Using Epoxy on Vertical Surfaces or Uneven Gaps

The Importance of Non-Sag Formulas

When working on vertical areas or filling odd-shaped gaps, ordinary liquid epoxies may run or settle before curing. Non-sag, thixotropic epoxies, like Magelstick Epoxy Mastic, are specifically designed to hold their shape after application. This prevents drips, helps with precise gap filling, and ensures the adhesive maintains good contact with all surfaces involved.

• Minimal shrinkage reduces the risk of sunken joints once cured
• Ideal for masonry, stone, metal, and cement surfaces

Application Techniques for Uneven and Vertical Surfaces

Before starting, ensure surfaces are clean, dust-free and stable. Prepare small batches of the epoxy mastic, mixing according to instructions (for example, Magelstick uses a 100:50 ratio). Apply with a spatula or putty knife, working the product thoroughly into gaps or over vertical areas to maximise adhesion and support. The product will resist sagging, allowing you to position it confidently before curing begins.

Alternative Options for Quick Repairs

For less demanding vertical applications or mixed materials (such as when bonding not only stone but also plastics, metals, or wood), a thickened fast-set epoxy such as Klebfix Two-Component Fast Epoxy Glue or FixExpress Epoxy Glue may be suitable. While not as sculptable as mastic, these pastes set rapidly and provide strong, reliable bonds for quick touch-ups or repairs.