Time: Approx. 10 minutes (skin formation)
• Curing Time: 24 hours (full cure under normal humidity and temperature)
• Flash Point: <200°F
• pH Range: 7 to 12
• Service Temperature Range: -20°F to 180°F (-29°C to 82°C)
• Paintability: Paintable with latex-based paints after curing
• Adhesion Substrates: Ceramic, fiberglass, glass, metal, plastic, and wood
• Moisture Resistance: Excellent after cure; watertight seal
• Cleanup: Water (prior to curing)
• Mold/Mildew Resistance: Integrated MICROBAN® antimicrobial protection
• Guarantee: Crack-Proof performance warranty
• Certifications: VOC compliant; conforms to ASTM C834 and ASTM C920 standards

Performance and Application Features

• Engineered hybrid formulation provides excellent adhesion and flexibility for multi-surface sealing applications.
• MICROBAN® technology offers long-term protection against bacterial and fungal degradation of the sealant surface.
• Forms a watertight, permanent seal ideal for wet or humid environments such as tubs, showers, sinks, and countertops.
• Siliconized latex base ensures superior bonding strength while maintaining paintability.
• Non-slump consistency allows for vertical and overhead applications without sagging.
• Low-odor, low-VOC composition meets environmental and occupational health requirements.
• Toolable surface ensures clean, uniform bead formation for professional finishing.
• Resists cracking, shrinking, and discoloration under thermal cycling and moisture exposure.

Professional Summary

DAP® Kwik Seal Plus™ 18539 provides professional contractors with a reliable, high-performance sealant designed for wet-area installations requiring long-term durability and microbial resistance. The siliconized latex composition combines the flexibility of acrylic formulations with the water resistance of silicone systems, allowing for easy application, strong substrate bonding, and lasting elasticity. MICROBAN® antimicrobial protection enhances longevity and hygiene performance in moisture-prone environments. With quick setting, easy cleanup, and compatibility across common building materials, this product delivers consistent results in high-specification residential, commercial, and institutional applications.