---
product_id: 63057567
title: "1 x Bond It Black HA6 Silicone Sealant High Modulas safe for RTV fresh or marine salt water aquarium fish tanks - EU3 Cartridge (approx. 310ml)"
brand: "truly pvc supplies"
price: "€ 14.55"
currency: EUR
in_stock: true
category: "Truly Pvc Supplies"
url: https://www.desertcart.it/products/63057567-1-x-bond-it-black-ha6-silicone-sealant-high-modulas
store_origin: IT
region: Italy
---

# Marine & freshwater safe UV & ozone resistant High modulus, rigid seal 1 x Bond It Black HA6 Silicone Sealant High Modulas safe for RTV fresh or marine salt water aquarium fish tanks - EU3 Cartridge (approx. 310ml)

**Brand:** truly pvc supplies
**Price:** € 14.55
**Availability:** ✅ In Stock

## Summary

> 🖤 Seal it like a pro — sleek, strong, and built to last!

## Quick Answers

- **What is this?** 1 x Bond It Black HA6 Silicone Sealant High Modulas safe for RTV fresh or marine salt water aquarium fish tanks - EU3 Cartridge (approx. 310ml) by truly pvc supplies
- **How much does it cost?** € 14.55 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/63057567-1-x-bond-it-black-ha6-silicone-sealant-high-modulas)

## Best For

- truly pvc supplies enthusiasts

## Why This Product

- Trusted truly pvc supplies brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **UV & Ozone Proof:** Engineered to resist UV rays and ozone exposure, maintaining integrity and appearance over time.
- • **Aquarium-Grade Safety:** Perfectly safe for both marine and freshwater tanks, ensuring your aquatic friends thrive without compromise.
- • **Clean & Reliable Seal:** No leaching fungicides or oils, ensuring a non-toxic, waterproof bond that lasts with a quick 4-hour full cure.
- • **Versatile Application:** Ideal for glass, ceramics, anodised metals, timber, and many plastics—your go-to sealant for diverse projects.
- • **Durable Under Pressure:** High modulus formula delivers a rigid, long-lasting seal that withstands extreme temperatures and tough environments.

## Overview

Bond It Black HA6 Silicone Sealant is a 310ml high modulus, UV and ozone resistant sealant designed for marine and freshwater aquarium use. It provides a rigid, waterproof seal safe for aquatic life, cures fully in 4 hours, and is suitable for glass, metals, timber, and plastics. Ideal for demanding sealing tasks requiring durability and non-toxicity.

## Description

For bonding bedding and sealing glass in aquarium construction. Suitable for the manufacture of in-situ gaskets and seals for pumps and pipework to prevent water ingression and as a dust and weatherproofing seal for cabinets in dirty environments or external applications. Ideal for use on glass ceramics anodised aluminium primed metals and timber and many plastics.

## Features

- Causes serious eye damage.
- Causes skin irritation.
- Marine and freshwater aquarium safe
- Unaffected by UV and ozone
- High modulus sealant - so more rigid
- Handles extreme temperatures and is non-slumping
- No leaching fungicides or oils

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00HURK3LW |
| Best Sellers Rank | 7,387 in DIY & Tools ( See Top 100 in DIY & Tools ) 966 in Adhesives & Sealers |
| Brand | Truly PVC Supplies |
| Colour | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (410) |
| Full Cure Time | 4 Hours |
| Included Components | Cartridge & Nozzle |
| Item Form | Paste |
| Item Type Name | Silicone |
| Item Weight | 0.36 Kilograms |
| Liquid Volume | 310 Millilitres |
| Manufacturer | Bond-It |
| Manufacturer Part Number | BDHA6BL_SML |
| Material | Silicone |
| Model Number | BDHA6BL |
| Number of Items | 1 |
| Product Warranty | 1 year. |
| Surface Recommendation | Glass |
| Unit Count | 310.0 millilitre |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Truly PVC Supplies
- **Colour:** Black
- **Full cure time:** 4 Hours
- **Item weight:** 0.36 Kilograms
- **Liquid volume:** 310 Millilitres

## Images

![1 x Bond It Black HA6 Silicone Sealant High Modulas safe for RTV fresh or marine salt water aquarium fish tanks - EU3 Cartridge (approx. 310ml) - Image 1](https://m.media-amazon.com/images/I/41fsZCc+4MS.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Will this product adhere to slate   ?**
A: We made a pleco cave with slate and HA6 Translucent . It lasted 7 years in our Discus tank at 30c before the first bits started to come apart. We have just taken it apart and are planning of rebuilding it using HA6 again.

**Q: Will it stick to a preformed hard plastic pond?**
A: Difficult one to say as it entirely depends on the type plastic. It would not stick well to polyethylenes or polypropylenes, but may be ok with certain types of PVC. Bond It recommend you do a test patch in a small area to check adhesion to this kind of surface before using it fully.

**Q: Can this be used on ldpe pond liners please?**
A: I would look for a special bespoke glue for a pond liner, not a job to be done twice.

**Q: Will it stick to pond liner**
A: Not to rubberised liners. Excellent for building and resealing glass aquariums/ tanks.

## Frequently Bought Together

- 1 x Bond It Black HA6 Silicone Sealant High Modulas safe for RTV fresh or marine salt water aquarium fish tanks - EU3 Cartridge (approx. 310ml)
- BOND IT CLEAR HA6 RTV Silicone Sealant Marine Aquarium Safe Water Fish Tank Adhesive
- TAIGA Black PU Landscape Pond & Waterfall Foam 750ml - 'Gun-Applied'

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-05-14*