Shipping September 30
To meet high demand we’re upgrading our facilities.
Orders received will ship starting on September 30th
Ultragum Sale
Solvent-free Ultragum liquid waterproofing for foundations, basements & flat roofs. UV-stable, flexible to -25°C, dries and sets in 20 minutes.
From $118.24 CAD
Buy Ultragum from $118.24 CAD
High-Performance Liquid Waterproofing
Ultragum is a versatile, solvent-free waterproofing membrane engineered for reliable performance in even the most challenging conditions. Its advanced Smart Drying Technology ensures rapid film formation — within just 30 minutes — even in low temperatures and high humidity.
Once cured, Ultragum remains flexible in cold climates, resists UV rays, and withstands prolonged water exposure, industrial environments, and seaside conditions. The seamless application adapts easily to complex geometries and requires only minimal thickness, making it ideal for a wide range of projects.
Weight: 5 or 20 kg
For additional inquiries, please submit our Contact form.
- All-Weather Waterproofing: Effective at low temperatures and in high humidity, ensuring reliable waterproofing in diverse conditions.
- Rapid Setting: Resists washout, bleaching, and wrinkling within 30 minutes of application, even in foggy or dewy conditions.
- Smart Drying Technology: Maintains proper application properties in low temperatures and high humidity.
- Cold Flexibility: Remains flexible in low-temperature environments.
- Exposure Resilience: Designed to be left exposed without degradation.
- Environmental Resistance: Withstands water stagnation, UV rays, and exposure to atmospheric, industrial, and coastal conditions.
- Efficient Waterproofing: Allows for thin-layer waterproofing, providing a seamless protective barrier.
- Joint-Free Layer: Forms a continuous, joint-free layer that conforms to complex substrate shapes.
- User-Friendly: Ready to use and easy to apply, suitable for various applications.
- Eco-Conscious: Solvent-free formulation for an environmentally friendly approach.
- Certified Performance: Holds European Technical Assessment - ETA n° 17/0769 when used with Acriflex Pro or Acriflex Rapido waterproofing, reinforced with Polites TNT.
Wash out resistance: 30 min (up to 5 °C and 98% R.H.)
Break Elongation: 336 + 67 % (ISO 527-1)
Tensile Strength: 1.0 + 0.3 MPa = N/mm2 (ISO 527-1)
Weathering test: 100 days a 80°C (EOTA TR 011 - pass)
Adhesion test for direct traction
on concrete: 0.53 N/mm2 (UNI EN 1542 - break type A/B)
Dry time: 4 hours
What is Ultragum used for?
It's a solvent-free, bituminous liquid waterproofing membrane for foundations, basements, flat roofs, and terraces. Ideal for new builds and restoration.
Do I need a primer?
It depends on the substrate. No primer is needed on untreated wood.
Use Grip Primer on:
• Metal surfaces (before applying Ultragum)
• Painted metal (test adhesion first)
- On smooth/dry concrete
- Treated, painted or sealed wood
Use Vapostop when:
• The substrate is damp (but not wet)
• To prevent blistering or detachment
- On damp or rough concrete
Use WATstop when:
• The substrate is affected by rising damp
Use SBS-Bond when:
• The substrate is bituminous sheathing
How is it applied?
By brush, roller, or spray gun. Two coats recommended. Can be reinforced with Polites TNT mesh for high-stress areas.
Can it be used in cold weather?
Yes — it remains flexible even in cold weather, making it ideal for Canadian winters.
Is it UV-resistant?
Yes — it withstands prolonged UV exposure without degradation.
Can I use it on wood?
Yes — on dry, stable, untreated wood. On joint-heavy boards, reinforce with a sandwich system (Ultragum + Polites TNT + Ultragum).
Questions? Contact us for answers!


