Name: UNS Controbond
Brand: Ultum Nature Systems
SKU: UNSCB001
Price: 6.99 USD
Availability: InStock

UNS Controbond

$6.99 USD

Usually ships in 1-2 business days from our fulfillment center

Ultum Nature Systems Controbond is an aquarium-safe glue and liquid adhesive designed to securely bond hardscape materials like stone and driftwood. When paired with UNS Controlock, it cures quickly to form an ultra-strong hold, keeping your planted aquarium layout stable during filling, planting, and routine maintenance.

For best results, Controbond is designed to be used with UNS Controlock bonding material, which acts as a structural base to create stronger connections between hardscape pieces. Ideal for reinforcing rock structures or intricate compositions, Controbond keeps your hardscape exactly where you place it!

Size: 20g
Instructions: Pinch and pack Controlock between connection points, add Controbond, and allow it to fully cure. For full instructions, see below.

Controbond Highlights
- Safe for aquarium fish and shrimp once fully cured; avoid contact with skin and eyes.
- Create intricate details in your aquascape.
- Quick-curing formula provides fast, reliable adhesion for aquarium hardscape.

Use it to attach plants too!

How to Glue and Bond Aquarium Hardscape

Most aquascapers will eventually face the dilemma of working with two or more pieces of aquarium rock or driftwood that refuse to sit or stay together in a specific position. Whether it’s twisting pieces of Spider Wood forming a tree-like structure or an Iwagumi layout that requires two stones angled together to create the focal point, getting hardscape to cooperate perfectly can be a challenge.

Whatever the case may be, hardscape can be stubborn. One sure-shot way to create a stable structure is by bonding multiple pieces together using an aquarium- and livestock-safe bonding material and adhesive system. With this method, aquascapers can securely join pieces and build more complex layouts that hold their shape and allow each piece to sit exactly as envisioned.

The method we like to use is the Ultum Nature Systems Controlock and Controbond duo. This system is a complete kit that includes Controlock, a bonding material used to fill gaps between hardscape pieces, and Controbond, a liquid cyanoacrylate adhesive that quickly hardens the structure once applied. Compatible with all types of hardscape, Controlock is available in four different colors to match common stone and driftwood tones used in aquascaping. The system is easy to use, but it’s always best to work carefully and confidently when bonding hardscape. Follow these four simple steps to get started:

Ultum Nature Systems UNS Controbond and Controlock Aquarium Hardscape Bonding Adhesive

Step 1: CHOOSE

Choose the UNS Controlock color that best matches your hardscape material. For example, Grey pairs well with Seiryu Stone, while Light Brown works great with Elephant Skin Stone or Ghost Wood.

Step 2: PINCH & PACK

Pinch and pack Controlock between the joints of your hardscape where the pieces meet. This is where the strong bond will form in the next step.

Step 3: GLUE

Apply a small amount of UNS Controbond to the packed Controlock. Do not be alarmed if a small amount of smoke appears—this is a brief chemical reaction as the adhesive bonds with the material. You can gently blow on the area to keep fumes away from your eyes. Avoid inhaling the fumes.

Step 4: TEST

After approximately one minute, the adhesive will have cured. Perform a slow lift test to confirm the hardscape pieces are securely bonded.

You can repeat these steps for any additional joints that need bonding, resulting in a stronger and more stable hardscape structure.

We’re confident in UNS Controlock and Controbond, as shown in this demonstration where six pieces of Malaysian Driftwood were bonded together and lifted and shaken without coming apart!

Demonstration of UNS Controlock Grey used with Malaysian Driftwood.

HOT TIP #1: You can use any Controlock color if the bond remains hidden—all four variants perform the same.

Using UNS Controbond Liquid Adhesive to attach moss to Lava Rock.

HOT TIP #2: Glue or attach aquarium mosses or rhizome plants to naturally hide bonded areas.

Shipping
Orders are typically processed within 1-2 business days M-F. However, additional time may be required during peak seasons and federal holidays. For orders containing live plants, we exercise extra caution and assess factors such as travel distance and weather to ensure safe transit.

To avoid delays, please ensure all order information is accurate and complete. We cannot offer refunds and are not responsible for orders shipped to incorrect addresses due to errors in provided information. Once an order has been shipped, delivery times are determined by the carrier and are outside of our control. On average, shipments arrive within 2–5 business days, excluding weekends and holidays. For more information, please visit our FAQ page.

Returns
If you are not satisfied with your purchase, please contact us within 48 hours of delivery. Approved returns must be shipped back within 14 days of approval. Returned items must be unused, unopened, and in their original packaging. Specific return requirements, if applicable, will be listed on the product’s page. For more information, please visit our FAQ page.

Refunds
No worries, we’ll take care of everything as long as it fits the guidelines above.Most answers to general questions can be found on our FAQ page.