MyPond MS300 Black Pond Repair & Pond Window Sealant (300ml)

£24.99
Item In Stock | Usually Dispatched in 24 Hrs
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At Complete Koi & Aquatics, we endeavour to process and ship all orders placed online as quick as possible. In order for your order to be processed that day, orders must be placed by 12:00. Working days are defined as Monday to Friday (excluding Bank Holidays and Christmas holiday periods). Orders placed on Saturday, Sunday or bank holidays will be processed the next working day. We do not offer a Saturday delivery option online.

This delivery policy is strictly only valid for UK mainland delivery addresses. For other destinations please contact our head office on 01204 582105 or email in at info@completekoi.com.

For more details please read our full Delivery Policy.

We hope your shopping experience with us exceeds your expectation and that you will be delighted with your purchase.

Should you wish to return a product purchased from us, we will be happy to refund or exchange a product provided it is in fully resaleable condition. Returns should be made within a reasonable time (usually 14 days) in original, undamaged packaging.

For more details please read our full Returns Policy.

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Product Description

MyPond MS300 - The all purpose pond sealant!

  • Fish Safe
  • Cures Underwater
  • Bonds Liners
  • Perfect for Pond Window Installation
  • Bottom Drain Sealing
  • 4x Stronger than Silicone

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 odour, 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.
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