GREAT STUFF™ Pond & Stone Filler, Sealer and Adhesive

Now with the SMART DISPENSER™!


The Fish-Friendly Gap Filler

Specifically designed to help quickly and easily build beautiful water features, this polyurethane foam expands to fill gaps and cracks to help direct water to flow over the rocks in a waterfall, rather than under and in between.



  • Is black in color to blend in with stones and shadows
  • Bonds without mortar
  • Helps direct water over, not under, rocks
  • Creates a water-shedding bond for stone, rock, masonry, concrete and other building materials
  • Safe for ornamental fish and plants
  • Lasts for years in wet conditions

It's easy to work with because it:

  • All-direction dispensing
  • Can be applied to damp and dry surfaces
  • Cures in 8 hours1
  • Is UL Classified

170 ± 5°F and 50 ± 5 % RH, 1 inch bead diameter, 6 inch length. Cure rate is dependent on temperature, humidity, and size of foam bead.



Use GREAT STUFF™ Pond & Stone with the GREAT STUFF™SMART DISPENSER™ for no drips, less mess - foam stops where you stop.
Reusable for up to 30 days - use again and again.
Precise, greater control.


Down To The Details Of Great Stuff™ Pond & Stone


Product Overview


Air-Seal Audit Checklist


How To Use Great Stuff™ Pond & Stone

Read all instructions and safe handling information before you start. GREAT STUFF™ products should not to be used for filling closed cavities or voids such as behind walls and under tub surrounds.


Got a lot of GREAT STUFF™ projects on your to-do list?

Check Out Our Great Stuff™ Line Up

Great Stuff™ Insulating Foam Sealants Safe Handling

For warnings and precautions, disposal information and more, download GREAT STUFF™ Consumer Safety Information or view our safe handling videos.

If you need assistance, contact us. We're always here to help you through any project.

Download User Safety Information Download Consumer Safety Information Renseignements Sur La Sécurité Du Produit Great Stuffmc Pour Le Consommateur Sur La Sécurité Du Produit Mousse D'étanchéité Isolante Great Stuff Promc

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