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Dunlop Blog - DunlopMan

Here is the Dunlop blog - DunlopMan. We take some of the best tweets we get and turn them into helpful tips and advice.

 

Dunlopman says...

Before tiling with a cement-based tile adhesive, a number of backgrounds require priming for a number of reasons. These include reducing absorbency which could cause rapid loss of moisture from within the tile adhesive resulting in poor hydration of the cement, reducing the risk of chemical reaction between the substrate and the tile adhesive i. e. with cement-based adhesive for calcium sulfate backgrounds.
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Dunlopman says...

The sun is out (well some of the time) and the heat is on, so of course it’s that time of year when decorators are asked to prepare and paint external surfaces. Cracks and crannies in walls, steps, window ledges and door frames can all require extensive preparation work before painting can begin. But what makes external preparation different from preparation of internal walls, ceilings, skirting boards and window frames? Well for a start external areas are effected by the elements – wind, rain and frost – meaning any preparation products and finishes must be able to stand up to whatever the British weather throws at it. For example, as any good decorator knows, any type of gypsum plaster or filler would not be suitable as it absorbs water and would break down.
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Dunlopman says...

Thanks for your question Pete! This is a common problem for many tradesmen, especially when tiling bathrooms or wet rooms, but luckily it is quite easy and simple to solve – with the right products of course! For going over an electric underfloor heating mat system we would recommend using our LX-360 Fibre Leveller. This is a great product for this application because it can be used from 3mm up to 60mm, and because it is flexible and fibre reinforced it can cope with movement of the background and thermal changes that occur with underfloor heating systems. Before laying the electric underfloor heating mat, it is crucial to ensure that the background you are going onto is dry (less than 75% relative humidity), sound, clean and free from dust, grease of other contaminants. Depending on what background surface you may need to prime the surface with Dunlop SBR Bonding Agent before laying the mat.
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Dunlopman says...

A decorators caulk which cracks when painted over is a decorator’s worst nightmare, but unfortunately it’s an all too common problem. Caulking is an age old practice for filling joints which require overpainting, such as door frames, skirting boards, or ceiling lines and is pretty much an essential job for all decorating project. Most decorators these days use a standard acrylic filler, as they are the easiest to work with, providing a neat, clean seal. However many decorators experience problems with decorators' caulk cracking or crazing when overpainted with matt emulsion – even when they’ve been applied by the book.
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Dunlopman says...

The trouble with a gypsum-based filler is the speed at which is dries. Depending on the thickness, you’re looking at anywhere between three to 24 hours before the product is surface dry and therefore able to take wallpaper or paint. What’s more, you often get issues with slumping and shrinking, meaning you need to re-fill. Luckily speeding up this process is easy with Dunlop Pro Décor fillers with Hydroloc® technology.
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Dunlopman says...

The answer is yes we can! Luckily we have a product in our Pro Décor range which is perfect for covering Artex® and other difficult backgrounds – High Bond Renovation Filler with Hydroloc®. Because it’s made with Hydroloc® technology it relies on a chemical reaction rather than evaporation to dry, meaning that it can be painted over in super-quick time. Using High Bond is really simple, but before starting your job we would always recommend checking for the presence of asbestos before disturbing Artex®. Refer to a specialist if in doubt.
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Dunlopman says...

Thanks for your question Tom. Large format tiles are becoming more and more popular as they give walls and floors a more open look. But while they may be more aesthetically pleasing, large format tiling has its installation challenges. Tile weight is a major consideration, whether tiling onto floors or walls with large format tiles.
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Dunlopman says...

Hi Bradley, sure can! Grouting is easy – just as long as you’ve got the right product and tools. Before you start get everything ready. You will need; a standard hand trowel, rubber grout float or squeegee, and mixing bucket, plus your bag of powdered grout. Start by pouring the powdered grout into some clean cold water in a mixing bucket with clean hand trowel.
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Dunlopman says...

Hi Scott, thanks for your question. Tiling onto under floor heating or under tile heating systems may sound like a project too far – but fear not, with the right selection of tile adhesive, grout and other products your installation can be a success. We would always recommend the use of an uncoupling mat system like Dunlop Pro Cover. Laid easily on top of your heated screed with a flexible tile adhesive, the mating provides a buffer layer between the tile and the substrate and helps prevent any cracking or de-bonding of the tile due to the different rates of expansion and movement experienced by the tile and substrate.
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Dunlopman says...

Thanks for your question Peter. As you can imagine tiling a shower or wetroom is one of the most common jobs for installers and provides the added challenge of waterproofing – or tanking as it’s sometimes known. Waterproofing is absolutely crucial to ensure a water tight barrier is formed to protect against water penetration into water sensitive backgrounds such as plaster or plasterboard often found in bathrooms or wet rooms. Dunlop’s Shower Waterproofing Kit has been especially designed to make the job of waterproofing a shower area quick and easy.
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