✔ The specialist in sealing and fluid handling products.
For over 40 years Gero's leading specialist and supplier in the Netherlands of a wide range of high quality and hydrophobic impregnation for wood, concrete, stone and metal to protect against moisture, mold, decayed concrete or corrosion and rust.
Our high-seal waterproofing products and coatings for many years to know regular customers within the government, industry, construction and offshore.
✔ Now also available for individuals.
✔ Wood Treatment » Woodseal
Optimal protection of wood / hardwood against algae, fungi and weathering.
✔ Steel-Metal Treatment » Steelseal
Optimal protection of metals such as iron and steel against weathering and chemicals.Excellent primer for rusted surfaces, maximum adhesion for coating or paint.
✔ Concrete Treatment » Hydroseal » 
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Optimal protection of old and new concrete against algae, fungi, acids, concrete rot, and weathering.New poured concrete gets better treatment by initial strength.
✔ Waterproofing surface action » Proseal » »
Optimal protection, waterproofing of concrete and ceramic tiles, surfaces, facadesconcrete against fungi and algae, atmospheric pollutions.
Moisture-resistant, moisture regulating, temperature-regulating and energy saving.