Impregnating agent & waterproofing
Sails, biminis, sprayhoods and boat covers are designed to repel water. Over time, exposure to UV radiation, salt and cleaning gradually reduces their water-resistant properties.
Our professional marine impregnating agents and waterproofing treatments restore water repellency and protect marine fabrics against moisture and contamination. At Seashop, we offer high-quality solutions from Nautic Clean and Ultramar, trusted brands in marine textile protection.
Nautic Clean Ceranium CNX1000 750mlSpecial Price €39.93 Regular Price €44.02
Why waterproofing is essential
Even strong textiles lose their protective coating over time.
Without proper re-impregnation:
- Water penetrates the fabric
- Mold growth becomes more likely
- Fabric weakens faster
- UV damage increases
- Interior areas may become damp
Impregnating agents and waterproofing treatments restore the original protective layer and extend the lifespan of sails and canvas.
What can be waterproofed?
Marine impregnating agents are suitable for:
- Sails
- Biminis
- Sprayhoods
- (Engine) covers
- Outdoor marine textiles
- Sometimes hard surfaces
These treatments are designed specifically for marine-grade fabrics and treated canvas.
When should you apply an impregnating agent?
Waterproofing is recommended:
- After thorough cleaning
- When water no longer beads on the surface
- Before winter storage
- After heavy exposure to rain and UV
- At the start of a new boating season
If the fabric absorbs water instead of repelling it, it is time to reproof.
How to use impregnating agent
- Ensure the fabric has been cleaned and completely dry.
- Apply evenly across the surface.
- Avoid oversaturation.
- Allow sufficient drying time.
- Test water repellency after curing.
- Proper application ensures maximum durability and protection.
Which impregnating and waterproofing agents are recommended?
- Ultramar Sprayhood & Tent Protector: Specifically developed to restore the water repellency of marine canvas such as sprayhoods, biminis and cockpit tents. It restores the original protective layer without stiffening the fabric.
- Ultramar Outdoor Gear Protector: Designed for technical outdoor textiles and fabrics exposed to heavy weather conditions such as motorcycle gear, backpacks, shoes, outdoor jackets, sailing suits, ski pants, etc.
- Nautic Clean 25 Hydrophobic Glass Treatment: Professional glass protection solution that creates an invisible hydrophobic layer on marine glass surfaces. This treatment is designed for windows, windscreens, glass panels.
- Nautic Clean Ceranium CNX1000: An advanced protective treatment designed for hard marine surfaces. Ideal for gelcoat, painted surfaces, hard marine materials.