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A brief understanding of the role of primers is helpful when choosing a primer.
1. Priming creates a surface with even absorption so topcoats dont appear patchy. Bare substrates or dirty walls usually have variations in their absorption level and without a sealer/undercoat this can show through in the topcoats as uneven colour and varying sheen levels. MUROBOND Primer is a great all round primer for this job.
2. Priming makes topcoats go on easier and spread further. Hence omitting a primer will not necessarily save on the overall cost of a job.
3. Priming increases topcoat adhesion. This may not be noticeable at first but can mean peeling paint in the future. Specialised primers such as ZINSSER Smart Prime and MUROBOND Primer can be used to adhere to oil based enamels or glossy, hard to stick to surfaces.
4. Primers can enhance topcoat colour. A coat of primer is useful when trying to paint over strong colours. MUROBOND white Primer has great hiding power for this. It is also common to tint primers to grey, or half strength of the top coat colour, underneath strong coloured topcoats to help give the colour more opacity. For example MUROBOND Primer is often tinted towards the topcoat colour when used under Murobond Murowash.
5. Priming can be used to seal in stains such as mould, watermarks, smoke, oils, tannins, efflorescence and rust. Zinsser Smart Prime is a specialised primer for this purpose.
A unique zero VOC water-based primer that sticks to all surfaces and blocks all stains. Particularly useful on glossy surfaces, plastics, vinyl, laminated formica, fibreglass awnings, aluminium trim & ceramic tiles.
A versatile primer for interior and exterior use on gyprock, timber, cement sheet, masonry, vinyl, oil based paints (with light sand), aluminium and laminates (with good sand).
A specialised sealer for binding chalky, powdery or very porous masonry substrates. It forms a film that binds the surface and seals it ready for top-coats.
MUROBOND Metal Primer is a water based anti corrosive primer with red iron oxide and flash rust inhibiters suitable for ferrous and non-ferrous metals.
Water-based and zero VOC, this product creates a strong bond to masonry surfaces before applying Mineral Silicate Paint.
A liquid bonding agent which can be added to Lime Plaster Basecoat to give extra adhesion to substrates. Add 1 part to 4-10 parts water depending on specifications
