Primeseal MC (Moisture Cure) Primer & Sealer

Recommended Use With:

1. Multithane Range. As a primer, Bonding agent and top or base coat.

2. Duram 195 (Solvent Base) As a primer, Bonding agent and top or base coat.

3. Azcothane Range (Water Base) As a primer, Bonding agent and top or base coat.

4. Durabit Reo (Fiber Re-enforced) Or Durabit EF (Extra Flexible).

Used as a waterproofing barrier for both Positive & Negative applications on its own when applied 3 Coats or more.

Product 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.

Product Application Guide:

IMPORTANT: Please read the PDS. • Prepare surfaces, clean and clear of oil, flakes cracks etc. • Primeseal MC comes in 2 equal parts. • Premix each part in its container, a good mix, electric mixer recommended. • Mix only the required amount together using a measuring jug. • Give it a good mix together before applying it with brush or roller. • Wait 3-4 Hours between coats. • Repeat the above process for each application. Caution: • Primeseal MC has a maximum of 1 Hour open time, when mixed together and can not be saved for later use. • Seal tight the remaining parts in their container for another mix and later use.

Duram Primeseal MC 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.

• 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 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:
  – 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 product.
• Primeseal MC is not a permanently trafficable membrane, but 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.