Can Magelstick Be Used on Cement and Stone Surfaces?

Suitable surfaces and common uses

Magelstick is specifically formulated for cement, natural and artificial stone, and metal. On floor preparation jobs, it is often used to repair damaged edges, fill joints, or rebuild small missing sections before the surface is primed and painted. See the Magelstick epoxy mastic product page for full details.

Because the product is weather resistant, it can be used for both interior and exterior repairs. Its thixotropic consistency means it stays workable on vertical or angled surfaces without running.

Application tips for cement and stone

Before applying Magelstick, make sure the cement or stone area is clean and free from loose material. The product is designed for use at temperatures above 10°C, so avoid cold-weather application if you want reliable curing.

• Mix the epoxy and hardener in a 100:50 ratio.
• Prepare small batches to maintain control on detailed repair work.
• Use on vertical surfaces without concerns about sagging or running.

For broader floor preparation, you may also need a primer after the mastic has cured, especially if the repaired cement will be painted.

When cement and stone repair matters before painting

If a cement floor is going to be painted, any cracks, chips, or uneven joints can show through the final coating. Magelstick gives you a way to level up those areas before priming, which can lead to a cleaner painted finish.

This is particularly useful around floor edges, steps, or stone thresholds where a standard filler may not offer the same bonding strength on mineral surfaces.