Easiseal Pro is a ready-to-use waterproofing compound for sealing, repairing and weatherproofing a wide range of surfaces. Ideal for roofs, gutters, flashings and more. Comes in grey or black.
Bond It Easiseal Pro is a flexible, ready-to-use waterproofing compound designed for sealing and repairing problem areas where water finds a way in. If you have searched for a bond it easiseal waterproofing compound that works without faff, this is the one. It goes on thick, bonds well to most common building substrates, and cures to a tough, weatherproof film that moves with the structure rather than cracking away from it.
It is a single-part product, which matters more than it sounds. No mixing, no ratios to get wrong, no wasted material because you misjudged the pot life. Open the tub, apply it, and get on with something else. That simplicity is what makes it practical for site repairs, maintenance work and emergency weatherproofing where time is not on your side.
Where Easiseal Pro Waterproofing Compound Gets Used
The product is aimed squarely at the kind of jobs that come up regularly in roofing, general building maintenance and refurbishment. Flat roof details, parapet gutters, valley gutters, flashings, around chimney stacks, skylight surrounds, and anywhere water tends to pond or track behind a joint. It works on most mineral surfaces, metals, and many plastics, so you are not hunting for a different product every time the substrate changes.
Crack and Joint Sealing
Easiseal Pro handles fine cracks and open joints without needing a backer rod or primer on most surfaces. For larger voids, bed in some reinforcing tape or open-weave fleece before applying a second coat. The compound encapsulates it cleanly and gives the repair far better long-term movement tolerance than a simple filler would.
It is available in grey and black, so you can match the existing finish on most roof coverings without painting over the repair. The black suits felt and bitumen surfaces; the grey works well on concrete, asbestos cement sheeting and lead flashings. Both cure to a permanently flexible film that handles UV exposure and standing water without failing at the edges.
Pro Tip: On porous substrates like old concrete or crumbling mortar, dampen the surface slightly before applying Easiseal Pro — it improves adhesion significantly without needing a separate primer coat.
Easiseal Pro is used primarily in roofing and building maintenance, covering flat roof repairs, gutter sealing, flashing repairs around chimneys and dormers, skylight surrounds, and leaking joints in valley gutters. It is well suited to maintenance contractors, property managers and general builders dealing with water ingress on both domestic and commercial buildings. The compound is also used on below-ground structures for damp sealing where a flexible, waterproof membrane layer is needed in a single application.
Best For
Flat roof repairs and detailing
Gutter and valley gutter sealing
Flashing repairs around chimneys and skylights
Crack and joint sealing on roofs and walls
Emergency weatherproofing repairs
Below-ground damp sealing
Compatible Surfaces
Concrete and render
Asbestos cement sheeting
Lead and other metal flashings
Bitumen and felt roofing
Brick and masonry
Most rigid plastics
Key Properties
Single-part, ready to use
Permanently flexible when cured
UV and weather resistant
Bonds without primer on most surfaces
Available in grey and black
Reinforceable with open-weave tape for larger repairs
Not suitable for: Not recommended for continuous water immersion or use on surfaces subject to heavy foot traffic without a protective topping coat. Not suitable for application onto wet or frosted surfaces.
Surface preparation makes the difference here. Remove loose material, dirt, grease and standing water before you start. Old bitumen coatings and paint need to be sound — anything flaking off will take the repair with it. Dry conditions are best, though the product will tolerate a damp surface as long as there is no pooled water sitting on it.
Apply with a brush, roller or trowel depending on the area size and access. Work it well into cracks and joints on the first coat, then allow to skin over before applying a second coat. For any crack wider than about 3mm or a joint under movement stress, bed in a strip of reinforcing fleece between coats. This is standard practice and takes an extra ten minutes, but the repair will outlast anything done without it.
Remove all loose material, dirt, moss and flaking coatings from the repair area
Ensure the surface is dry or just damp — no standing water
For cracks wider than 3mm, cut back to sound edges and rake out any debris
Apply the first coat of Easiseal Pro using a brush or trowel, working it firmly into the surface
For joints or cracks under movement stress, press reinforcing tape or open-weave fleece into the wet first coat
Allow the first coat to skin over — typically a few hours depending on temperature and humidity
Apply a second coat over the full repair area, ensuring complete coverage and no pinholes
Leave to cure fully before exposing to rain or foot traffic
Does Easiseal Pro need a primer before application?
On most common building substrates including concrete, metal and bitumen felt, no primer is required. Very porous or dusty surfaces benefit from a light dampening with water or a diluted PVA coat first, which improves adhesion without adding a separate priming step.
What is the difference between the grey and black versions?
The chemistry is the same. The colour choice is purely about matching the existing surface finish. Black suits bitumen felt, EPDM and asphalt surfaces. Grey works well on concrete, asbestos cement, lead and most mineral roof coverings. Both cure to the same performance standard.
Can I apply Easiseal Pro in cold weather?
Application is best carried out above 5 degrees Celsius. In cooler temperatures the compound becomes harder to spread and curing slows considerably. Do not apply onto frosted surfaces and avoid working in conditions where overnight temperatures are expected to drop to freezing before the first coat has had a chance to cure.
Easiseal Pro is a polymer-modified waterproofing compound formulated to cure to a tough, flexible membrane. It is resistant to UV degradation, standing water and the thermal movement typical of exposed roof surfaces. The single-part formulation requires no catalyst or hardener, making pot life management irrelevant on site. It can be reinforced with open-weave fabric between coats to bridge larger cracks and improve tensile performance across moving joints.
Brand
Bond It
Product Name
Easiseal Pro Waterproofing Compound
SKU
BDES GR/BL
Colours Available
Grey, Black
Application Method
Brush, roller or trowel
Number of Components
1 (single-part)
Minimum Application Temperature
5°C
Cure Type
Air-curing flexible membrane
Suitable Substrates
Concrete, metal, bitumen, asbestos cement, brick, masonry, most rigid plastics
Reinforcement Compatible
Yes, open-weave tape or fleece
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