Anti-Crack Mortar

Fiber Reinforced Anti-Crack Render Mortar for Interior & Exterior Wall

Caberry Anti-Crack Mortar is a new type of anti-crack building material with high tensile strength, excellent freeze-thaw resistance and eco-friendly formula. It is easy to mix and plaster, widely used on interior and exterior walls of all kinds of buildings, especially matched with external thermal insulation system.

It effectively disperses stress and reduces cracking caused by temperature change, substrate deformation and shrinkage, serving as the protective base coat before putty, paint or tile.

• Interior and exterior wall leveling & anti-crack protection for residential, commercial and industrial buildings.
• Base coat for external wall thermal insulation system, used together with alkali-resistant mesh cloth.
• Renovation project for old walls to prevent surface cracking and peeling.
• Under-layer protection before exterior paint, stucco or tile cladding.

High Tensile & Anti-Crack Performance

Special fiber blend improves flexibility and tensile strength, effectively resists shrinkage cracking and temperature stress cracking.

Excellent Freeze-Thaw Resistance

Stable performance under repeated freezing and thawing cycles, suitable for exterior walls in cold regions.

Eco-Friendly & Low VOC

Non-toxic raw material formula, safe for residential and indoor construction.

Good Workability

Smooth paste after mixing, good thixotropy, easy troweling, less sagging on vertical walls.

Perfect Match for Insulation System

Works well with anti-alkali mesh cloth, forms a composite protective layer over thermal insulation base.

Strong Substrate Adhesion

Good bonding strength on cement mortar, concrete, aerated block and insulation substrate.

Note: Mixing water ratio, tensile strength and construction thickness can be adjusted for different market standards.

1. Substrate Preparation

   Make sure wall surface is flat, clean, oil-free, stable and free of loose residues. If the substrate is too dry, pre-spray water for wetting; avoid standing water on surface.

2. Material Preparation

   Add clean water following the proportion marked on the bag. Stir thoroughly until lump-free paste. Let it rest for 5–10 minutes, stir again before application.

3. Trowel Application

   Apply evenly by trowel, single coat thickness controlled at 3–5 mm. For exterior insulation system, embed alkali-resistant mesh cloth into fresh mortar to boost anti-crack performance.

4. Multi-Layer Plastering

   After the first layer is fully dried, apply extra layers if thicker protection is required. Allow around 24 hours curing time per layer, adjust according to ambient temperature and humidity.

• Do not apply on loose, dusty, oily or frozen substrate.
• Control water ratio; over-water will reduce strength and increase shrinkage risk.
• Do not add extra cement, sand or other additives without technical approval.
• For exterior insulation system, mesh cloth embedding is mandatory for long-term anti-crack effect.
• Avoid construction under direct strong sunshine, heavy wind, rain or freezing weather.
• Finish subsequent coating only after mortar is fully cured.

• Package: Woven bag; OEM / private label packaging available.
• Storage: Keep sealed, dry and ventilated, protect from moisture and rain.
• Trade Terms: EXW, FOB Guangzhou, CIF, DDP available.

We provide complete documents for import and project tender:

• ✅ TDS Technical Data Sheet
• ✅ MSDS / SDS Safety Data Sheet
• ✅ Tensile strength, freeze-thaw resistance test report
• ✅ Factory quality certificate

Dry powder sample can be arranged for lab test and on-site trial mixing.

Sample policy: Sample cost and freight will be borne by the buyer.

Q: What is the function of anti-crack mortar?
A: It is used as protective base coat to reduce wall cracking, commonly matched with external thermal insulation system together with mesh cloth.

Q: Is mesh cloth necessary?
A: Highly required for exterior insulation system; it greatly improves the whole system’s anti-crack performance.

Q: What thickness for one coat?
A: Normally 3–5 mm per layer; build up extra layers if thicker protection is needed.

Q: Can it be used for interior wall?
A: Yes, suitable for both interior and exterior walls.

Q: Can you provide English TDS and MSDS?
A: Yes, complete English technical documents ready for customs clearance.