hydroflow Sealer is an polyurethane coating for our hydroflow Water Based Casting Compound

Spray onto casting once dry to increase stability of substrate and to prevent staining. Three coats are recommended, allow 1-2 hours between coats..

  • Easy to use spray bottle
  • Eco friendly polyurethane formula
  • Designed for use with hydroflow casting compound Aqua Cast water-activated casting material and other brands of eco-resins.


  Drying time    Allow 1-2 hours between coats, fully dry in 12-18 hours 
  Shelf life   indefinite



Shake well before use. Ensure all surfaces are clean and dry and apply hydroflow Sealer to your fully dried casting. Work into the surface with a brush or sponge, do not allow to pool.

Allow 1-2 hours between coats, fully dry in 12-18 hours. We recommend at least three coats for optimum protection. New layers may need to be applied periodically dependant on the casting use and situation.

Hydroflow Sealer Safety Data Sheet PDF

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hydroflow Sealer 200ml

  • Product Code: hydroflow sealer 200ml
  • Availability: 49
  • 19.80€

  • Including VAT

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Tags: hydroflow, sealer, homeware, home decor, resin art, art structure medium, art texture medium, gypsum