Pondmax Ideal Seal MS290 Black Underwater Sealant Wet/Dry Adhesive - 290mL 3 pack This provides a physical barrier

This provides a physical barrier

preventing migration of the perlite to the top of the medium

Treats (L): Up to 30

Effective in a blazing fast 30 seconds and will last 30 minutes

Pondmax Ideal Seal MS290 Black Underwater Sealant Wet/Dry Adhesive - 290mL 3 pack This provides a physical barrierIdealseal MS290 is the ultimate all round sealant and adhesive offering a durable, flexible, environmentally friendly alternative to traditional sealants, adhesives and putty, and will even cure underwater. MS290 has excellent adhesion to dry and wet surfaces without the risk of shrinkage or bubbling and will even cure underwater. Once cured it is paintable and resistant to chemical, fungal and bacterial attack. Tested to EN1186, EN13130, CEN TS 14234