CD Designs Blog
Concrete sealants are coatings applied to concrete driveways and patios to protect them from corrosion. They consist of a solid resin that is dissolved in a liquid or solvent. There are many different myths when it comes to sealants. Here we highlight the top 3 and attempt to debunk them.
Concrete Sealant Myth 1. Solids content is ALL important.
No it isn’t – It is the choice of resin, its strength, quality, and most importantly, the performance capabilities of the chosen sealant that matter. Matching the sealant for a particular purpose is the most important thing to consider.
Concrete Sealant Myth 2. Quoted coverage rates show you how good a resin is.
No it doesn’t – Many manufacturers are somewhat ‘optimistic’ with their coverage rates. The product will only spread as far as the liquid will go. Coverage will also vary depending on the porosity of the surface and also the application method.
Concrete Sealant Myth 3. Polyurethane is better than Acrylic
No, they are just different – Each have their advantages and disadvantages and are suited for differing types of project. Polyurethane is very hard wearing and has excellent chemical resistance. However it will not re-emulsify, so if there are any problems during installation it cannot be removed or recoated without mechanically abrading the surface or stripping with nitric acid – both are expensive & time consuming. Acrylics are less hard wearing and chemically resistant, but they will re-emulsify, meaning if a re-coat is needed it can just be applied over the top. Each coat cross-bonds which means it forms one solid layer no matter how many coats are applied over the years.
If your unsure about the choice of sealant or how to reseal your concrete driveway, get in touch with us, we’re always happy to help.
18th June 2012
At CD Designs, we are always on the lookout for great new concrete design ideas, and interesting new uses for concrete. We tend to throw a lot of ideas and discoveries out there, and we are sure that you – our beloved readership – are brimming with good ideas too.
Therefore, we’d like to ask you to send in your ideas to us! Have you developed an innovative new sealing technique for pattern imprinted concrete driveways? Or an exciting alternative colouring or acid staining method? Are you an eco warrior armed with tips for making concrete installations more environmentally friendly, or have you discovered a really great new product you’d like to recommend?
Alternatively, are you a mad inventor or designer who has built a concrete light aircraft, or a herd of brightly coloured concrete cows?
Whatever the case, we’d love to hear from you! If you are referencing an online article please use our contact form, otherwise send your text and images to email@example.com. You should make sure your images are cut down in size (around 100-200KB is reasonable for a good enough quality photo), otherwise they will be rejected.
Note that, due to volume of submissions, not all items can be featured.
20th December 2011
Sorry for the capital letters (and the exclamation mark!) but this is pretty exciting stuff. Concrete is exciting enough, but concrete on the moon??!?
Lunarcrete is a theoretical building material for making concrete buildings on the moon, using lunar regolith (moon-rocks and moon-dust to you and me). Erecting buildings on the moon may be a way off as yet, but (fingers crossed) it’ll happen at some point, and when it does we’ll need building materials that take the minimum of energy to produce or transport.
By using lunar regolith as the aggregate in lunarcrete, construction on the moon suddenly becomes a much simpler task. Well, we say simpler; it’s probably still quite complex.
This lunarcrete – aka mooncrete, which we think is a bit catchier – seems to offer solutions to most of the problems that need to be taken into account when you’re construction stuff on the moon. It’ll be strong, and could be further reinforced using tungsten. It would offer shielding from harmful radiation. And it could withstand some serious temperature extremes.
Like our pattern imprinted concrete driveways, lunarcrete surfaces would need to be sealed. They’d be porous, like our driveways. The slight permeability of concrete is an inescapable characteristic, hence the importance of sealing and then regularly resealing your pattern imprinted concrete driveway. In the case of lunarcrete buildings, an epoxy sealant would make it air-tight. Which, we think you’ll agree, is pretty important for a building on the moon.
9th September 2010