DURAM PRIMESEAL 2 PART WHITE 20 L

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Description
Duram Primeseal is a versatile two-part, water based coating suitable for most types of porous and semi-porous surfaces.
 
Primeseal has been designed for the dual roles of both a primer and a sealer.
 
As a primer, Primeseal is an excellent universal primer for all Duram waterproofing membranes, anti-slip coatings, paints and coatings. It has excellent bonding properties to most substrates and assists in the prevention of water vapour transmission fromthe substrate thereby minimising the risk of bubbles forming underneath membranes.
 
As a sealer, Primeseal exhibits excellent primary waterproofing and sealing properties and enhances the waterproofing performance
of subsequent membranes and coatings.
 
Primeseal's standard colour is off-white but is also available in black (minimumquantities apply) and generally used as a top coat over Crystoflex to provide an attractive colour in water features.
 
Primeseal has very low VOCs and meets the 'Green Star' envirnmental criteria.
 
Uses
Duram PRIMESEAL is formulated:
  • as a general and universal primer for most types of substrates
  • as a vapour transmission barrier (when applied at appropriate coverage rates)
  • as a sealer coat over bitumen surfaces to allow the application of solvent and water based waterproofing membranes and other coatings
  • as a sealer over damp surfaces to allow the application of urethane based waterproofing membranes
  • as an intercoat bridging coating to allow the application of incompatible coatings
  • priming and sealing of concrete, cement, cement render, timber, brick, block work, FC sheeting, CFC sheeting, plasterboard and bituminous surfaces
  • as a sealer against bitumen and tar based products staining grout and tiles
  • to provide good hydrostatic resistance to both positive and negative waterproofing
  • as a primer over bituminous and torch-on membranes so that they can be top-coated or re-membraned.
Suitable Surfaces
Duram Primeseal is suitable for most surfaces including:
  • Concrete. cement, cement render, brick, block work, masonry, timber, FC sheeting, CFC sheeting, plasterboard and painted or coated surfaces
  • Abraded or etched ceramic tiles - but confirmation of specific projects should be sought from the Company
  • Primeseal may be applied to superficially damp surfaces although not recommended and freedom from surface and running water and continual dampness is essential. The surface must dry to allow the product to dry.
Specification
The information contained in this product data sheet is typical but does not constitute a full specification as conditions and specific requirements may vary from project to project. The instructions should be considered as a minimum requirement but the applicator or contractor must use their skill, knowledge and experience to carry out additional works as may be necessary to meet the requirements of the project. Specification for specific projects should be sought from the Company in writing.
 
Limitations
Primeseal being an epoxy has low flexibility and is NOT designed to bridge cracks or expansion joints. Primeseal can be effective for sealing the inside wall surfaces but without guarantee.
 
Benefits and Advantages
  • Primeseal is user and environmentally friendly, solvent free and low in odour
  • Low VOCs and meets the 'Green Star' environmental criteria
  • 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
  • Excellent hydrostatic pressure resistant
  • Can be used to seal the negative and the positive sides of the substrate
  • Can be applied to superficially damp surfaces, which must become dry
  • Compatible with all Duram waterproofing membranes and floor coatings
  • Acts as a bleed sealer over bituminous surfaces
  • Excellent primer over torch-on waterproofing products
Priming and Surface Preparation
Good preparation is essential. Surfaces must be sound, stable, dry, clean and free of dust, loose, flaking, friable material and substances that may diminish adhesion.
 
General Usage:
Mix equal portions of Part A and Part B (standard mix) thoroughly to a homogenous consistency before application. Only mix enough
product that can easily be applied within 2 hours.
 
Bagging Primer Mix:
Thoroughly mix equal portion of Part A and part B of Primeseal, then add 30% water and thoroughly mix and then add sufficient 3:1 sand: cement mix to the Primeseal liquid to form a brushable or rollable consistency and apply to surface.
 
Concrete Blow-Hole Filler:
As above, but adding more sand:cement to the mix to increase its viscosity. Coat the blow-hole with the standard mix Primeseal solution and then fill hole with described viscous mixture. Allow Primeseal to dry fully before over coating.
 
Application
  • Apply by brush, roller, squeegee or spray, generally in a single coat using sufficient product to provide a uniform, solid, off-white coat
  • When priming timber, particularly particle board at least 2 coats should be applied
  • When sealing bituminous surfaces, at least 2 good coats should be applied
  • When using Primeseal as the primary sealer at least 3 coats should be applied
  • For priming of superficially damp surfaces freedom from continual dampness is essential) apply 2 coats
  • Subsequent coats should be applied as soon after the preceding coat is fully dry and best within 48 hours
  • The final coat must be uniform completely covering the surface
  • Allow Primeseal to cure for 3 to 4 days prior to filling with water when used as a primary sealer
Coverage
The stated average coverage rate may vary depending upon type, condition, porosity, texture of the surface and application technique. Generally, Primeseal should be applied at 4m² per litre per coat. Highly porous or friable surfaces may require the application of an additional coat.
 
Drying and Curing
Drying and curing of the product is affected by type, dryness and porosity of the surface, temperature, humidity, ventilation, climate conditions and application technique and therefore drying and curing can only be given as a guide. Touch dry curing time is approximately 4 to 8 hours at 25ºC and 50% RH. Damp surfaces will increase curing time and will generally be slower than had the surface been allowed to dry before applying the Duram Primeseal. Cold air and ground temperatures will increase drying times required.