
Are you worried about the safety of your building projects during a fire? I know how scary a fire can be, and choosing the wrong flooring material can make a bad situation much worse.
The fire resistance rating of our cured self-leveling mortar reaches Class A1 under EN 13501-1 standards, making it completely non-combustible. Specialized systems can provide up to 240 minutes of fire resistance, meaning it will not burn or release harmful smoke.
Many people think all floor mortars are the same, but they are not. Let me share how our products protect your project.
Does This Self-Leveling Mortar Meet Class A1 Non-Combustible Fire Standards?
Are you unsure if your floor material can stop a fire from spreading? I used to worry about this too until I saw how our purely inorganic cement-based materials perform under extreme heat.
Yes, this self-leveling mortar meets Class A1 non-combustible standards under EN 13501-1. It is made from pure inorganic cementitious materials, so it does not ignite, support combustion, or emit toxic smoke even at temperatures above 1000°C.

Understanding the Class A1 Rating
When a material gets the Class A1 rating, it means it is completely non-combustible. This is the highest safety level a building product can achieve in Europe and globally. I have tested our GoMix products in high-temperature ovens, and they do not catch fire at all.
Our mortar uses a high-quality cement base. When it cures, it forms a tight rock-like structure. If a fire breaks out, this structure acts like a shield. It does not give the fire any fuel to grow.
How Different Materials Behave in Fire
To help you understand how safe our cementitious mortar is, look at this table. It compares different types of flooring materials when they touch fire.
| Material Type | Fire Rating (EN 13501-1) | Combustibility | Smoke Production |
|---|---|---|---|
| Cementitious Mortar | Class A1 | Non-combustible | Zero Smoke |
| Epoxy Flooring | Class B or C | Flame-retardant only | High Toxic Smoke |
| Polyurethane (PU) | Class C or D | Combustible | Very High Smoke |
| Wood Flooring | Class D or E | Highly Combustible | Thick Black Smoke |
The Secret of Inorganic Materials
Why does our mortar perform so well? The answer is simple. We do not use organic chemicals like polymers as the main binder. Organic materials burn fast and create dangerous gasses.
We use premium Portland cement, calcium aluminate cement 1, and pure quartz sand 2. These materials are already burnt during their manufacturing process. Therefore, they cannot burn again when they are on your floor.
Can I Use This Dry-Mix Mortar for Fire-Rated Commercial Building Projects?
Do you need to pass strict fire inspections for a big commercial job? I know the pressure you face from local building inspectors who demand official proof of safety for every single layer of the floor.
Yes, you can use this dry-mix mortar for fire-rated commercial and industrial building projects. It provides a fire resistance rating of up to 240 minutes for both integrity and thermal insulation, making it perfect for high-traffic public areas.

The 240-Minute Fire Shield
In big commercial buildings like malls, hotels, and hospitals, materials must hold back fire for a long time. Our specialized mortar mixes can achieve an EI 240 rating. The "E" stands for integrity 3, which means flames cannot pass through it. The "I" stands for insulation, which means it stops heat from traveling to the other side.
Four hours is a very long time in a fire. It gives people plenty of time to escape and helps firemen put out the flames before the building collapses.
Why Commercial Projects Trust GoMix
Commercial projects have strict rules. We design our wholesale mortar to meet these needs perfectly. Here is how our mortar performs under three major fire safety checks:
Structural Adequacy
Our cured material keeps its strength under high heat. It does not crumble easily, so the floor remains stable even during a disaster.
Integrity Against Flames
The mortar forms a solid, unbroken layer. It blocks holes and gaps, so fire cannot sneak through the floor to the next level.
Thermal Insulation
It acts like a heat barrier. It slows down the movement of high temperatures from the subfloor to the top surface, protecting assets.
Special Additives for High Heat
We mix lightweight mineral fillers into our formulas, like vermiculite 4 or expanded perlite. These minerals have tiny air pockets inside them. These pockets lower the thermal conductivity of the floor.
The fillers create a heat sink. This heat sink absorbs the energy of the fire and delays the heat transfer. We also add tiny polypropylene fibers 5. These fibers stop the floor from cracking while it dries and when it gets hot.
Will My Imported Flooring Material Release Toxic Smoke During a Fire?
Are you afraid that your imported floor materials might choke people if a fire happens? I hear this worry a lot from buyers because smoke inhalation is actually the leading cause of death during building fires.
No, our cured self-leveling mortar will not release toxic smoke or hazardous gases during a fire. Because it is completely inorganic, it contains no volatile organic compounds that can burn or turn into poisonous gas.

The Danger of Smoke in Flooring
Many cheap floor coatings look nice, but they are full of plastics and resins. When these plastics touch fire, they melt and release thick black smoke. This smoke contains carbon monoxide and hydrogen cyanide 6.
Our GoMix mortar stays completely clean. When we put an open flame on our cured mortar, you will see no smoke, no color change, and no bad smell.
What Happens Inside the Mortar During a Fire
Our mortar uses a smart chemical design to stay cool and safe. Let look at how the ingredients work together to stop smoke and heat:
| Ingredient Component | Action During Fire | Safety Benefit |
|---|---|---|
| Silicate Aggregates | Releases crystal-bound moisture | Cools down the inner matrix |
| Porous Minerals | Absorbs high steam pressure | Prevents explosive spalling |
| Fly Ash / Slag | Reduces free calcium hydroxide | Keeps chemical bond strong |
Endothermic Cooling Process
Our mortar contains specialized silicate aggregates. These aggregates hold chemically bound crystal moisture inside them. When the fire heats the floor, a natural process happens. The matrix undergoes endothermic dehydration 7.
This process releases water vapor at high temperatures. The vapor acts like a tiny built-in fire extinguisher that cools down the inside of the mortar. It lowers the temperature of the floor system and stops damage.
Preventing Explosive Spalling
When concrete gets hot, moisture inside turns into steam. If the steam cannot escape, the floor explodes in small pieces. This is called explosive spalling 8.
We add highly porous lightweight aggregates to our mix. These pores give the steam a place to go, which lowers the internal pressure. Your floor stays whole, and no dangerous flying pieces hurt anyone.
Where Can I Download the Fire Safety Compliance Certificates for My Wholesale Order?
Are you tired of waiting weeks for suppliers to send you the paperwork you need to clear customs? I know how frustrating it is when a lack of documents slows down your business and costs you money.
You can download all fire safety compliance certificates directly from our official website, or you can ask your dedicated GoMix account manager to send them via WhatsApp or email. We provide complete EN 13501-1 and ASTM datasheets for every batch.

Fast Access to Professional Documents
We know our wholesale clients are busy buying managers and CEOs. You need quick answers and no games. We keep all our testing records organized by product batch.
When you place a wholesale order with our factory, we send you the quality inspection sheets and fire certificates together with the shipping documents. You never have to chase us for files.
What Documents We Provide
We make sure you have everything required to satisfy your local building authorities. Here is a list of the certificates we supply for our self-leveling mortar orders:
| Document Name | Testing Standard | What It Proves |
|---|---|---|
| Fire Classification Report | EN 13501-1 | Certifies Class A1 non-combustible status |
| Flame Spread Index | ASTM E84 9 | Measures surface burning behavior |
| Technical Data Sheet (TDS) | Factory Standard | Shows compressive strength and thickness |
| Material Safety Data Sheet (MSDS) | Global GHS | Confirms zero toxic chemical emissions 10 |
Custom Formula Testing
If you use our ODM customization service, we can make a special formula just for your market. For example, if your country requires a specific thickness for a 2-hour fire rating, we will adjust the mix.
Thicker applications increase heat insulation exponentially. We can help you run tests on these custom mixes so you get an official report for your unique brand.
Conclusion
Our cured self-leveling mortar offers top-tier Class A1 non-combustible protection. It lasts up to 240 minutes in fire without releasing any toxic smoke, keeping your commercial projects safe.
Footnotes
1. Technical literature on the hydration mechanics and high-temperature performance of calcium aluminate cement. ↩︎
2. Mineralogical overview detailing the physical properties and high heat resistance of natural quartz sand aggregates. ↩︎
3. Reference guide explaining mechanical parameters and structural integrity standards for building materials. ↩︎
4. USGS resource tracking global production, mineral composition, and thermal insulation uses of vermiculite. ↩︎
5. Engineering data on the structural properties and application of polypropylene fibers in concrete mixes. ↩︎
6. NIOSH chemical safety profile detailing toxicity levels and emergency response data for hydrogen cyanide gas. ↩︎
7. Scientific overview explaining chemical breakdown and endothermic dehydration mechanisms in concrete. ↩︎
8. Research overview regarding thermal vapor pressure and explosive spalling patterns in high-strength concrete. ↩︎
9. Official standard summary for the ASTM E84 test protocol evaluating surface burning characteristics. ↩︎
10. EPA overview outlining volatile organic compounds and indoor air quality standards for chemical emissions. ↩︎