Primeseal is more than a primer and more than a sealer. In fact it is the ultimate in both roles. As a primer for membranes it provides an exceptional bond coat for almost all porous substrates. It is also a great sealer and waterproofing coating in its own right where flexibility is not required. It is suitable for use on most substrates including concrete, cementitious screeds, timber, fibre cement sheeting, plaster board, timber and bitumen.
Description
Duram Primeseal MC (‘Moisture Cure’) is a water based, epoxy waterproof membrane. Duram Primeseal MC is a high performance, versatile, two-part, water based, hydrostatic pressure resistant, waterproofing barrier membrane coating suitable for most types of porous and semi-porous surfaces including green (newly laid) hardened concrete and damp surfaces. Primeseal MC cures to form a strong, waterproof, hydrostatic pressure resistant and water vapour pressure barrier and is formulated for application on to damp, newly laid concrete and most other construction surfaces. Primeseal MC can withstand up to 25 metre head of water pressure. Primeseal MC’s versatility makes it also ideal as a primer for waterproofing membranes, paints, industrial coatings and as a bridging coating for normally incompatible coatings. Primeseal MC’s standard colour is light grey but is also available in off-white and black (minimum quantities apply). Primeseal MC has very low VOCs and meets the ‘Green Star’ enviromental criteria.
Uses
Duram PRIMESEAL MC is formulated for demanding waterproofing, sealing and priming applications including:
– Waterproofs and seals damp and green (newly laid) hardened concrete.
– Waterproofs negative (inside) surfaces.
– Waterproofs positive (outside) surfaces.
– Waterproofs above and below grade surfaces.
– Low water vapour pressure barrier. (Prevents or minimises bubbling of membranes due to vapour emmisions from the
substrate).
– Waterproofs basements, retaining walls, lift wells, cellars etc.
– Waterproofs tanks and water retaining structures, i.e. concrete or cementitious structures.
– Excellent primer for subsequent Duram membranes, paints and industrial coatings.
– Seals and primes timber floors prior to applying waterproofing membranes and other coatings.
– Seals concrete floors before laying timber floors.
Suitable Surfaces
Duram Primeseal MC is suitable for most construction surfaces including:
• Concrete , green (newly laid) hardened concrete, cement, cement render, brick, block work, masonry, Hebel, timber, FC
sheeting, CFC sheeting, plasterboard and painted or coated surfaces.
• Damp surfaces – but freedom from standing, running, seeping water, saturated substrates and continual dampness is essential
COVERAGE
The stated average coverage rate may vary depending upon type, condition, porosity, texture of the surface and application technique.
As an effective waterproofing membrane or barrier against low water vapour pressure:
• A minimum of 2 coats applied at 3m² per litre per coat.
• If this coverage is not achieved in two coats, an additional coat should be applied.
• The dry film thickness should be 0.33mm.
• The waterproofing properties are enhanced when used in conjunction with suitable Duram waterproofing membranes.
Coverage per Kit Size for 2 Coats:
4 Lt. Kit - 6m²
10 Lt. Kit - 15m²
20 Lt. Kit - 30m²
As a general primer:
• 1 coat applied at 3m² to 4m² per litre per coat.
As a bitumen sealer to enable subsequent membranes or coating to be applied:
• 2 coats applied at 5m² per litre per coat.
As a sealer of a damp surface to allow the application of a polyurethane membrane:
• 2 coats applied at 4m² per litre per coat.
