Primeseal MC
high performance, versatile, two-part, water based, hydrostatic pressure resistant, waterproofing barrier membrane coating.
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. It is formulated for application on damp, newly laid concrete and most other construction surfaces.
Primeseal MC is suitable for potable (drinking water) applications and can withstand up to 25 metres 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 it is also available in off-white and black (minimum quantities apply). Primeseal MC has very low VOCs and meets the ‘Green Star’ environmental 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 emissions from the substrate)
- Waterproof basements, retaining walls, lift wells, cellars, etc.
- Waterproof 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.
Additional Uses
- A general and universal primer on most types of substrates for membranes, paints and industrial coatings
- A sealer coats over bitumen surfaces to allow the application of solvent and water-based waterproofing membranes and other coatings
- A sealer over damp surfaces is used to allow the application of urethane-based waterproofing membranes
- An inter-coat bridging coating allows the application of incompatible coatings
- A primer and sealer of concrete, cement, cement render, timber, brick, block work, FC sheeting, CFC sheeting, plasterboard and bituminous surfaces
- A primer over bituminous and torch-on membranes so that they can be top-coated or re-membraned
- Top coat over Duram Crystoflex to provide an attractive colour and finish
Limitations
Primeseal MC, being an epoxy, has low flexibility and is NOT designed to bridge live cracks or expansion joints.
Primeseal MC can be effectively used for sealing inside (negative) wall surfaces, but this should method should only be employed if waterproofing the outside (positive) surfaces is not feasible or inaccessible.
Application Temperature Limitations
- Between 10ºC and 35ºC
Curing Limitations
- The temperature must exceed 10ºC, and relative humidity must be less than 85%
- If these conditions are not present, then artificial ventilation and heating should be used
- In confined, enclosed areas, ventilation should be used to circulate air to enable the evaporation of water from the product.
Primeseal MC is not a permanently trafficable membrane but is suitable for service or trade foot traffic. Where the product is to be used in hydrostatic water pressure applications, the surfaces on which it is applied must be and remain structurally sound and stable.
Benefits and Advantages
- Primeseal MC is user and environmentally friendly, solvent-free and has a negligible odour
- Very low VOCs and meets the ‘Green Star’ environmental criteria
- Can be applied to green (newly laid) hardened concrete
- Can be applied to damp surfaces
- Is a barrier against low water vapour pressure
- Suitable for contact with potable (drinking) water. Conforms to AS4020-2000
- Non-toxic and non-flammable
- Can be applied in sensitive areas
- Withstands up to 25 meter head of water
- Easy to apply by brush, roller, squeegee and spray
- Quick drying
- Has excellent adhesion
- Excellent water barrier
- Can be used as a primary waterproof barrier on rigid surfaces
- It will not re-emulsify
- Seals over most existing coatings
- Can be used to seal both the negative and the positive sides of the substrate
- Compatible with all Duram waterproofing membranes and floor coatings
- Acts as a bleed sealer over bituminous surfaces
- Excellent primer over torch-on waterproofing products
Colours
When parts A and B are mixed and cured to a semi-gloss finish, the standard colour is light grey, but it dulls with age. It is available in 4, 10, and 20-litre kits.
Primeseal MC is also available in black and other colours by special order, and minimum quantities may apply.
Product specification sheet
Primeseal MC product specification sheet opens in a new windowManufacturer
Duram
