our product

Perma Crackfill Premix Mortar


Crack Filling Compound


Perma Crackfill is a specially formulated repair material designed to fully meet the requirement of effective repairing of cracks in plasters and in concrete, avoiding the use of costly sealants and putties. Perma Crackfill is a dry powder when mixed with water it forms a creamy consistency mortar which is ready to use in repairing cracks and repairing plasters. Perma Crackfill is reinforced with alkali resistant fibres. Perma Crackfill is available in Grey and off white colour powder.

Crack Filling Compound


  • Perma Crackfill is ideally suited for repairing of superficial plaster cracks as well as structural cracks.
  • Perma Crackfill can be used for repairing ceiling cracks and plasters with ease because of its viscosity.
  • Cracks arising due to plasters cracking at junctions of wall and column or brick work soffit of beam can be effectively sealed.
  • Cracks at parapet wall junction and roof slabs are also sealed with Perma Crackfill.
  • The product is suitable for rendering.


Perma Crackfill replaces costly sealant and putties. It is non-shrink, hence possibility of shrinkage cracks are nonexistent. It has high tensile strength and good adhesion property. The finish achieved is sufficiently smooth. Good resistance to freeze / thaw cycles, carbonation and attack by chlorides. Conventional curing is not required.


Perma Crackfill is available in two grades, namely grey and off white to suit the surrounding surface color and texture. The product is a blend of special cements, special additives and selected grades fine aggregates along with alkali resistant glass fibres. The product when mixed with water in the proportion of 3.5 Volume of powder to one volume of water results in a workable paste which can be trowelled to a fine finish.


It is essential that the surface of the concrete to be repaired is sound, clean and uncontaminated. Chase the crack and form a neat “V” shaped groove at least 6mm wide on surface. Damaged plasters can be cut out in more or less square sides. Defective material must be removed carefully using reducing tools, needle guns or sharp tools and chipping hammers. Force must not be applied as it will damage the sound material beneath.


Just add water to Perma Crackfill by volume in the ratio of 1 volume of water to 3.5 volumes of powder and mix thoroughly to get an even consistency mortar. In demanding situations Perma Bond PVA can be used to replace water and the same can be used for priming the surfaces before application of Perma Crackfill. Whereas, mixing by trowel is suitable for small mixes, it is recommended that an efficient mechanical mixer be used.


Start curing after the material has sufficiently hardened for two days and then allow it to dry out slowly (i.e. protect from rapid drying due to wind, sun or excessive heat). Use of Curing Compound is ideal in repairs.


Perma Crackfill is suitable for all subsequent decorative finishes and painting. The finish obtained by Perma Crackfill is far smoother than conventional plasters.


Form : Free Flowing light grey/off white powder.
Bulk Density : 1600 kg/m3
Application Thickness : 1 mm to 20 mm
Pot Life : 60 minutes at 20° C



In crack repair 1 kg of crackfill repairs 11 linear feet of crack chased to a width of 6 mm and a depth of 3 mm. In rendering 60 kg of crackfill covers 100 sq. ft. of area to a thickness of 2 mm.


Perma Crackfill is non-toxic and safe. Dust masks and hand gloves are recommended to avoid direct inhalation of dust and contact with skin.


Perma Crackfill Grey is available in 1 kg, 10 kg and 25 kg pack.
Perma Crackfill Off white is available in 10 kg and 25 kg pack.


Perma Crackfill has a shelf life of 12 months from the date of manufacture, if stored in a cool and dry place away from moisture.


PERMA warrants that all products are free from any defects of manufacture and comply with the specifications given in their respective technical data sheet. No warranty can be given as to the results of use because conditions of use, such as site conditions, surface preparations, workmanship, weather, structural issues and other factors are beyond the control of PERMA. Purchaser agrees to seek the advice of qualified professionals to carry out tests & take trials to determine the suitability of products for their intended purpose prior to full scale usage of PERMA products and assumes all risks.

The company does not assume any liability for unsatisfactory results, arising from the use of our products. Purchaser’s sole liability is limited to replacement of product or refund of the purchase price paid if any product proven defective. No other warranties, express or implied, shall apply including any warranty of merchantability or fitness for a particular purpose.
PERMA shall not be liable for any consequential damages arising from the use of our products for unsatisfactory results.

The information supplied in this datasheet is based on our experience through extensive research and is given in good faith in order to help prospective users. We reserve the right to update the information provided in our technical data sheet at any time without prior notice within the scope of technical progress or new developments.

[ X ]

Complete Solutions to the

Construction Industry