COLOER Hardscape Expanding Foam 900ml

Create strong, natural-looking aquascapes and terrarium structures with COLOER Hardscape Expanding Foam (900ml). Perfect for securing heavy rocks, bonding driftwood, and building custom waterfalls or backgrounds.

• Two Natural Colors: Choose Grey to blend seamlessly with rockwork or Brown to match natural driftwood and roots.
• Strong & Durable Bond: Expands to fill gaps, lock hardscape in place, and support heavy structural layouts.
• Waterproof & Fish Safe: Safe for both freshwater and marine aquariums, as well as vivariums once fully cured.
• Large 900ml Can: Ideal for medium to large-scale aquascaping projects.

How to Use COLOER Hardscape Expanding Foam:

1. Preparation: Ensure hardscape surfaces (rocks, driftwood) are clean and free of dust or heavy moisture. Wear protective gloves.

2. Shake Well: Shake the can vigorously for at least 60 seconds before attaching the nozzle applicator.

3. Application: Hold the can upside down and apply foam into cracks or gaps between hardscape pieces. Note: The foam will expand as it cures, so fill gaps only halfway.

4. Curing: Allow the foam to skin over in 10–15 minutes and fully cure for 24 hours.

5. Trimming & Carving: Once fully hardened, use a utility knife to trim away excess foam or carve natural textures.

6. Submersion: After full curing and trimming, the hardscape structure is safe to submerge and completely non-toxic for fish, plants, and aquatic life.