Skip to product information
1 of 1

Fish Safe Marine Sealant

Fish Safe Marine Sealant

Regular price £17.99
Regular price Sale price £17.99
Sale Sold out
ex VAT. Shipping and VAT calculated at checkout.

Heavy-duty underwater sealant for instant, safe repairs – even while submerged.

✅ Bonds instantly underwater without removing fish
✅ Solvent-free and isocyanate-free – safe for ponds and aquariums
✅ Adheres to a wide range of materials including rubber, vinyl, wood, and more

More Information

Use this pond calculator to work out the exact litres of paint needed.

Gold Label Underwater Sealant is a professional-grade solution for repairing and sealing in aquatic environments. Perfect for both pond and aquarium use, it works instantly on wet surfaces and can be applied underwater without needing to remove fish. Its non-toxic, solvent-free formulation makes it safe for all aquatic life.

This high-quality, heavy-duty sealant is perfect for sticking together a wide variety of materials including, various forms of rubber, vinyl, plastic, ceramic, concrete, wood and much more.

For detailed instructions and safety information, please refer to the product data sheet.

How to Use

Clean all surfaces to remove grease, algae, or other debris.

Apply the sealant directly to the surface needing repair or bonding.

For areas where movement may occur, leave at least 5mm bead thickness between materials.

Curing Times:

Initial tack: 2–3 hours

Paintable: after 4 hours

Full cure: 24 hours (may continue hardening for up to 7 days)

Temperature: Do not apply below 10°C.

When used with livestock present, ensure the product cannot be ingested during curing.

For detailed instructions and safety information, please refer to the product data sheet.

Technical Information

Available in Black or Clear 290ml tubes

Solvent-free and isocyanate-free – safe for aquatic environments

Compatible with materials such as:

Rubber (including butyl and EPDM liners)

Vinyl

Plastic

Ceramic

Concrete

Wood

For detailed instructions and safety information, please refer to the product data sheet.

Delivery

Speedy delivery is our promise! Expect your order to arrive promptly, typically between 24-48 hours, thanks to our efficient service.

View full details
  • ☑️ Easy to apply

    The easy-to-use formula applies like regular paint, with a brush or roller, for a professional-looking finish.

  • ☑️ Quick drying

    Enjoy minimal downtime - apply the second coat next day and refill your pond in just 7 days.

  • ☑️ Safe for fish

    Our non-toxic formula ensures no harmful chemicals leach into the water once cured, keeping your fish happy and thriving.

  • Before

  • After

  • Before

  • After

See A1 Pond Paint in action

Real ponds, real results...

Read what some of our customers think of our great pond paint after they've used it

★★★★★ Mr Harry W

Excellent product

Excellent product easy to apply very good coverage. Wouldn’t hesitate in recommending this product to anyone considering a pond refurbishment or a new pond.

★★★★★ Mr Pete F

Easy to use

I was so pleased with your product and ease of its application, that I would like to share photos of our finished water feature.
Many thanks for your assistance in choosing the right product.  I will recommend you to anyone who I know attempting this type of project.

★★★★★ Mr Sheldon B

Best product

For waterproofing any project that will hold animals or fish the best product I have found is A1 Pond Paint from Antel. It is completely safe once dried and that is what makes it worth the money. It is water based but sets like a resin. It's a two part paint so mix small batches at a time because it actually goes a long way. I have built two large grow beds for a large aquaponic system (Pictured below) and a few other bits and I still have about half a tin left.

★★★★★ Mr Noge M

Stunning

Just wanted to say thanks to Julian for his advice. Never painted a pond and his help was very much appreciated. Must say the difference before and after is stunning!

FAQs about our Pond Paint

Is Antel A1 Pond Paint safe for fish and other aquatic life?

Yes, Antel A1 Pond Paint is completely fish-safe once cured. After 7 days of curing, the paint becomes chemically inert and poses no risk to your pond's inhabitants.

What surfaces can I use Antel A1 Pond Paint on?

Antel A1 Pond Paint is versatile and adheres well to various surfaces commonly found in ponds and pools, including concrete, masonry, fiberglass, and marine plywood.

Can I use Antel A1 Pond Paint on my pond liner?

No, Antel A1 Pond Paint is not suitable for direct application on pond liners.

How many coats of paint do I need?

Two coats of Antel Paint for Ponds are recommended for optimal coverage and waterproofing.

How long does it take for the paint to dry?

Our waterproof pond paint dries quickly. It's touch dry in 6 hours and hard dry in 12 hours at a room temperature of 20°C.

How long should I wait before refilling my pond after painting?

Allow 7 days for the paint to fully cure before refilling your pond. This ensures the paint is completely cured and safe for aquatic life.

How much paint will I need?

1ltr of Epoxy Pond Paint covers approximately 6-7 square meters on a smooth, non-porous surface. However, the coverage can vary depending on the surface porosity and application thickness. If unsure, it's best to purchase slightly more paint than you think you might need.

Need help choosing your perfect Pond Paint?

Our friendly team is here to assist! Whether you're unsure which colour would best suit your pond or have questions about using A1 Pond Paint, we're happy to help.