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My Pond MS300 Underwater sealant 290ml - 24 Pack

My Pond MS300 Underwater sealant 290ml - 24 Pack

Regular price £228.67
Regular price £326.40 Sale price £228.67
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Flexible Sealant that bonds - Concrete- Stone - Wood - Glass - Metal - Rubber - Plastic - Fibreglass

No need for priming on clean surfaces that are free of grease and dust (concrete must be primed), bonds almost all liners (not laminated tarps)
High performance and environmentally friendly modified adhesive sealant with terminal silyl polyether as the base polymer. No odor, zero formaldehyde, no shrinkage after colloid curing.
Excellent weather resistance, durability and high resistance to movement. Stable bonding to various substrates such as wood, glass and metal

Avoid prolonged contact with skin, if uncured adhesive comes into contact with eyes wash with plenty of water and consult a doctor. Keep away from fire and out of reach of children

Seals best on clean/dry surfaces, will cure underwater but requires support during curing.
1 large bead is better than multiple smaller beads, no need to press completely flat, allow at least 2mm thick covering of sealant for best results.

Cure time 24 hours, this sealant skins over but takes years to fully cure in the center of large beads, this is not a problem, it is a characteristic of our sealant which remains flexible
  • Experience

    We have over 40 years of experience in the industry

  • Koi Kare


    We are koi keepers too!

    We share the same passion as our customers

  • Availability

    We are only a phone call or email away. Do not hesitate to ask us questions - we love sharing our knowledge!

  • Competitive Pricing

    We regularly review our pricing to make sure our rates are fair for our customers

Frequently Asked Questions

How Much Is Delivery?

Our delivery is free for any orders over £100.

For all orders under £100 delivery is £4.99.

How Do I Make A Return?

To start a return, you can contact us at If you have a valid return instructions will be made on how to make the return.

Please do not post a return without contacting us first.

What Is The Best Way To Contact You?

The best way to contact us is via our contact page here.

How Soon Will I Get A Refund If I Make A Return?

Refunds will be processed within 7 days of us receiving and checking the item.

Need Advice?

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