Kerdi Fix is a silane-modified polymer-based bonding and sealing compound made by Schluter. Even though it’s mostly used as a sealant, you can use Kerdi Fix as a joint compound.
The manufacturer of this product recommends that it be used to bond the Kerdi membrane and Kerdi band.
These two waterproofing products are mostly used in showers and high-moisture areas. Kerdi Fix can also be used on a wide range of materials, from plastic to concrete.
Even though Kerdi Fix has many uses and is very effective at bonding Kerdi materials and sealing, there are instances when you may need its alternatives.
If you are hunting for a Kerdi Fix alternative, here are some options worth considering.
Why Would You Be Interested in Kerdi Fix Alternatives?
There are a couple of reasons why you may be looking for a Kerdi Fix alternative. These reasons include;
1. Unavailability – Out of all products made by Schluter, it’s surprising how Kerdi Fix is the only one that’s not available in most tile shops. Schluter has done a commendable job supplying Kerdi membrane and band in shops across the country.
The same can’t be said for Kerdi Fix. If you have a project requiring a bonding or sealing compound, you have no option but to look for Kerdi Fix alternatives when you don’t find it in the shops.
2. Long Waiting Time – In case you don’t find Kerdi Fix in a store near you, there is always the option of ordering it online and having it delivered.
Though convenient, buying Kerdi Fix online requires you to wait two to three days for delivery. If you have already started waterproofing a shower, are you willing to wait three days for Kerdi Fix?
3. Price – When you compare the price of Kerdi Fix to other bonding and sealing products, it’s quite expensive. Building or renovating a property uses up a lot of money.
Therefore, we can’t overlook the importance of saving a few bucks on products and equipment. One of the most common reasons people look for Kerdi Fix alternatives, as you will see later on, is the price.
Sikaflex – The Most Popular Kerdi Fix Alternative
Whether Kerdi Fix isn’t available in a store near you or you are interested in something that costs way less, you should have a look at Sikaflex.
Sikaflex is a popular adhesive and sealant. Just like Kerdi Fix, Sikaflex is a silane polymer. Therefore, it has almost the same properties as Kerdi Fix.
This isn’t the only similarity these two bonding and sealing products share. Sikaflex also works on a wide range of materials. Other than construction, Sikaflex can also be used in the vehicle industry.
If you are interested in a Kerdi Fix alternative, it’s evident that Sikaflex offers similar benefits to the above. And here is the best part about Sikaflex.
It is way cheaper than Kerdi Fix. In case you need a lot of bonding compounds, go for Sikaflex. You will save a lot of money. Plus, it’s available in many shops. You won’t have to wait for it to be delivered.
Sikaflex is considered a substitute for Kerdi Fix by experts and DIYourselfers in the construction industry. You can use it confidently, knowing it will get the job done.
Additional Kerdi Fix Alternatives
Sikaflex is the best Kerdi Fix alternative. But if you also don’t find Sikaflex at a store near you, here are additional alternatives you can consider.
1. Gorilla Waterproof Patch & Seal
If you are interested in the sealing capabilities of Kerdi Fix, you can consider the Gorilla seal spray as a suitable alternative. It is stored in a spray can for easy application.
This product creates a rubberized coating that seals moisture, air, and other elements. It is UV and temperature resistant just like Kerdi Fix and can be used outdoors.
2. Sof Sole Silicone Waterproofer
Unlike other Kerdi Fix alternatives, this sealant is made using a durable silicone formula. You can use this product to waterproof surfaces in high-moisture areas. Just like Kerdi Fix, it is versatile and can be used on many surfaces.
3. Cal-Flor Eurobond D3 Floor Glue
It’s understandable why people may be skeptical about using glue for bonding floor materials. However, this isn’t ordinary glue. It’s formulated to be more resistant to water damage than most types of glue.
You can use the Cl-Flor glue in wet areas such as bathrooms. But you will have to give it time to dry to achieve a stronger bond.
4. Loctite Clear Silicone
This is a popular waterproof sealant that is used for many DIY applications. You can use it to seal door frames, weatherstripping, vents, and anywhere you are worried about water damage.
Loctite clear silicone bonds well to vinyl tiles, fiberglass, wood, glass, and many other materials. This silicone sealant is ideal for smaller projects.
5. DAP Adhesive Exterior Silicone Sealant
This is a Kerdi Fix alternative that performs exceptionally well in outdoor applications. It’s equally as versatile and can be used to fill openings within your home. It’s made using a professional-grade polymer that can withstand rain, humidity, and extreme temperatures.
These five aren’t the only Kerdi Fox alternatives in the market. Hundreds of sealants and bonding agents work similarly to Kerdi Fix.
Before buying an alternative, it’s imperative to go through reviews and product descriptions. This will help you make an informed choice.
Kerdi Fix Alternatives May Not Be Compatible with Other Kerdi Products
Schluter often recommends Kerdi Fix be used to bond Kerdi membrane and band, which are used to waterproof a shower or any high-moisture room.
As many Kerdi Fix alternatives, there may be on the market. It’s important to know that some of these substitutes may not be compatible with the Kerdi products.
We have always advised our readers to stick to products from the same brand to avoid incompatibility problems.
The formula used in some of these substitutes is completely different. For instance, some are made using silicone which is the exact opposite of the silane polymer in Kerdi Fix.
Out of all the alternatives, we would highly recommend Sikaflex because its formula is almost the same. Even when Sikaflex is used on the Kerdi membrane, the odds of incompatibility issues arising will be minimal.
Why is Kerdi Fix So Difficult to Find?
Many people have expressed their frustrations online regarding how difficult it is to find Kerdi Fix. It’s probably why you may be interested in its alternatives.
Unlike other Schluter products, Kerdi Fix is not very popular. Many builders, especially DIYourselfers, are only aware of the Kerdi membrane and band. Retailers of Kerdi products lean more towards popular products. That’s why it can be difficult to source Kerdi Fix.
It’s only from online retailers that you can be guaranteed to find Kerdi Fix. The problem with buying Kerdi Fix online is that it takes time for the product to be delivered to your home.
In some areas, it can take up to five days. If you are in a hurry to complete a project, waiting for such a long time may not be in your best interest.
The good news is that nowadays, there are many Kerdi Fix alternatives. There are substitutes out there that are made using similar silane-modified polymers. Sikaflex is an excellent example.
Does Schluter Recommend Any Kerdi Fix Alternative?
So far, Schluter hasn’t recommended a Kerdi Fix substitute. And by the looks of it, that’s not going to happen. There is no way a company would recommend similar products from other companies. That would be poor marketing.
Schluter only recommends Kerdi Fix as the best bonding and sealing compound. They wouldn’t even advise you to use another bonding agent with the Kerdi membrane and band.