Applying a fire retardant coating like Aeon Core LDH Gel doesn't need special skills — just good preparation and an even hand. Follow this step-by-step guide for a clear, durable, protective finish.
What you'll need
- Aeon Core LDH fire retardant gel
- A brush, roller or spray gun (depending on the surface)
- Clean cloth, mild cleaner, and fine sandpaper for glossy surfaces
- Drop sheets and basic ventilation
Step 1 — Prepare the surface
Make sure the substrate is clean, dry and free of dust, oil or grease. Dirt and grease stop the coating bonding properly. For glossy or sealed surfaces, a light sand improves adhesion. Wipe away all dust before you start.
Step 2 — Apply uniformly
Apply the gel evenly using your chosen method:
- Brush — best for detailed items, edges and small furniture.
- Roller — fast and even for flat panels and boards.
- Spray gun — ideal for large areas, fabric and production volumes.
Keep a consistent, moderate coat. Avoid pooling or thick runs — even coverage protects better than heavy patches.
Step 3 — Let it dry to a clear finish
Allow the coating to dry completely so it forms a clear, protective layer. Keep the area ventilated while drying. Drying time depends on temperature, humidity and coat thickness.
Step 4 — Recoat if needed
For high-exposure areas or heavier substrates, apply a second coat once the first is fully cured. Two thinner coats often outperform one thick coat.
Common mistakes to avoid
- Skipping prep — coating over dust or grease weakens adhesion.
- Applying too thick — causes runs and uneven drying.
- Not testing first — always trial a hidden patch on fabric or finished wood to check appearance.
- Rushing the dry time — let each coat cure before recoating or using the item.
Want the science behind why it works? Read what is LDH fire retardant or see the test data.