Best Refractory Cement (Mortar) (Buyer’s Guide)

Refractory Cement Mortar is a powder that is mixed with water to create a paste. It is used for building refractory brick, which are bricks that can withstand high temperatures. This blog post will give you the best options in terms of brands and pricing so you can get the right product for your business needs.

Best Choice

Rutland Products 211 Dry Mix Refractory Cement, 10 lbs, 10 Pound
  • Refractory mortar that is ideal for joining or repairing masonry flue tile in any gas or wood...
  • Can be used as a parge coating (thin over-coat) when building or repairing fireboxes
  • Dry mix cement, just add water and trowel into place
  • Dark grey finish
  • For interior use, rated up to 2550°F (1400°C)

This is an extremely fast setting refractory material that will not shrink or crack during firing of kilns/ovens etc. It may be poured into any type of mold to fill spaces between brick or ceramics in a kiln/oven lining. It will not rot, crack or scale and has excellent resistance to moisture penetration.

Best Selling Refractory Cement

Refractory Cement Mortar is used for many different applications, but what are the best brands? When it comes to Refractory Cement Mortar, there are two main types: general purpose and high temperature. General purpose is typically used for casting into molds or mixing with other materials. High temperature is designed for use in kilns and furnaces that reach temperatures of 2200 degrees Fahrenheit or higher.

Best No. 1
Rutland 610 Refractory Cement, 64 Fl Oz
  • Ready-to-use pre-mixed cement sticks easily to masonry in your firebox to fill in small gaps
  • Thick, smooth consistency makes this cement amazing for mortar between firebricks
  • For interior use only
  • Rated up to 2000 Degrees F (1090 Degrees C)
  • Requires minimum 500 degree F heat cure
SaleBest No. 2
Rutland Products 25 lbs Castable Refractory Cement, Taupe
  • Easily fix large masonry holes or cracks in your indoor or outdoor fireplace, stove, or other...
  • Build a solid fire pit floor or mold into custom firebrick shapes, the possibilities are endless
  • No heat cure required making your project much easier
  • 25 pounds will cast a 12" x 12" x 3" block
  • For interior or exterior use, rated to 2,200 Degrees F (1,200 Degrees C)
Best No. 3
Rutland Products 211 Dry Mix Refractory Cement, 10 lbs, 10 Pound
  • Refractory mortar that is ideal for joining or repairing masonry flue tile in any gas or wood...
  • Can be used as a parge coating (thin over-coat) when building or repairing fireboxes
  • Dry mix cement, just add water and trowel into place
  • Dark grey finish
  • For interior use, rated up to 2550°F (1400°C)

Rutland Products 211 Dry Mix Refractory Cement Mortar

Rutland Products 211 Dry Mix Refractory Cement, 10 lbs, 10 Pound
  • Refractory mortar that is ideal for joining or repairing masonry flue tile in any gas or wood...
  • Can be used as a parge coating (thin over-coat) when building or repairing fireboxes
  • Dry mix cement, just add water and trowel into place
  • Dark grey finish
  • For interior use, rated up to 2550°F (1400°C)

Product Description

Rutland Products 211 Dry Mix Refractory Cement Mortar, is a high-temperature mortar for setting firebrick and ceramic fiber refractory materials in industrial furnaces. Carbon steel, stainless steel, alloy steels, nickel alloys are compatible with this cement when properly preheated. Rutland’s dry mix Refractory Cement Mortars have been used on several major NASA projects including the space shuttle main engine test stands at Stennis Space Center in Mississippi and Johnson Space Center in Texas.

This is an extremely fast setting refractory material that will not shrink or crack during firing of kilns/ovens etc. It may be poured into any type of mold to fill spaces between brick or ceramics in a kiln/oven lining. It will not rot, crack or scale and has excellent resistance to moisture penetration.

This dry mix is best used when you need several pounds quickly for small projects where it can be mixed with water at the job site just prior to use. Rutland recommends this product over any other form of Refractory Cement Mortar because it sets up faster allowing more working time which reduces material waste due to “spills” during mixing and application. Also recommended for all types of casting applications such as sand, plaster etc., since there are no shrinkage problems associated with cast materials that produce extreme high temperatures (2400°F).

Pros

  • A very fast setting refractory material.
  • Does not shrink or crack during firing of kilns/ovens etc.
  • Best used when you need several pounds quickly for small projects where it can be mixed with water at the job site just prior to use (recommended over any other form of Refractory Cement Mortar).

Cons

  • Not recommended in long term high temperature applications such as boiler face brick work.

Recommended?

Yes, this dry mix is recommended as the best Refractory Cement Mortar for small projects. It has many great features such as fast setting and will not shrink or crack during firing of kilns/ovens etc. Rutland recommends this product over any other form of Refractory Cement Mortar because it sets up faster allowing more working time which reduces material waste due to “spills” during mixing and application (recommended for all types of casting applications).

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Cleanburn Castable Refractory Cement Mortar

Cleanburn Castable Refractory Cement - 25lb Pail
  • Fix masonry holes or cracks in indoor/outdoor fireplace, stove, or heating appliance
  • Endless possibilities for your fire pit floor or to mold into custom firebrick shapes
  • Must be heat cured and may require layering for thicker application
  • For interior or exterior use, rated to 2,700 Degrees F (~1,400 Degrees C)
  • Dry-mix cement that sets and dries as hard as fire brick

Product Description

Cleanburn Castable Refractory Cement Mortar is a high quality, pre-mixed Refractory Cement Mortar for casting all types of ceramic molds and cores. It contains no petroleum distillates or other toxic additives. This product provides long working time while maintaining consistent rheology after water has been added to the dry powder mix.

This material also resists shrinkage during drying thereby creating stable castings that are resistant to thermal shock even at elevated temperatures up to 2500°F (1371°C). Cleanburn Castable Refractory Cement Mortar is a one-to-one mix by volume and can be blended with other Cleanburn products to create special formulations.

This material has been formulated for optimal results in automatic casting equipment such as the Clean Burn MCS Molding Machine (sold separately). It is suitable for use on all types of refractory molds including green sand, ceramic shell, aluminum or magnesium forms and permanent metal molds. This product should not be used below grade temperatures due to its relatively low thermal conductivity.

Pros

  • High quality, pre-mixed Refractory Cement Mortar for casting all types of ceramic molds and cores.
  • Contains no petroleum distillates or other toxic additives.
  • Provides long working time while maintaining consistent rheology after water has been added to the dry powder mix
  • Resists shrinkage during drying thereby creating stable castings that are resistant to thermal shock even at elevated temperatures up to 2500°F (1371°C).
  • One-to-one mix by volume and can be blended with other products to create special formulations.

This product should not be used below grade temperatures due to its relatively low thermal conductivity.

Cons

  • Not suitable for below grade temperatures.

Recommended?

Yes. This product is ideal for those looking to create a solid, stable cast mold. The high quality and pre-mixed Refractory Cement Mortar provides an optimal working time with consistent rheology after water has been added to the dry powder mix. Cleanburn Castable Refractory Cement Mortar resists shrinkage during drying which creates a more durable final casting that is resistant even at elevated temperatures up to 2500°F (1371°C).

This material can be blended with other materials by volume or purchased separately in 25lb pails making it easy to work with depending on your needs. Moreover, this product has been formulated specifically for use in automatic equipment such as automatic ceramic molds machines making it incredibly easy while also providing optimal results. Finally, the high quality material is easy to work with and provides consistent rheology which helps create a sturdy final product that resists shrinkage during drying even at elevated temperatures up to 2500°F (1371°C).

MEECO’S RED DEVIL 611 Refractory Cement Mortar

MEECO'S RED DEVIL 611 Refractory Cement - Indoor Use Only
  • Pre-mixed, fiber-reinforced, high temperature silicate mortar
  • Use where thicker joints are required
  • Withstands working temperatures up to 3000-Degree F
  • 1 Gallon size, Buff in color
  • NOT FOR OUTDOOR USE. Made in the USA

Product Description

MEECO’S Red Devil Refractory Cement Mortar is a high quality, all-purpose Refractory Cement Mortar that can be used for pottery kilns, ovens and furnace work! It has a maximum temperature of 2300° Fahrenheit (1260° Celsius), cures to an off white color with light tan speckles and is easy to work with. It also has minimal fumes!

Product Details:

  • Maximum Temperature of 2300° F (1260° C) -Cures to an off white color with light tan speckles
  • Easy workability; sands smooth after drying.
  • Fumes are minimal

Pros

  • High quality, all-purpose Refractory Cement Mortar. Can be used for pottery kilns, ovens and furnace work.
  • Maximum Temperature of 2300° F (1260° C). Cures to an off white color with light tan speckles. Easy workability; sands smooth after drying.

Cons

  • Fumes are minimal

Recommended?

Yes! MEECO’S Red Devil Refractory Cement Mortar is a high quality, all-purpose Refractory Cement Mortar that can be used for pottery kilns, ovens and furnace work. It has a maximum temperature of 2300° Fahrenheit (1260° Celsius), cures to an off white color with light tan speckles and it’s easy to work with. It also has minimal fumes which make this product recommended!

Buyer’s Guide

Refractory Cement Mortar is a high-temperature material used to line furnaces and ovens. It’s an excellent choice for making fire pits, barbecue grills, and other similar products because it can be carved into shapes with some effort. Refractory Cement Mortars are also useful in the construction of kilns and furnaces: they retain heat well while draining any molten steel or aluminum that may flow into them.

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Among the most important features to consider when choosing a Refractory Cement Mortar is whether it’s non-toxic. There are many versions on today’s market that contain heavy metals and other toxic components; you should make sure not to buy one of these options if at all possible because they can leach into your food or drink while cooking over them, causing serious health problems down the line.

It would also be wise to choose a high temperature version (400F+) if you intend for this product to be used in various ways around your home: we recommend checking out our buyer’s guide below before making any decisions!

What is Refractory Cement Mortar and what are its Uses?

Refractory Cement Mortar is a type of binding material that sets hard and becomes resistant to heat, chemical corrosion or erosion. They are used in many refractories such as molds for metal casting, kilns & furnaces. In the construction industry it can be used on fireplaces, hearths and stoves.

Refractory Cement Mortars are usually made from a mixture of cement, binder and water; they can also be combined with other materials such as fly ash or silica fume. The addition of these fillers makes the product more durable and resistant to heat & chemicals. However, it does make them harder for building applications requiring easy shaping like fireplaces or flue linings. It is recommended that you use refractory mortar for this type of job instead.

Why use Refractory Cement Mortar for your Project?

Refractory Cement Mortar is a mortar or clay-like material used for construction and repair of kilns, furnaces and fireboxes. It is also known as refactory cement because it has the ability to turn into glass when subjected to heat. When mixed with water, this cement hardens quickly due to its quick drying quality which makes it an ideal choice for temporary repairs such as patching up cracks on brick surfaces before making more permanent renovations. Refractory Cement Mortars are often used in high temperature industrial applications such as chemical plants, steel mills and power stations where they serve not only structural but functional purposes like insulating components against extreme temperatures.

There are two types of Refractory Cement Mortars – lightweight and high-temperature. Their composition varies depending on the type of application they will be used for, so it is important to consider this when choosing materials.

High-temperature cement can withstand temperatures as high as 2300 degrees Celsius (about 4000 degrees Fahrenheit) which makes them perfect for repairing furnaces or lining fireboxes where furnace repair costs may otherwise turn out too expensive. These types usually contain enough alumina content that allows them to contract at a slower rate than clay, thus avoiding heating up or cracking due to uneven contraction rates between inner walls and outer surfaces during cooling down processes. High temperature refractoriness also helps insulate these components by creating an atmosphere around them that is more oxygen-free.

Lightweight Refractory Cement Mortar, on the other hand, has a lower temperature resistance of about 1200 degrees Celsius (about 2100 degrees Fahrenheit) and serves mainly structural purposes such as strengthening foundations or repairing masonry surfaces in kilns and furnaces. They do not contain alumina which makes them less insulating but they are also less dense so they can be used to fill up empty spaces caused by shifting bricks – making them an ideal choice for temporary repairs where there is no need to preserve heat insulation properties like when patching already broken brickwork before major renovations.

Types of Refractory Cement Mortar

There are many types of Refractory Cement Mortar, with special properties and applications. These include:

  • Magnesium oxide (MgO) is used in high-temperature applications; it has an extremely low thermal conductivity at elevated temperatures due to the flow of electrons through the material. It can be formed into different shapes for its application depending on how much magnesium oxide is added to the mixture. MgO should not come into contact with water or carbon dioxide because they will react with each other causing violent exothermic reactions that may lead to fire explosions.
  • Phosphate bonded – This type binds together using phosphoric acid which occurs naturally in teeth enamel, bones, eggshells and pearls . It is especially good for insulation, because it does not release any toxic fumes when heated to the point of ignition.
  • Binder-Calcium aluminate cement – This type has a low expansion rate at high temperature, giving resistance to thermal shock in refractory work. It also allows easy machining during installation and provides an economical choice where moderate heat is required.
  • Molybdenum disilicide – This type has a high thermal conductivity at elevated temperatures, making it useful for heat exchangers. It is often used in the form of tiles because they are easily machined to fit the contours of structures. When mixed with other materials, silicon carbide or alumina can also be applied as coatings.
  • Binder-Silicon carbide cement – This type has low thermal conductivity at elevated temperatures, making it very suitable for high temperature insulation. It is often used in the form of tiles because they are easily machined to fit the contours of structures. When mixed with other materials, silicon carbide or alumina can also be applied as coatings.
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How to choose the best Refractory Cement Mortar for your job

When choosing between different kinds of Refractory Cement Mortars, one must take into consideration the chemical composition. A variety of cement types are available that vary in their ingredients and working properties. After determining how much insulation is needed for your job, you can apply this information to choose which type of Cement will work best for your needs.

Refractory Cement Mortar is often made from very high temperature resistant materials. These are used to patch holes in furnaces, repair places where brick has broken or even build entirely new ovens and kilns. The chemical makeup of the Refractory Cement Mortars determines how much heat it can absorb before being damaged. In general, they begin to break down when exposed to temperatures just above 1550 Celsius (2822 Fahrenheit). However, their ability rapidly decreases as the temperature increases. For example, a common type of furnace cement breaks down at 1713 Celsius (3073 Fahrenheit), while an Alumina-Silica type will last until 1832 Celcius (3300Fahrenheit) before melting away completely.

  • Ceramic cement is a type of Refractory Cement Mortars that are made up mostly or completely from ceramic materials. They are the strongest and most heat resistant, but also much more expensive than other types.
  • Another common type is Fireclay Cement which contains clay combined with calcium aluminate binder to form an exceptionally hard material used for high-temperature insulation. It has good resistance to chemical attack by molten metal at all casting temperatures between.
  • Refractory Mortar can be easily mixed in small batches due to its quick drying time. However it isn’t suitable above 1900 Celcius (3724 Fahrenheit).
  • It should be noted that there are many different grades within each category listed above, so just because you have chosen one type doesn’t mean that it will be a perfect fit for your project. You should research each to determine which one is the best possible match.

Common Mistakes when using Refractory Cement Mortars

  • Do not use more than the recommended amount of water. Though Refractory Cement Mortars are typically very dry and will absorb a lot of moisture, it is important to stick with what has been recommended by the manufacturer in order for your cement mixture to be successful.
  • It’s also best practice when using any type of refractory insulation or coating to ensure that you work on a surface that can withstand high temperatures without sustaining damage (such as steel). If you need something safer, try working on an asphalt slab since it won’t burn even if exposed directly to flames. However, this isn’t ideal because asphalt is extremely cold which means less heat retention for curing times.
  • Do not use a concrete mixer unless you have been directed to do so. Concrete mixers will help blend the ingredients together, but too much stirring can cause damage to Refractory Cement Mortar’s integrity and its ability to withstand high temperatures. It is best practice when using any type of refractory insulation or coating to ensure that you work on a surface that can withstand high temperatures without sustaining damage (such as steel). If you need something safer, try working on an asphalt slab since it won’t burn even if exposed directly to flames. However, this isn’t ideal because asphalt is extremely cold which means less heat retention for curing times.

Environmental Protection

Refractory Cement Mortars are environmentally friendly. They do not contain any harmful chemicals like asbestos, which was used in traditional refractories and has been linked to some serious health issues. There is also less waste when using the product because it can be reused for several applications without fear of negative impact on the environment or human health.

Safety Tips

  • Always wear a mask and gloves while working with Refractory Cement Mortar.
  • If you get any on your skin, wash it off immediately.
  • Refractory Cement Mortar is “like a glue”, so it doesn’t easily come off.
  • If it does get on your skin, you should wash the area immediately with cool water.
Rutland Products 211 Dry Mix Refractory Cement, 10 lbs, 10 Pound
  • Refractory mortar that is ideal for joining or repairing masonry flue tile in any gas or wood...
  • Can be used as a parge coating (thin over-coat) when building or repairing fireboxes
  • Dry mix cement, just add water and trowel into place
  • Dark grey finish
  • For interior use, rated up to 2550°F (1400°C)

FAQs

What is Refractory Cement Mortar?

Refractory Cement Mortars are used in various applications, but most notably they are utilized for castables and mortars. These products form the base of furnaces, kilns, ovens or other types of melting systems. They have superior chemical resistance to high-temperature slags, molten metal or steam that can be found within these vessels which makes them very unique when compared to conventional concrete. Furthermore, many construction materials begin breaking down at temperatures above 900°C (1652°F) – one primary reason why refractories such as those mentioned above were developed!

What is refractory mortar?

Refractories can be used in a variety of applications, including as an ingredient for various types of mortars. Refractory Cement Mortar and lightweight aggregates (such as perlite) are the primary components. The ratio between these materials must be carefully controlled if you want to produce high-quality refractory mortar that will satisfy your needs. This material commonly has one or more binders added too – such as calcium aluminate, aluminous cement and Portland Cement (to name a few). It may also contain additives like talc, boric acid or zirconia; this should all depend on the specific application it’s being utilized for though!

When should you use refractory mortar?

This material is commonly utilized in a variety of applications. It can be used for manufacturing insulation bricks or board, as well as castables and mortars (these are often found within kilns, furnaces and a multitude of other types of melting systems). There’s one primary reason why refractories have been created – most construction materials begin to break down at temperatures above 900°C (1652°F) due to the excessive heat! Therefore, it makes sense that if something cannot withstand these high levels they will not function properly. In addition, this product provides superior chemical resistance which further eliminates issues related to slags or molten metals being present within equipment such as pots or ovens.

Conclusion

Refractory Cement Mortar is a great material to use for many purposes. It’s inexpensive, easy to work with and very durable. The best Refractory Cement Mortar will offer you the most bang for your buck as well as be able to handle all of your upcoming projects! You can’t go wrong with any of these products on our list – they’re all fantastic choices! And remember: no matter which product you choose, make sure it matches up with what kind of project or job you need it for. If there are special requirements involved in the application process, double check that those needs match up exactly before making a purchase!