Composite granite sinks are primarily made up of a mixture of quartz granite particles and resin, both of which are incredibly hard-wearing and durable. The result of this is that any knocks that would usually dent, chip or scratch a regular sink will not show up on a composite sink.
Heat-Resistance—while composite sinks are heat-resistant, they aren't heat-proof. It's important to note the acrylic resin binders found in composite sinks can warp or melt when exposed to extreme heat. An example of this is when a hot pot or pan is placed directly in the sink.
Quality composite granite sinks are formed under high pressure, making them nonporous, hygienic, and resistant to heat, stains, scratches, and chips. However, cleaning and removing stains from a granite composite sink can be tricky.
A good quality sink should last 10 to 15 years, whereas a cheap sink may only last for a couple of years. Of all the widely available materials, composite sinks like quartz or granite are preferred in many homes today. This is due to their virtually stain-proof, heat-proof, impact-resistant, and scratch-proof surfaces.
Composites are non-porous – This makes them much more sanitary than granite, which can conceal bits of food and bacteria in its crevices. Composites also can withstand disinfectant products without damaging the material, unlike granite.
Yes, composite sinks can withstand boiling water. There is no issue with pouring hot water down a granite, quartz, or solid surface sink.
As with all types of sinks, granite composite kitchen sinks are heat resistant. However, they are not heat-proof, and cannot withstand extreme temperatures such as a hot pan taken off the hob and placed directly into the sink. The acrylic resin in the mix of a granite composite sink could warp or melt.
If you do notice that there are darker stains, or if you have a light-coloured sink that is showing more surface staining, you can clean these with a mixture of 50% bleach and 50% water. Dip a nylon bristled brush into the bleach solution, and use it to scrub the stains.
It is essential you avoid extreme variations in temperatures coming into contact with your sink – such as pouring out a pan of boiling water followed by ice cold water. This can cause thermal shock in composite sinks and will result in hairline cracks appearing.
Hard Water Mineral Deposits (Calcium, Magnesium, Lime)
Unless you wipe your sink dry after every use, water left behind will eventually evaporate. When water evaporates, minerals such as calcium, magnesium, and lime are left behind, bonding to the surface. These spots are called mineral deposits.
This type of sink is easy to clean
Using a non-abrasive cleaner will keep it clean. Taking care of it properly will preserve its color for many years. Keeping it clean is also important. You can use a magic eraser sponge to remove stains and a 50/50 water-bleach solution for cleaning.
Instead, it recommends bleach, Soft Scrub and a Scotch-Brite pad and warns not to leave the cleaners on the surface for more than 15 minutes. "There are certain acidic compounds such as coffee and spaghetti sauce, etc.
Composite quartz sinks are some of the most solid and robust sinks available with a superior resistance to heat and scratches. Combining their hardwearing build with a stylish design, they offer fantastic value for money and superior resistance.
'The easiest kitchen sink material to maintain is going to be one made of stainless steel, copper, cast iron or enamel because they will not support microbial growth as they are not cellulose material,' says Darren Hudema, director of training and technical services at PuroClean.
A 50% mix of water and white vinegar can be used to remove limescale deposits, ensure to rinse thoroughly after use, do not leave the vinegar in contact with the surface.
Because quartz composite sinks are not the same as solid quartz stone sinks, they don't deliver the same variation in pattern, shine (available in matte finish only), and color as natural stone sinks. Additionally, quartz sinks can be hard on dropped dishes, so be careful when you wash your fragile glasses or china!
Step 1: Run some warm water through your composite sink. Step 2: Wipe your sink with soapy water. Step 3: Apply baking soda paste to the stains. Step 4: Use a vinegar/water solution to deal with limescale or water stains.
Applying a light layer of food grade mineral oil will add a protective repellent layer to your sink - simply leave the oil on the surface for 45 minutes then buff with a cloth. Repeat the process if needed. With a granite composite sink, prevention of stain and limescale build up is key.
Quartz tends to be more affordable, and it comes in a vast array of color choices because it's basically a manmade product. Granite composite, on the other hand, although a little pricier, is indestructible as a countertop or sink because a large percent of the product is actual stone from the earth's crust.
Removing Stains and minor scuff marks
Rinse well. Also, the use of Bar Keepers Friend (directions included on bottle) will help remove stubborn stains. Finally, clean with BLANCOCLEAN to put a protective coating back on the sink's surface.
If you are concerned about water marks being left on the surface, which are more likely to appear on composite sinks of a darker colour, then wiping your sink with a lint-free cloth to dry it off should do the trick. Drying your sink after each rinse will help prevent the build-up of water stains and limescale.
Composite sinks need regular attention in order to remain sparkling clean. If stains are not dealt with in time, they can gradually build up on your sink's porous surface, making it nearly impossible to remove the accumulated film without causing some damage.
Clean, rinse and dry sink completely. To restore luster and extend the time between cleanings apply a thin, even coating of Quartz Sink Conditioner, food-safe mineral oil, or olive oil to the entire sink surface with a cloth. Remove excess with a cloth or leave overnight.
Clean the heck out of the sink, then clean it again with rubbing alcohol. Soak/dip the cups in hot water to make them more pliable, then apply a little petrol jelly around the cup.
Another abrasive you can try is very fine grain sandpaper (e.g.. 1,000 or 1,200 grit) – used wet – to gently rub away the stain. This is used very effectively on burn stains on marble so should also work well for sinks made of similar natural stone or their composites.