Perma Plast – EX

ASTM C 494 : Types A & D
IS : 9103-2007
IS : 2645-2003

Perma Plast- EX is a water reducing and general purpose plasticiser for concrete. It is a product based upon lignosulfonates. Ideally functions like an integral waterproofing compound in concrete and mortar.

Perma Plast - EX


  1. To increase workability.
  2. To increase compressive strength.
  3. To affect cement economics.
  4. For hot weather concreting.
  5. For waterproofing of concrete and mortar.


  1. In areas of congested reinforcement where high workability is beneficial.
  2. In pre-cast concrete manufacturing.
  3. In concrete brick and block manufacturing.
  4. For hot weather concreting.
  5. For waterproofing of concrete and mortar.


  1. Increases workability.
  2. Improves cohesive property in concrete.
  3. Reduces water demand in concrete.
  4. Reduces permeability in concrete and mortar.


Perma Plast-EX is a plasticiser cum integral waterproofing compound which disperses and deflocculates the cement particles within a concrete mix. It can be used to improve workability without the addition of extra water or to allow reductions in free water content of the concrete mix.


Field trials should be conducted to determine the optimum addition rates of Perma Plast-EX. A dosage range of 100 ml to 500 ml per 50 kgs of cement is recommended as an initial starting point. For waterproofing work the dosage shall be 100 ml per 50 kg bag of cement. In demanding situations the dosage could be doubled.


Perma Plast-EX should be added to the concrete mix during the mixing cycle at the same time as the water. Never add Perma Plast-EX to dry cement.


Typical properties of Perma Plast-Ex are as follows:

Colour : Dark brown/black liquid
Specific Gravity : 1.17at 25°C
Air Entrainment : 1% maximum dependent on grading of sand and water content.
 Chloride Content : Free from added Chlorides
 Nitrate Content : NIL


A liquid admixture based upon refined lignosulfonates.


Perma Plast-Ex is not a health hazard or fire risk. Spillages should be washed immediately to avoid possibilities of slipping.


Perma Plast-Ex is available in 100 ml, 200 ml, 500 ml, 1 Ltr, 2 Ltr, 5 Ltr, 10 Ltr, 20 Ltr, 25 Ltr, 100 Ltr and 210 Ltr Pack.


Perma Plast-Ex has a shelf life of 24 months if stored in manufacturer’s original packing.


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.