Primer 1218 – Maxisil

Primer 1218 Maxisil is a professional‑grade undercoat designed to promote maximum adhesion of Maxisil silicone sealants on porous, powdery, or difficult substrates. By pretreating stone, concrete, masonry, and grout joints, this fast‑drying primer ensures a long‑lasting, watertight seal that resists weathering, movement, and chemical exposure.

Key Benefits

• Enhances bond strength between Maxisil silicone sealants and absorbent surfaces
• Fast flash‑off time—ready for sealing in just 10‑15 minutes
• Reduces edge staining on marble, granite, and limestone installations
• Ideal for swimming pools, showers, façades, and exterior expansion joints
• Available in convenient 250 ml and 1 L bottles